[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Leslie Ault"]
[Black "?"]
[Result "1-0"]
[Annotator "Ault, Leslie"]
[SetUp "1"]
[FEN "8/8/8/8/8/1Rn5/6k1/rnK5 w - - 0 1"]
[PlyCount "4"]

{[#]} 1. Rb2+ Kf3 (1... Nd2+ 2. Kxd2 Nd5) 2. Ra2 Rxa2 (2... Nxa2+ 3. Kb2 Nbc3
4. Kxa1) (2... Nd2+ 3. Kb2 Rxa2+) 1-0

[Event "Kemeri"]
[Site "Kemeri LAT"]
[Date "1937.06.22"]
[Round "6"]
[White "Paul Keres"]
[Black "Eero Einar Book"]
[Result "1-0"]
[ECO "E07"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "2rq1rk1/3n2pp/b1p2b2/p1P1p3/1p1PN3/6P1/PB3PBP/R2QR1K1 w - - 0 1"]
[PlyCount "0"]
[EventDate "1937.06.16"]

{[#]}  1-0

[Event "Champions Showdown in Saint Louis (Blitz"]
[Site "St Louis, MO USA"]
[Date "2017.11.12"]
[Round "8.1"]
[White "Hikaru Nakamura"]
[Black "Veselin Aleksandrov Topalov"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2774"]
[BlackElo "2749"]
[Annotator "Soltis, Andy"]
[PlyCount "167"]
[EventDate "2017.10.21"]
[EventType "blitz"]

1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. c3 cxd4 5. exd4 Nf6 6. Bd3 Bg4 7. Qb3 Qc8 8.
Nd2 e6 9. Ngf3 Bh5 10. O-O Be7 11. Rae1 a6 12. Qc2 Bg6 13. Ne5 Nxd4 14. Qa4+
Nc6 15. Nxg6 hxg6 16. Nf3 b5 17. Qd1 Qd7 18. a4 bxa4 19. Qxa4 O-O 20. Ra1 Bd6
21. Bg5 Qb7 22. Qh4 Be7 23. b4 e5 24. Be2 e4 25. Nd2 Nd8 26. Qh3 Ne6 27. Be3
Qc7 28. Rfc1 Nf4 29. Bxf4 Qxf4 30. Nb3 Qc7 31. Bxa6 Bd6 32. Be2 Rxa1 33. Rxa1
Be5 34. Nc5 Bd6 35. Na6 Qe7 36. Rd1 Be5 37. b5 Qa3 38. Qe3 Qb2 39. Qd2 Qxd2 40.
Rxd2 Bxc3 41. Ra2 Bd4 42. Nb4 Bc5 43. Nc6 d4 44. Bc4 d3 45. h3 e3 46. fxe3 d2
47. Bb3 Bxe3+ 48. Kf1 Ne4 49. Ke2 Bg5 50. Ra7 Nc5 51. Bd1 Re8+ 52. Kf3 Re1 53.
Be2 d1=Q 54. Ra8+ Kh7 55. Bxd1 Rxd1 56. b6 Rb1 57. Ra5 Ne6 58. Ra6 Bf6 59. Na5
Nc5 60. Ra7 Rxb6 61. Rxf7 Ra6 62. Nc4 Ne6 63. Rb7 Ra4 64. Nd6 Rd4 65. Ne8 Be5
66. Re7 Ng5+ 67. Ke3 Re4+ 68. Kd3 Rd4+ 69. Ke3 Rd5 70. h4 Kg8 71. Rb7 Nf7 72.
Nc7 Rd7 73. Rb8+ Kh7 74. Ne6 Bxb8 75. Nf8+ Kg8 76. Nxd7 Ne5 77. Nxb8 g5 78.
hxg5 Kf7 79. Kf4 Nd3+ 80. Ke4 Ne1 81. Nc6 Nxg2 82. Ne5+ Ke6 83. Nf3 {[#]} Nh4
84. Nxh4 1-0

[Event "Champions Showdown in Saint Louis (Rapid"]
[Site "St Louis, MO USA"]
[Date "2017.11.10"]
[Round "6.2"]
[White "Alexander Grischuk"]
[Black "Fabiano Caruana"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2782"]
[BlackElo "2799"]
[Annotator "Soltis, Andy"]
[PlyCount "93"]
[EventDate "2017.11.10"]
[EventType "rapid"]

1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 Nb6 6. Bd3 Nc6 7. Ne2 Bg4 8. f3
Bh5 9. Be4 e6 10. O-O Bg6 11. Be3 Be7 12. a3 Qd7 13. Nbc3 O-O-O 14. Qc2 f5 15.
Bxc6 Qxc6 16. Bf2 f4 17. Qc1 Bg5 18. Nxf4 Kb8 19. Nce2 Qe8 20. Be3 Bf5 21. Rd1
Bxf4 22. Bxf4 h6 23. Be3 Nd5 24. Nc3 g5 25. Nxd5 Rxd5 26. h3 Rg8 27. b3 Qe7 28.
Ra2 Bg6 29. a4 Be8 30. Qa3 Qh7 31. b4 h5 32. Bf2 g4 33. fxg4 hxg4 34. h4 g3 35.
Bxg3 Bg6 36. b5 Bf5 37. Qe3 Rd7 38. d5 Rdg7 39. dxe6 Bxe6 40. Ra3 b6 41. Qf2
Rf7 42. Qe1 Qc2 43. Rc1 Qb2 44. Rac3 Rfg7 45. R1c2 Qb4 {[#]} 46. Rc6 Rxg3 (
46... Qxa4) 47. Qxb4 1-0

[Event "Training Match"]
[Site "Leningrad, USSR"]
[Date "1970.07.16"]
[Round "2"]
[White "Viktor Korchnoi"]
[Black "David Bronstein"]
[Result "1-0"]
[ECO "D33"]
[Annotator "Soltis, Andy"]
[PlyCount "103"]
[EventDate "15.??.??"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 7. Bg2 Bb4 8. O-O
Nge7 9. e4 O-O 10. exd5 Nxd5 11. Qc2 Nde7 12. d5 Bf5 13. Qd1 Na5 14. Re1 a6 15.
Nd4 Bd3 16. Bg5 h6 17. Bxe7 Bxe7 18. Be4 Bxe4 19. Rxe4 Bf6 20. Nf5 Kh7 21. d6
Bxc3 22. bxc3 Qf6 23. Qd5 Nc6 24. Rae1 Rad8 25. d7 g6 (25... Qxc3 26. Rd1 Rxd7
27. Qxd7 Rd8) 26. Ne3 (26. Nd4) 26... Nb8 27. Ng4 Qf5 28. Qd2 h5 {[#]} (28...
Qg5 29. Qxg5 hxg5 30. Re8) 29. Qh6+ Kg8 30. Rf4 Qxg4 31. Rxg4 (31. Rxf7 Rxf7 (
31... Kxf7 32. Qh7+ Kf6 33. Qe7+) 32. Re8+) 31... hxg4 32. Qf4 Nxd7 33. Qxc4
Nf6 34. Qf4 Kg7 35. Re7 Rfe8 36. Rxe8 Rxe8 37. c4 b6 38. Qd4 Re6 39. a4 Rc6 40.
f3 gxf3 41. g4 Kf8 42. h4 a5 43. Kf2 Ke7 44. Qe3+ Re6 45. Qa3+ Ke8 46. Kxf3 Re5
47. Qb2 Nd7 48. Qh2 Kf8 49. h5 Kg7 50. Qd2 Nf8 51. h6+ Kh7 52. Qf4 1-0

[Event "New York"]
[Site "New York"]
[Date "1947.??.??"]
[Round "?"]
[White "E Traun"]
[Black "Eliot Sanford Hearst"]
[Result "0-1"]
[ECO "C63"]
[Annotator "Soltis, Andy"]
[PlyCount "32"]
[EventDate "1947.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. exf5 Nf6 5. Bxc6 dxc6 6. Nxe5 Bxf5 7. O-O Bd6
8. Qf3 Be4 9. Qe2 O-O 10. f3 Bxe5 11. fxe4 Bd4+ 12. Kh1 {[#]} Nxe4 13. Rf3 Nf2+
(13... Qh4) 14. Kg1 Kh8 15. Kf1 Re8 16. Qc4 Qe7 0-1

[Event "60th US Open"]
[Site "Omaha, NE USA"]
[Date "1959.07.28"]
[Round "8"]
[White "Eliot Sanford Hearst"]
[Black "Walter Litwinczuk"]
[Result "1-0"]
[ECO "B33"]
[Annotator "Soltis, Andy"]
[PlyCount "49"]
[EventDate "1959.??.??"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Qb6 6. Nb3 Nc6 7. O-O Be7 8.
Nc3 a6 9. Qe2 Qc7 10. Bg5 Ne5 11. f4 Nxd3 12. cxd3 O-O 13. e5 Bc5+ 14. d4 Bxd4+
15. Nxd4 Qc5 16. exf6 Qxd4+ 17. Kh1 g6 18. Rad1 Qb4 19. f5 d5 20. fxe6 fxe6 21.
Bh6 Rf7 22. Nxd5 Qa5 {[#]} 23. Ne7+ Kh8 24. Qe5 Qxe5 25. Rd8+ 1-0

[Event "Marshall CC vs. London National Chess Ce"]
[Site "corr"]
[Date "1956.??.??"]
[Round "?"]
[White "Eliot Sanford Hearst"]
[Black "M Franklin"]
[Result "1-0"]
[ECO "B93"]
[Annotator "Soltis, Andy"]
[PlyCount "51"]
[EventDate "1956.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. O-O
Bg7 9. Nf3 Nc6 10. Kh1 O-O 11. Qe1 Be6 12. f5 Bd7 13. Qh4 Ne5 14. Nxe5 dxe5 15.
g4 Bc6 16. g5 Nd7 17. f6 exf6 18. gxf6 Bh8 19. Rf3 b5 20. Bg5 Rfd8 21. Rh3 Nf8
22. Rf1 Rd6 23. Nd5 Bxd5 24. exd5 Qd8 {[#]} 25. Bxg6 fxg6 (25... Nxg6 26. Qxh7+
Kf8 27. Qxh8+) 26. f7+ 1-0

[Event "USA-ch"]
[Site "New York, NY USA"]
[Date "1954.06.13"]
[Round "13"]
[White "Eliot Sanford Hearst"]
[Black "Saul Wachs"]
[Result "1-0"]
[ECO "E76"]
[Annotator "Soltis, Andy"]
[PlyCount "55"]
[EventDate "1954.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Nf3
Nc6 9. Qe2 Bg4 10. Be3 Bxf3 11. gxf3 Qa5 12. O-O Qh5 13. Kh1 O-O 14. Rg1 Kh8
15. Rg3 Rac8 16. a3 e6 17. Nb5 Ne8 18. Nxa7 Nxa7 19. Bxa7 Qa5 20. Be3 f5 21.
Rag1 Nf6 22. Qg2 Rc7 23. exf5 exf5 24. Bd4 Nh5 {[#]} 25. Rxg6 hxg6 (25... Bxd4
26. Rg8+) (25... Rff7 26. Rg5) 26. Qxg6 Nf6 (26... Bxd4 27. Qh6+) 27. Bxf5 Qa4
28. Bxf6 1-0

[Event "USA-ch"]
[Site "New York, NY USA"]
[Date "1954.06.01"]
[Round "4"]
[White "Eliot Sanford Hearst"]
[Black "Ariel Mengarini"]
[Result "1-0"]
[ECO "E76"]
[Annotator "Soltis, Andy"]
[PlyCount "87"]
[EventDate "1954.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 Nbd7 7. Be2 c6 8. h3 e5
9. Be3 Nh5 10. fxe5 dxe5 11. d5 Ng3 12. Rg1 cxd5 13. cxd5 Qa5 14. Kf2 Nxe2 15.
Qxe2 b6 16. a3 Ba6 17. b4 Bxe2 18. bxa5 Ba6 19. axb6 axb6 20. g4 Rfc8 21. Rgc1
Nc5 22. Bxc5 Rxc5 23. Na4 Rb5 24. Rc6 f5 25. gxf5 gxf5 26. Rg1 Rf8 27. Rc7 Rf7
28. Rxf7 Kxf7 29. Ng5+ Ke8 30. Ne6 Bf8 31. Rg8 fxe4 32. Rxf8+ Ke7 33. Ra8 e3+
34. Kxe3 Ra5 35. Nxb6 Rxa3+ 36. Ke4 Kd6 37. Rd8+ Ke7 38. Kxe5 Re3+ 39. Kf4 Rxh3
40. Rd7+ Kf6 41. Ra7 Be2 {[#]} 42. Nd7+ Ke7 (42... Kg6 43. Ne5+ Kh6 44. Ng5)
43. Ne5+ Ke8 (43... Kd6 44. Rd7#) 44. d6 1-0

[Event "60th US Open"]
[Site "Omaha, NE USA"]
[Date "1959.07.21"]
[Round "2"]
[White "Walter Harris"]
[Black "Eliot Sanford Hearst"]
[Result "0-1"]
[ECO "A81"]
[Annotator "Soltis, Andy"]
[PlyCount "44"]
[EventDate "1959.??.??"]

1. Nf3 f5 2. b3 Nf6 3. Bb2 e6 4. g3 Be7 5. Bg2 O-O 6. O-O d6 7. d4 Qe8 8. Nfd2
Qg6 9. c4 Nc6 10. Re1 e5 11. dxe5 Nxe5 12. f4 Neg4 13. e4 d5 14. Nf3 dxe4 15.
Ne5 Nxe5 16. fxe5 Rd8 17. Qe2 Bc5+ 18. Kh1 Ng4 19. Rf1 {[#]} Nxh2 20. Kxh2 Qh6+
(20... Rd3) 21. Bh3 f4 22. g4 Rd3 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Shaw, Rishil"]
[Black "Edwa rds, Garr et t"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "1430"]
[BlackElo "1215"]
[Annotator "Alburt, Lev"]
[PlyCount "47"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 {Diagram [#]} (3... Bc5) 4. Ng5 d5 (4... Bc5) 5.
exd5 Na5 (5... Nxd5) (5... b5) 6. Bb5+ Bd7 {Diagram [#]} (6... c6 7. dxc6 bxc6
8. Be2 h6) 7. Bxd7+ (7. Qe2 Qe7 (7... Be7) (7... Bd6)) (7. Be2) 7... Qxd7 8.
Nc3 Nxd5 9. Qf3 {Diagram [#]} c6 (9... Nxc3 10. Qxc3 Nc6) (9... Nb4 10. Qd1 (
10. Qe4 Nac6)) 10. O-O h6 11. Nge4 Be7 (11... O-O-O) (11... Nb4) (11... f5) 12.
Qg3 Bf6 (12... O-O) (12... Qe6) 13. Nxf6+ (13. d4) 13... gxf6 14. Nxd5 Qxd5 15.
d3 {Diagram [#]} O-O-O (15... c5 16. Qg7 O-O-O (16... Ke7 17. -- Rag8)) 16.
Qh3+ (16. b4) 16... Kb8 17. b4 Qd4 18. Rb1 Qc3 19. Rb2 Nc4 20. dxc4 Qxc4 21.
Be3 {Diagram [#]} Qc3 22. Bxa7+ Kxa7 23. Qxc3 Rde8 24. b5 1-0

[Event "USA-ch"]
[Site "Mentor"]
[Date "1977.??.??"]
[Round "8"]
[White "Christiansen, Larry Mark"]
[Black "Lein, Anatoly"]
[Result "0-1"]
[ECO "D55"]
[WhiteElo "2460"]
[BlackElo "2525"]
[Annotator "Hess, Robert"]
[PlyCount "108"]
[EventDate "1977.08.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "9"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]

{A Trip Down Memory Lein Anatoly Lein was a phenomenal chess player. In his
prime he ranked among the top 25 players in the world, and won the Moscow
Championship in 1971. A mainstay in the USSR Championships of the 1970s, Lein
was one of the earlier Soviet emigres to reside in the United States. Lein's
presence on the chess scene was felt for decades: in 1978 he helped the U.S.
Olympiad team to a bronze medal and in his 70s he was still competing in U.S.
Championships. To honor Lein following his passing on March 1, 2018, this
month's column is dedicated to his smooth operator technique against an
American legend.} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. Bg5 Ne4 ({The
inclusion of ...h6 transposes the game to the Lasker Defense, which, among
others, GM Erich Eliskases used with early success.} 5... O-O 6. e3 h6 7. Bh4
Ne4 8. Bxe7 Qxe7 {and here White plays 9. Rc1 and typically tries to claim a
slight advantage.} 9. Rc1) 6. Bxe7 Qxe7 7. e3 Nxc3 8. bxc3 {White is happy to
capture towards the center, while Black aims to fortify the d5 square without
having to concern himself with potential captures on e4. White is slightly
better, but a pressing advantage is hard to come by.} c6 9. Qb3 ({White can
attempt to gain a tempo with} 9. Qc2 O-O (9... Nd7) 10. Bd3 {though it's
unclear if this actually harms Black in any way. Moreover, Black need not
castle immediately and can choose 9...Nd7 as an alternative.}) 9... O-O 10.
cxd5 ({On the prior turn and going forward,} 10. a4 {must always be considered.
This move order forces Black to make a concession in order to free up the
bishop on c8, whereas the game continuation released some of the tension and
allowed Lein to develop his pieces. Here, 10...b6 is met by a quick a5 with
pressure, while trying to mix things up with 10...Nd7 11. a5 dxc4 12. Bxc4 e5
provides Black some breathing room but White's compact pawn structure and lead
in development gives him an advantage.} b6 (10... Nd7 11. a5 dxc4 12. Bxc4 e5)
11. a5) 10... exd5 11. c4 {A completely logical follow-up, though perhaps
Christiansen could have delayed this push.} (11. Bd3 {provides additional
flexibility. If Black continues in a similar fashion as Lein did, then White
can even consider playing for e3-e4 rather than c3-c4.}) 11... Be6 12. c5 {[#]}
Rc8 ({Chiseling at the pawn chain with} 12... b6 {would be the inclination of
modern players (and those who do not enjoy temporary passivity). But Lein
sought not to alter the current dynamics, instead demonstrating his deep
understanding of the structure in its entirety: the essential point is that
the b7 pawn - the base of the pawn chain - is not easy to reach. On the other
hand, Black is able to initiate pawn breaks on the kingside. After} 13. Rc1
bxc5 14. Qa3 {the idea of dxc5, freeing d4 for the knight, can be challenging
for Black.}) 13. Be2 Rc7 $1 {The exclamation is for Lein's commitment to his
principles rather than the strength of the move. Black's position is
unappealing, but the foundation is rock solid.} ({Again} 13... b6 {is a more
forceful variation, but once more Lein opts for eventual counterplay on the
kingside.}) 14. a4 Nd7 15. a5 a6 16. O-O Bg4 17. Rfe1 {[#]} Kh8 $1 {Lein
continues the waiting game. Any pawn move creates some sort of irreversible
weakness. Lein, ever the technician, seeks out an opportune moment.} ({As an
example,} 17... f5 {might force the knight to remain on d7, lest the enemy
knight jump into e5 with f2-f4 to follow. Capturing on f3 will remove the
threat of Ne5, of course, but then White has an unopposed bishop. Not the end
of the world considering the closed structure, but always something you have
to consider before committing to.}) ({The unnecessarily aggressive} 17... g5 $2
{fails to} 18. e4 $1 dxe4 19. Nxg5 $1 Qxg5 20. Qg3 {White recoups the
sacrificed material, with at least a pawn interest.} Rcc8 21. Bxg4 Rd8 22. Rxe4
Nf6 23. Re5 $1) 18. Ra4 Re8 19. Rb4 Nf8 20. Rb1 Bc8 {[#] I try to avoid using
engines as much as possible in my analysis, but I switched one on for a second
just to verify my instincts: at a low depth it suggests White is about a pawn
ahead. Why? How? The answer is space, of which Christiansen had ample. White
objectively should be doing well, yet no targets exist with b7 well defended,
so it was Lein quickly challenging his opponent's setup.} 21. Nd2 $2 {A step
in the wrong direction. Christiansen will not be playing for an e3-e4 break
anytime soon, particularly when he is retreating. The knight was better placed
on f3, where it could hop to e5.} (21. Bd3 {can be met by an eventual ...f5,
though that hands White the e5 square. I trust that Lein planned to continue
his path forward with 21...g6 or the more feisty 21...g5.} g6 (21... g5)) 21...
f5 22. Bf1 ({Another move indicating that Christiansen was sweating here. It
was not too late to admit that things are quickly spiraling out of control and
play} 22. Nf3) 22... g5 {Lein has gained great momentum, as Christiansen must
contend with the impending pawn storm.} 23. Re1 Qf6 24. Qd1 Rce7 25. Bd3 g4 {
[#]} 26. Rb2 $4 {A terrible oversight by Christiansen, who spent the past five
moves backpedaling.} (26. Be2 {with Nf1 next was a better defensive try. Lein
has made great strides, but breaking through on the kingside will be difficult.
}) 26... Qxd4 27. exd4 Rxe1+ 28. Qxe1 Rxe1+ 29. Nf1 {Black's extra pawn on b7
is unable to become a passer anytime soon. It appears that White still has
drawing chances if the rooks get traded, since Black has a tough time
attacking the remaining pawns. Unfortunately for Christiansen, Lein's
extroardinary foresight accounted for the minor piece ending: Black's path is
more straightforward than meets the eye.} Kg7 ({Lein could have gone pawn
hunting with} 29... Ra1 {though his endgame schooling informed him that
quality pieces can offset the cost of a pawn loss. This variation is very good
for Black, but was a lot to wade through.} 30. Re2 Kg8 (30... Be6 31. Rb2) 31.
Re8 Be6 32. Rb8 Rd1 33. Bc2 Rxd4 34. g3 (34. Rxb7 Rc4 35. Ne3 Rxc5 {doesn't
allow White to take the important pawn on f5, due to back rank mate.}) 34...
Rb4 ({Trying to snag a third pawn only helps White gain counterchances after} 
34... Rc4 35. Ne3 Rxc5 36. Bxf5) 35. Ne3 Kf7 36. Nxf5 Bxf5 37. Bxf5 Ne6 {
and Black should win.}) 30. Rb1 {The rook trade was forced because Black was
ready to win pawns.} Rxb1 31. Bxb1 Kf6 32. Nd2 {White needs a way to defend d4
now that f5 is protected.} f4 33. f3 h5 34. Kf2 (34. fxg4 Bxg4 {is immediately
over. Black will remove the guard of the pawn on d4 by swapping bishop for
knight.}) 34... Ne6 35. Nb3 Ng5 36. Nc1 Bf5 {Perfect technique. The endgame is
won because of the huge spatial advantage, with the threat of ...h5-h4-h3
allowing Lein to pry open the kingside and free infiltration squares.} 37. Bxf5
Kxf5 38. Ne2 h4 39. Ng1 Ne6 40. Ne2 h3 {[#] After all that, it is the base of
White's pawn chain that gets attacked, and Christiansen can't keep the status
quo. The resulting pawn ending becomes a footrace that Black easily wins.} ({
Strange things happen around move 40, but Lein was not in the business of
throwing away won positions. Absolutely terrible would be} 40... gxf3 $4 41.
gxf3 {and good luck making progress. When the Black knight gets to c4, the
White knight sits on b3 and shuffling the king will then hold a draw.}) 41.
fxg4+ Kxg4 42. gxh3+ Kxh3 43. Kf3 Kxh2 44. Nxf4 Nxf4 45. Kxf4 Kg2 46. Ke5 Kf3
47. Kd6 Ke4 48. Kc7 Kxd4 49. Kxb7 Kxc5 50. Kxa6 d4 51. Kb7 d3 {[#]
Christiansen resigned, for 52. a6 d2 53. a7 d1Q 54. a8Q is met by Qb3+ and
White has no alternative but to allow a queen trade. Anatoly Lein never won a
U.S. Championship, but he taught some valuable lessons to future champions
like Christiansen and Joel Benjamin. Falling victim to Lein undoubtedly
encouraged the younger generations to continue honing their craft; GM
Benjamin's tribute video to Lein indicates as much.} 52. a6 d2 53. a7 d1=Q 54.
a8=Q Qb3+ 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Training Position"]
[Black "K. Sakaev"]
[Result "*"]
[Annotator "Sakaev / Landa"]
[SetUp "1"]
[FEN "2kr1b1r/1pq3p1/2p3p1/p2nPp2/P1BP4/1Q6/1P1B2PP/R4RK1 w - - 0 19"]
[PlyCount "15"]
[SourceTitle "#131, volume 1"]

{White has more space, a strong pawn on e5 and the two bishops. He has the
advantage. However, Black has organised a blockade in the centre, and it is
not easy to open lines on the queenside. Therefore, White voluntarily
surrenders his two bishops, obtaining in return new objects of attack:} 19.
Bxd5 $1 Rxd5 20. Qxd5 cxd5 21. Rac1 {Black has to deal not only with a
possible entry down the c-file, but also with the defense of the pawn a5 -
this is impossible.} b6 22. Rxc7+ Kxc7 23. Rc1+ Kd7 24. e6+ $1 Kxe6 25. Rc6+
Kd7 26. Rxb6 {The a5-pawn is lost, and White is close to winning.} *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Training Position"]
[Black "K. Landa"]
[Result "*"]
[Annotator "Sakaev / Landa"]
[SetUp "1"]
[FEN "7k/1p4p1/7p/3P1n2/4Q3/2P2P1b/PP3q1P/6RK b - - 0 1"]
[PlyCount "7"]
[SourceTitle "#251, volume 2"]

{It is obvious that Black has a fine concentration of pieces around the white
king. But where is the mate? Players with a sharp tactical vision will have no
trouble spotting the finish.} 1... Bg2+ 2. Rxg2 Qf1+ 3. Rg1 Ng3+ $1 {The key
idea.} 4. hxg3 Qh3# *

[Event "World Amateur Team Championship "]
[Site "?"]
[Date "2018.02.18"]
[Round "4"]
[White "FM Brandon Jacobson"]
[Black "Grant Xu"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2450"]
[BlackElo "2395"]
[Annotator "Xu, Grant"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[SourceDate "2018.04.07"]

1. Nf3 b5 2. e4 Bb7 3. Bxb5 Bxe4 4. O-O Nf6 5. d4 e6 6. c4 Be7 7. Nc3 Bb7 8. d5
O-O 9. Bf4 Ne8 10. Ba4 d6 11. Be3 e5 12. c5 dxc5 13. Nxe5 Nf6 14. Nc6 Nxc6 15.
dxc6 Ba6 16. Re1 Rb8 17. Bf4 Rb4 18. Be5 Bd6 19. Bxd6 cxd6 20. b3 d5 {[#]} 21.
Qf3 Bc8 22. h3 Qd6 23. Rac1 a6 24. Red1 Be6 25. Qe2 Rh4 {[#]} 26. Kf1 (26. Qxa6
Ng4 27. Qd3 Qh2+ 28. Kf1 Nxf2 29. Kxf2 Rf4+ 30. Ke1 Qg1+ 31. Kd2 Qxg2+ 32. Ne2
Rd4 33. Qxd4 cxd4 34. c7 Qe4 35. Bb5 Bf5 36. Ke1 Qh1+ 37. Kd2 Qh2 38. Ke1 Rc8
39. Nxd4 Qg3+ 40. Kd2 Qf4+ 41. Ke1 Rxc7 42. Rxc7 Qxc7 43. Nxf5 Qe5+ 44. Be2
Qxf5 {[#]}) 26... Rf4 27. Ke1 Rd4 28. c7 Bf5 29. Qe5 Rd3 30. f3 d4 31. Qxc5 h5
32. h4 Rxd1+ 0-1

[Event "World Amateur Team Championship"]
[Site "?"]
[Date "2018.02.19"]
[Round "4"]
[White "GM Oliver Barbosa"]
[Black "Josue Velazquez Martinez"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2647"]
[BlackElo "2286"]
[Annotator "Barbosa, Oliver"]
[PlyCount "65"]
[EventDate "2018.??.??"]
[SourceDate "2018.04.07"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. b3 Bd6 7. Bb2 b6 8. Nbd2
Bb7 9. O-O O-O 10. Ne5 (10. Qe2 Qe7 11. Rfd1 Rfd8 12. Rac1 c5) 10... c5 11. f4
Ne4 12. cxd5 Nxd2 13. Qxd2 Bxd5 (13... exd5 14. Rf3 cxd4 15. Rh3 h6 16. Nxd7
Qxd7 17. Rg3 f6 18. Bxd4 Bc5) 14. e4 Bb7 15. d5 Bxe5 16. fxe5 exd5 17. exd5
Bxd5 {[#]} 18. Bxh7+ (18. Bf5 Be6 (18... Bc6 19. Rad1 Qe7 20. Bxd7 Rfd8 21.
Bxc6 Rxd2) 19. Rad1 Bxf5 20. Rxf5) 18... Kxh7 19. Qxd5 Qe7 20. Rf3 Qe6 21. Rh3+
Kg8 22. Qe4 f5 23. Qh4 Kf7 24. Qh5+ Ke7 (24... Qg6 25. e6+) 25. Qg5+ Ke8 26.
Qxg7 Rg8 27. Rh8 {[#]} Rxh8 28. Qxh8+ Nf8 29. Rd1 Qe7 30. Qh6 Qe6 31. Qh4 Qe7
32. Qa4+ Kf7 33. Qf4 {[#]} 1-0

[Event "World Amateur Team Championship"]
[Site "?"]
[Date "2018.02.18"]
[Round "3"]
[White "FM Ethan Li"]
[Black "GM Alexander Fishbein"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "2371"]
[BlackElo "2546"]
[Annotator "Fishbein, Alexander"]
[PlyCount "86"]
[EventDate "2018.??.??"]
[SourceDate "2018.04.07"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. e3 O-O 5. Be2 c5 6. d5 e6 7. Nc3 exd5 8. cxd5
Re8 9. Nd2 d6 10. O-O Na6 11. e4 Nc7 12. Re1 Bd7 13. a4 a6 14. f4 (14. Bf3 b5
15. e5) 14... b5 15. Bf3 b4 16. Ncb1 (16. Ne2) 16... h5 17. h3 {[#]} Ng4 18. e5
Qh4 19. hxg4 hxg4 20. g3 Qxg3+ 21. Bg2 Qxf4 (21... dxe5) 22. Nf1 Qd4+ 23. Qxd4
cxd4 24. Bd2 (24. e6 fxe6 25. dxe6 Nxe6 (25... Rab8) 26. Bxa8 Rxa8 {[#]} 27.
Nbd2 (27. a5 d3 28. Nbd2 Bd4+ 29. Kh2 Rf8 30. Nb3 Rf2+ 31. Kg3 Re2 32. Rd1 Be5+
) 27... Ng5 {[#]} 28. Kg2 Be5 29. Nc4 (29. Rxe5 dxe5 30. Nc4) 29... Bc6+ 30.
Kg1 (30. Kf2 g3+) 30... Nh3#) 24... Bxe5 25. Bxb4 Rab8 26. Ba5 Rxb2 27. Nbd2 (
27. Bxc7 Bh2+) 27... Rc2 28. Rac1 d3 29. Bxc7 Bd4+ 30. Kh1 Rxe1 31. Rxe1 Rxc7
32. Re4 Be5 33. Nc4 f5 34. Nxe5 fxe4 35. Nxd7 {[#]} d2 36. Nf6+ Kf7 37. Nxd2 e3
38. Nfe4 e2 39. Nxd6+ Kf8 40. N6e4 e1=Q+ 41. Nf1 Rf7 42. Neg3 Qf2 43. Ne4 Rh7+
0-1

[Event "World Amateur East"]
[Site "?"]
[Date "2018.02.19"]
[Round "?"]
[White "IM Norowitz, Yaacov"]
[Black "Zhang, Alan"]
[Result "0-1"]
[ECO "D02"]
[Annotator "Lawrence, Al"]
[PlyCount "94"]
[EventDate "2018.??.??"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. c3 Nc6 6. Nbd2 Be7 7. h3 Bd6 8. dxc5
Bxc5 9. Bd3 Bd6 10. Bxd6 Qxd6 11. e4 Bd7 {It seems bettter to castle
immediately.} (11... O-O 12. Qc2 (12. Qe2 e5 $11) 12... h6) 12. Qe2 dxe4 13.
Nxe4 Nxe4 14. Bxe4 O-O-O 15. O-O {White has an edge.} f6 {And after this,
White should be winning.} 16. Rfd1 {16. a4 or 16. b4 also seem natural.} (16.
a4) (16. b4) 16... Qc7 17. Bxc6 ({But here 17. a4 seems much more likely to
win.} 17. a4) 17... Qxc6 18. Rd4 Kb8 (18... Qb5 19. Qe4 e5 20. Rd5 Qb6) 19.
Rad1 e5 20. Rd6 Qc7 21. Qd3 Kc8 22. c4 (22. Qc2) 22... Bc6 (22... Be6 23. c5
Rxd6 24. cxd6 Qc6 {It's hard to see how White forces things.}) 23. c5 (23. Qf5+
Kb8 24. Rxd8+ Rxd8 25. Rxd8+ Qxd8 26. Qxh7 Qd1+ 27. Kh2 Qd7 {And whatever else
is true, White has a pawn, and ... Bxf3 would be a mistacke.} 28. Qc2 Bxf3)
23... e4 $1 $11 24. Rxd8+ Rxd8 25. Qxd8+ Qxd8 26. Rxd8+ Kxd8 27. Nd4 Bd7 28.
Kh2 f5 (28... Ke7) 29. h4 Ke7 30. Kg3 Kf6 31. Kf4 g6 {Here Black offered a
draw, and the position seems balanced. But the IM evidently judges the
position is complicated enough to keep trying.} 32. g4 fxg4 33. b4 a6 34. Ne2
h5 35. Nc3 Bf5 36. a4 (36. Nxe4+ Bxe4 37. Kxe4 g5 38. hxg5+ Kxg5 39. a4 h4 40.
f4+ Kf6 41. Ke3 Kf5 42. b5 axb5 43. axb5 h3 44. Kf2 Kxf4 45. c6 g3+ 46. Ke2
bxc6 47. b6 $1 h2 48. b7 h1=Q 49. b8=Q+ Ke4 $11) 36... g5+ 37. hxg5+ Kg6 38. b5
axb5 39. axb5 h4 {[#]} 40. Nd5 $2 (40. c6 $11 bxc6 41. b6 e3 42. fxe3 Bc8 43.
b7 (43. Ne4 $11 g3 44. Kf3 Bg4+ 45. Kg2 Bc8 46. Kf3 Bg4+ 47. Kg2) 43... Bxb7
44. Kxg4 h3 45. Kxh3 Kxg5) 40... g3 $1 41. fxg3 $2 (41. Ne3 gxf2 42. c6 b6 43.
c7 h3 44. Kg3 Kxg5 45. Kxf2 Bc8 46. Kg3 Kf6 47. Kh2) 41... h3 42. c6 bxc6 43.
b6 Bc8 44. Ne7+ Kf7 45. Nxc8 h2 46. Nd6+ (46. b7 h1=Q 47. b8=Q (47. Nd6+ Ke6 (
47... Kg6 $2 48. b8=Q Qf3+ 49. Ke5 Qxg3+ 50. Kxe4 $11) 48. b8=Q Qf3#) 47...
Qf3+ 48. Ke5 Qxg3+) 46... Ke6 (46... Kg6 47. b7 h1=Q 48. b8=Q Qf3+ 49. Ke5
Qxg3+ 50. Kxe4 $11) 47. b7 h1=Q {[#]} 0-1

[Event "2018 U.S. Amateur Team West"]
[Site "?"]
[Date "2018.02.18"]
[Round "4"]
[White "Cartegena, Omar"]
[Black "Kavutskiy, Kostya"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2385"]
[BlackElo "2433"]
[Annotator "Kavutskiy, Kostya"]
[SetUp "1"]
[FEN "7r/5pk1/1q2p2n/3pPp1p/2p2P1P/1rP1N1PK/RP2Q1R1/8 b - - 0 37"]
[PlyCount "25"]
[EventDate "2009.02.08"]
[SourceDate "2009.02.28"]

{[#] Black has a clear strategic advantage here, with a target on b2 as well
as White's king, if the heavy pieces could ever make it to the 1st or 2nd
ranks.} 37... Ng4 $1 {The right idea, but bad execution afterwards. When I
made this move, I already had my 39th move and its consequences in mind.} 38.
Nxg4 hxg4+ 39. Kh2 d4 $2 {This was the idea behind Ng4, open up lines and
threaten Rxh4 in many positions.} (39... Rd8 $19 {[%cal Gd5d4] followed by d4
is much stronger compared to the game and essentially winning, White's king is
too weak.}) 40. Qxc4 (40. cxd4 Qxd4 $19 {is hopeless, Black already threatens
Rxh4+ and Rh3 mate!}) 40... dxc3 41. bxc3 Rb1 {My idea was to threaten Qe3 and
Rxh4+, mating. Or to play Rd8-Rdd1 and mate White along the first rank.} 42.
Qd4 $1 {The only move.} Qb5 43. Ra7 $1 {After this fantastic move White has
enough play for a draw. The idea is to keep Black's queen unable to enter the
kingside in view of perpetual ideas starting with Rxf7+.} (43. c4 Rxh4+ ({
Or just} 43... Qb3 $19 {[%cal Gh8h4] and White has no way to stop Rxh4! In
fact it is a forced Mate in 5 from here.}) 44. gxh4 Qb3 $19) 43... Rc1 ({
The key line is} 43... Qf1 44. Rxf7+ Kg6 45. Rf6+ Kh5 46. Qg1 $11 {and Black
has no win. Without the king blocking the rook, Black would have Rxh4+ and
Qxf4+, winning, but Rxf7 saves the game for White.}) 44. Qd6 Re8 {I did my
best, but White finds a way to get in and force a perpetual.} 45. Qc7 Rf8 46.
Qe7 Qb1 47. Qg5+ Kh7 48. Qh5+ Kg7 49. Qg5+ Kh7 1/2-1/2

[Event "2018 U.S. Amateur Team West"]
[Site "?"]
[Date "2018.02.19"]
[Round "6"]
[White "Pan, Kevin"]
[Black "Kavutskiy, Kostya"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2130"]
[BlackElo "2433"]
[Annotator "Kavutskiy, Kostya"]
[SetUp "1"]
[FEN "2k3rr/1bq1bp2/p1n1p3/1pppPnpp/3P1P2/2P3PP/PP2NBBN/R2Q1R1K w - - 0 18"]
[PlyCount "18"]
[EventDate "2009.02.08"]
[SourceDate "2009.02.28"]

{[#]} 18. dxc5 $2 {Allowing a nice but fairly straightforward combination.} (
18. fxg5 Bxg5 $132 {was necessary, where Black seems better dynamically.})
18... gxf4 19. gxf4 Rxg2 $1 {This is my favorite sacrifice in chess, it almost
always works!} 20. Kxg2 Rg8+ 21. Kh1 (21. Ng3 Rxg3+ $1 22. Bxg3 Ne3+ $19 {
among other lines, is crushing.}) 21... d4 $1 {The point of the combination -
Black's bishop on b7 opens up against White's king to decisive effect.} 22. Nf3
{The only way to plug the diagonal.} Nxe5 23. Neg1 Nxf3 24. Nxf3 Qxf4 25. Be1
Ng3+ 26. Bxg3 Qxg3 {After White played 18.dxc5, I was able to calculate the
forced line until this position. Always nice to see your original line take
place on the board and end with the opponent's resignation!} 0-1

[Event "2018 USAT North"]
[Site "?"]
[Date "2018.02.17"]
[Round "5"]
[White "Do, Vincent"]
[Black "Betaneli, Alex"]
[Result "0-1"]
[ECO "C79"]
[WhiteElo "2200"]
[BlackElo "2300"]
[Annotator "Betaneli, Alex"]
[PlyCount "116"]
[EventDate "2018.??.??"]

{This was the final round that decided first place. Wisconsin Chess Academy 
(Erik Santarius, Alex Betaneli, Hersh Singh) had white on bards 1 and 3
against Insert Team Name Here (Jacob Furfine, Vincent Do, Nicholas
Bartochowski, Rishi Narayanan). Our tentative plan was to hold on board three
and to press on remaining boards.} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5.
c3 Bd7 6. O-O g6 7. d4 Bg7 8. Re1 Nf6 9. Nbd2 O-O 10. h3 Re8 11. Bc2 Qe7 12.
Nf1 Qf8 13. Ng3 Bh6 {I was familiar with this idea from Caruana--Andreikin 
(see below), but played the move a bit too early.} (13... Rad8 14. d5 Ne7 15.
Nh2 Bh6 $1 16. Qf3 Bxc1 17. Raxc1 Qg7 18. Qe3 Nh5 $1 19. Nxh5 gxh5 20. Kh1 f5 {
with a fine position for Black in Caruana, F (2774)-Andreikin,D (2713), Moscow
2013}) 14. Bd2 Rad8 15. d5 Ne7 16. c4 Bxd2 17. Qxd2 Qg7 {[#] ***INSERT DIAGRAM
HERE*** Position resembles the King's Indian Defense scenario: Whtie has more
space and should play on the Q-side, Black's chances are on the K-side. There
are several differences with the normal KID: a pair of B's were traded,
White's Knights are on the K-side, White has commited to h3, Black's R is on
e8 and the Q is on g7. This net result is a slower game with many nuances that
are quite distinct from the KID. Interestingly, I do not play KID for Black,
but have faced it often with with White. Conversely, my opponent doesn't see
KID as White, but plays it regularly with Black. At this point it was clear
that boards 1 and 3 would draw their games, while our team should win on board
4.} 18. b4 Rf8 {in all likelihood, this is too slow, unless the idea is to
play Nh5 next} ({Andreikin's idea} 18... Nh5 $1 {works well here. During the
game I wasn't positive about the evaluation after} 19. Nxh5 (19. Nf1 Nf4 {
Black is in great shape}) 19... gxh5 20. Kh2 f5 21. exf5 Bxf5 22. Bxf5 Nxf5 {
with a rather unclear position. Specifically, after} 23. Qg5 Qxg5 24. Nxg5 Nd4
25. Rac1 {Black needs to be somewhat careful, even if objectively White cannot
claim much of a pull.}) 19. c5 Ne8 20. a4 h6 {Black is trying to play f5 under
ideal circumstances, but this is too optimistic} 21. cxd6 {this comes too soon
as the tension favors White} cxd6 22. Bd3 f5 23. b5 f4 {this is a very
commital decision. I thought the potential K-side attack would be dangerous
and put White under pressure. Although objectively speaking this is too
optimistic, in the upcoming mutual time trouble White needs to be more careful
than Black.} ({During the game I realized that after} 23... axb5 24. Bxb5 Bxb5
25. axb5 Nf6 {I won't be in any danger. Neither side can realistically hurt
the opponent. Given that Kevin Li was definitely winning on board 4, it would
have been a wise decision to go for this safe line.}) 24. Nf1 axb5 25. Bxb5 Nf6
26. Qb4 Bxb5 27. Qxb5 Rd7 28. a5 {Vincent correctly decides to liquidate the
Q-side and play against the d6 weakness.} g5 29. a6 bxa6 30. Rxa6 Ng6 31. Qb4
Qe7 32. N1d2 Ne8 {this was another difficult decision. I saw that the
immediate g4 would distract White from the Q-side play, but I wanted to play
h5 before playing g4.} 33. Qa4 Rf7 {this move felt natural during the game,
but in retrospect it looks illogical} (33... Rc7 {was a better way to go. Both
the 8th and the 7th rank stay protected and it is hard to see how White could
enter with his Rooks}) ({the point of Qa4 is that after} 33... h5 34. Nxg5 {
White wins}) 34. Rc1 Kg7 35. Rc8 Nf6 36. Rcc6 Ne8 37. Nc4 {both of us were
aiming for the same position. My opponent calculated a bit further than I did.}
h5 38. Nb6 ({computer points out a rather nice geometric win for White:} 38.
Rc8 g4 39. Rxe8 Qxe8 40. Nxd6 {but neither player was looking for something
like this with just a few minutes remaining}) 38... g4 {had I forseen
Vincent's response, I would not have played this move} (38... Rd8 {was a way
to bail-out} 39. Nc8 Qf6 40. Qa3 Rfd7 {and Black defends well enough. If
needed the Ng6-h8-f7 is available.}) 39. Nxd7 gxf3 40. Nc5 {this came as an
extremely unpleasant surprise} Nf8 {realistically, the only way to continue}
41. Nd3 fxg2 42. Qd1 {this turns out to be a substantial mistake} ({after the
strongest} 42. Ne1 {Black doesn't have} f3 {because after} 43. Rc3 $1 {the key
pawn falls} (43. Nxf3 Ng6 (43... Rxf3 44. Ra7 $1) 44. Qa3 {is a lot less clear
as Black has a lot of play after} Nf4)) 42... f3 {now Black is in charge} 43.
Ne1 Qh4 44. Nxf3 Qxh3 45. Nh2 {[#] ***INSERT DIAGRAM*** We each had only about
a minute left at this point. Although position might look decisively better
for Black, computer finds defensive resources for White.} Rf4 {the move is
logical, but White has a strong counterpunch} ({as often happens, the right
idea is to bring in another attacker. After} 45... Ng6 {position is really
diffcult to play for White. For example, the logical} 46. Rab6 {is met by} Nf4
{and White struggles} (46... Nh4 47. Rb3 $1)) (45... Rxf2 46. Kxf2 Qxh2 47. Qg1
) 46. Ra7+ Kg8 (46... Kg6 47. Qa1) (46... Kh8 47. Qc1) 47. f3 {effectively,
the losing blunder} ({given more time, Vincent would have found} 47. Qc1 {
and White again takes control of the game}) 47... Rh4 48. Kf2 Qxh2 49. Qg1 Qf4
50. Kxg2 {both of us thought that Black's advantage was decisive, so we were
just going through the motions. Yet, position still has some fight left.} Kh8 (
50... Nf6 {right away would have ended the game}) 51. Rc2 ({after} 51. Ra8 $1 {
Black has no better than the perpetual check}) 51... Nf6 (51... Rg4+ {was
decisive}) 52. Ra3 ({computer's} 52. Rf7 {suddenly leaves the game complicated,
although Black is certainly better after} Qh6) 52... Nxe4 {the final tactical
sequence is quite pleasing} 53. fxe4 Rg4+ 54. Kh1 Qxe4+ 55. Rg2 Rh4+ 56. Qh2
Qb1+ 57. Rg1 Rxh2+ 58. Kxh2 Qb2+ 0-1

[Event " 2018 USATS"]
[Site "?"]
[Date "2018.02.25"]
[Round "4"]
[White "Eugene, Yanayt"]
[Black "Benjamin, Moon"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2315"]
[BlackElo "2385"]
[Annotator "Burrus, Tony"]
[PlyCount "94"]
[EventDate "2018.??.??"]

1. d4 {The starting move of a crucial matchup between two a National Master
and a Fide Master.} Nf6 2. c4 g6 3. Nc3 Bg7 {The King's Indian Defense. This
Opening is a favorite of none other than GMs Garry Kasparovs and Hikaru
Nakamura} 4. e4 d6 5. Nf3 O-O 6. Be2 Bg4 $5 {[#] An interesting alternate line
that GM Shakriyar Mamedyarov used to employ upon his opponents back in 2006
and 2007.} (6... e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12.
Bf2 g5 {Is the main line}) 7. Be3 Nfd7 8. Rc1 (8. Ng1 Bxe2 9. Ngxe2 e5 10. O-O
exd4 11. Bxd4 Nf6 12. f3 Nc6 13. Bf2 Re8 14. Qd2 h5 15. Rad1 Ne5 16. b3 a5 17.
Kh1 a4 18. Nxa4 Nxc4 19. bxc4 Rxa4 20. c5 Ra6 21. Nc3 Qc8 22. Qf4 Nd7 23. Nd5
c6 24. Ne3 Be5 25. Qg5 Bf6 26. Qg3 Nxc5 27. Nc4 Qe6 28. Qxd6 Be7 29. Qxe6 Nxe6
30. Rd7 b5 31. Ne5 c5 32. g3 c4 33. f4 Rxa2 34. f5 gxf5 35. exf5 Nc5 36. Rd5
Ne4 37. Bd4 b4 38. Nd7 f6 39. Re1 c3 40. Rxe4 Ra1+ 41. Kg2 c2 42. Be3 b3 43.
Rb5 Re1 44. Nxf6+ Bxf6 45. Rxe8+ Kf7 46. Rc8 Rxe3 47. Rb7+ Be7 48. Kf2 Rd3 49.
Rcc7 Kf6 50. Ke2 Rd1 51. Rb6+ Kxf5 52. Rxb3 c1=Q 53. Rb5+ Kg6 54. Rxc1 Rxc1 55.
Kf3 Rc2 56. h3 Rc3+ 57. Kg2 Bd6 58. g4 h4 59. Rb6 Rd3 60. Kf2 Kg5 61. Ke2 Rd5
62. Rb7 Kf4 63. Rd7 Kg3 64. g5 Re5+ 65. Kd3 Re6 66. Kd4 Rg6 67. Ke4 Bb8 68.
Rd3+ Kg2 69. Kf5 Rg8 70. g6 Bg3 71. Kf6 Ra8 72. g7 Kxh3 73. Kf7 Ra7+ 74. Kg6
Ra8 75. Kh7 Kg2 76. Rd2+ Bf2 77. Rd3 Ra7 78. Kh8 {1/2-1/2 (78) Kramnik,V (2788)
-Mamedyarov,S (2742) Moscow 2008}) 8... e5 9. d5 a5 10. Qd2 {According to my
database this move was played only once.} f5 (10... Na6 11. h4 Nac5 12. h5 Bxh5
13. Ng5 Bxe2 14. Kxe2 Nf6 15. f3 Ncd7 16. g4 Re8 17. Rh2 Nf8 18. Rch1 h5 {
1/2-1/2 (18) Pragt,A-Boersma,J (2080) Sneek 2013}) 11. Bg5 Qe8 12. Bh6 Nc5 13.
Bxg7 Kxg7 14. h3 Bxf3 15. Bxf3 f4 16. h4 h5 17. Ke2 Nba6 18. Rcg1 Kh7 19. Rh3
Qf7 20. Kf1 Rg8 21. Qe2 a4 22. g4 fxg3 23. Rgxg3 Raf8 24. Rg5 Nb4 25. Bxh5 Nbd3
26. Rf5 Qd7 27. Bxg6+ Rxg6 28. Rxd3 Nxd3 29. Qxd3 Qg7 30. Qf3 Rg1+ 31. Ke2 Rxf5
32. exf5 Qg4 33. Ne4 Kg7 34. f6+ Kf8 35. Qxg4 Rxg4 36. Ng5 Rxh4 37. b3 a3 38.
Ne6+ Kf7 39. Nxc7 Rh1 40. Nb5 Ra1 41. Nxa3 Rxa2+ 42. Ke3 Rxa3 43. c5 Rxb3+ 44.
Ke4 dxc5 45. Kxe5 Rd3 46. f4 c4 47. Ke4 Rxd5 {Kd4} 0-1

[Event "World Blitz Cup"]
[Site "Moscow RUS"]
[Date "2007.11.22"]
[Round "35"]
[White "Magnus Carlsen"]
[Black "Alexey Shirov"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2714"]
[BlackElo "2739"]
[Annotator "Pandolfini, Bruce"]
[PlyCount "53"]
[EventDate "2007.11.21"]
[EventType "blitz"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. c3 d6 {[#]} 8.
d3 (8. d4) (8. a4) 8... O-O 9. Bg5 (9. Qe2) (9. a4) 9... h6 10. Bh4 g5 11. Bg3
(11. Nxg5 hxg5 12. Bxg5) 11... Bg4 (11... Bd7) (11... Bb7) 12. Nbd2 Nh5 (12...
Bb6) 13. Re1 Nxg3 14. hxg3 Ne7 15. Nf1 Ng6 16. d4 Bb6 17. Ne3 Bxf3 18. gxf3
exd4 19. cxd4 Qf6 20. Ng4 (20. Nd5) 20... Qg7 21. e5 Kh8 22. Kg2 dxe5 (22... h5
) 23. Rh1 (23. dxe5 Rad8) 23... Bxd4 24. Rxh6+ Kg8 25. Qd3 e4 (25... Ne7 26.
Nf6+) 26. Qxe4 Nh8 27. Rah1 1-0

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "PROBLEM I"]
[Black "Mating Net"]
[Result "0-1"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "rq6/6k1/1b6/8/8/8/2R2P2/1Q3RK1 b - - 0 1"]
[PlyCount "3"]

{[#]} 1... Qg3+ 2. Kh1 Rh8# 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "PROBLEM II"]
[Black "Mating Net"]
[Result "0-1"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "8/5q2/6k1/5b2/8/8/2P5/RKR5 b - - 0 1"]
[PlyCount "1"]

{[#]} 1... Qb3# 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "PROBLEM III"]
[Black "Mating Net"]
[Result "0-1"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "2q5/1k6/8/4n3/8/8/5P2/2Q2R1K b - - 0 1"]
[PlyCount "3"]

{[#]} 1... Qh3+ 2. Kg1 Nf3# 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "PROBLEM IV"]
[Black "Mating Net"]
[Result "0-1"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "8/6r1/3k4/8/3B4/3b2q1/3N1RQ1/5nK1 b - - 0 1"]
[PlyCount "1"]

{[#]} 1... Qh2# 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "PROBLEM V"]
[Black "Mating Net"]
[Result "0-1"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "8/8/8/kn6/1q6/8/1QP5/1KR5 b - - 0 1"]
[PlyCount "3"]

{[#]} 1... Nc3+ 2. Ka1 Qa4+ 0-1

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "PROBLEM VI"]
[Black "Mating Net"]
[Result "0-1"]
[Annotator "Pandolfini, Bruce"]
[SetUp "1"]
[FEN "8/5kq1/8/8/4n1Q1/4p3/P1P5/1K5R b - - 0 1"]
[PlyCount "3"]

{[#]} 1... Nd2+ 2. Kc1 Qa1# 0-1

[Event "Kolkata Open"]
[Site "Kolkata IND"]
[Date "2012.12.11"]
[Round "9"]
[White "Sunil Dhopade Swapnil"]
[Black "Daniil Lintchevski"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2438"]
[BlackElo "2553"]
[Annotator "Naroditsky, Daniel"]
[PlyCount "151"]
[EventDate "2012.12.03"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc5 8.
Qxd8+ Kxd8 9. Ne5 Ke7 10. Be2 Nbd7 11. Nc4 Ra7 12. Nbd2 b5 13. Na5 Rc7 14. a4
bxa4 15. Ndc4 Nb8 16. Rxa4 Bd7 17. Ra1 Bb5 18. b3 Nd5 19. Bb2 f6 20. Rfc1 Rhc8
21. Bf1 Nd7 22. Na3 Bxf1 23. Kxf1 Bb4 24. Rxc7 Rxc7 25. N3c4 Nc5 26. Bd4 e5 27.
Bxc5+ Rxc5 28. e4 Nf4 29. g3 Ne6 30. Ra4 Bxa5 31. Nxa5 Nd4 32. Ra2 h5 33. h4 g5
34. Ra1 g4 35. b4 Rc7 36. Rb1 Rc3 37. Ra1 Rc7 38. Rb1 Rc2 39. Nb3 Nf3 40. Ra1
Rc4 41. Nc5 Rxb4 42. Rxa6 Rb1+ 43. Ke2 Rb2+ 44. Kf1 Rc2 45. Ra7+ Kd6 46. Nd3
Nd2+ 47. Ke1 Nxe4 48. Ra4 Rc3 49. Rxe4 Rxd3 50. Ra4 Ke6 51. Ra8 Kf7 52. Ra7+
Kg6 53. Re7 {[#]} Rd8 54. Ke2 Rh8 55. Ke3 Kf5 56. Ra7 Rb8 57. Rh7 (57. Ra3 Rb6
58. Rc3 Ke6 59. Ra3 f5 60. Rc3 (60. Ra5) 60... Rb4) 57... Rb3+ 58. Ke2 Ke4 {[#]
} (58... Kg6 59. Ra7 f5 60. Ra6+) 59. Rxh5 Rb2+ 60. Kf1 f5 (60... Kf3 61. Rf5+)
61. Kg1 (61. Rg5) 61... f4 62. gxf4 exf4 63. Ra5 Kf3 (63... g3 64. fxg3 fxg3
65. Ra3) (63... Rb1+ 64. Kg2 f3+ 65. Kh2 (65. Kg3 Rg1+ 66. Kh2 Rg2+) 65... Rf1
66. Ra2) 64. Ra3+ Ke2 (64... Ke4) 65. Kg2 {[#]} Ke1 (65... f3+) (65... Rb1 66.
Ra2+ (66. h5 f3+) 66... Kd3 67. Ra4 f3+ 68. Kg3 (68. Kh2 Rf1 69. Kg3 (69. Ra2
Ke4)) 68... Rg1+ 69. Kf4 Rg2 70. Ra2 g3 71. Kxf3 (71. Ra3+ Ke2) 71... Rxf2+ 72.
Rxf2 gxf2 73. Kxf2 Ke4) 66. Ra1+ Ke2 67. Ra4 f3+ (67... g3 68. Rxf4) 68. Kg3
Kf1 (68... Rb1 69. Ra2+) 69. Ra1+ Ke2 70. h5 Rb5 71. Rh1 Rb7 72. h6 Rh7 73. Rh2
Kf1 74. Kxg4 Kg1 75. Kg3 Rh8 76. h7 1-0

[Event "Norway Chess 2nd"]
[Site "Stavanger"]
[Date "2014.06.10"]
[Round "7"]
[White "Giri, Anish"]
[Black "Karjakin, Sergey"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2752"]
[BlackElo "2771"]
[Annotator "Naroditsky, Daniel"]
[PlyCount "262"]
[EventDate "2014.06.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NOR"]
[EventCategory "21"]
[SourceTitle "CBM 161"]
[Source "ChessBase"]
[SourceDate "2014.07.16"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc7 7. a3 g6 8. h4
h6 9. d3 Bg7 10. Be3 Ne6 11. O-O O-O 12. Na4 Ncd4 13. Rc1 Qd6 14. Nd2 Bd7 15.
Bxd4 Qxd4 16. Nc3 Rab8 17. Nc4 Bc6 18. Bxc6 bxc6 19. e3 Qd7 20. Qc2 Rfd8 21.
Rfd1 h5 22. Qe2 Rb3 23. Na5 Rb6 24. Rc2 Qc7 25. Nc4 Rb3 26. Nd2 Rb7 27. Nc4 Rb3
28. Rdc1 Rb7 29. Rd2 Rb3 30. Qd1 Rdb8 31. Ne4 Qd8 32. Nc3 Qc7 33. Kg2 Qd8 34.
Rdc2 R3b7 35. Qe2 Rd7 36. Rd2 Rb3 37. Qd1 Rdb7 38. Qf3 Qd7 39. Rcc2 Rb8 40. Qd1
Qd8 41. Kh2 Nf8 42. Ne4 Ne6 43. Kg1 R8b7 44. Kh2 Rd7 45. Nc3 Rdb7 46. Qf3 Qc7
47. Ne2 Rb8 48. Qe4 Rd8 49. Nc3 Nf8 50. Kg2 Rdb8 51. Na4 R3b5 52. Rd1 Bf6 53.
Rb1 Nd7 54. Rh1 Nb6 55. Naxb6 axb6 56. Rb1 Qd7 57. b3 Rd8 58. Rd2 Bc3 59. Rdd1
Bf6 60. Kg1 Qc8 61. Kf1 Rd5 62. Ke2 Qd7 63. Qf3 Qe6 64. Qg2 Qg4+ 65. f3 Qe6 66.
f4 Bg7 67. Qf3 Qh3 68. Rh1 Qd7 69. e4 Rd4 70. Rhd1 Qh3 71. Rh1 Qd7 72. Rhf1 f5
73. e5 e6 74. Rfd1 Qb7 75. a4 Ra5 76. Nxa5 bxa5 77. Rdc1 Bf8 78. Rc3 Kf7 79.
Qh1 Ke8 80. Rc4 Kd7 81. Qe1 Qb6 82. Qc3 Be7 83. Rc1 Rd5 84. Qc2 Kc7 85. Rd1 Rd4
86. Qa2 Rd5 87. Rdc1 Kb7 88. Qa3 Qd8 89. Rd1 Rd4 90. Qc1 Qd5 91. Kf2 Qd8 92.
Qc3 Qb6 93. Ke2 Kc7 94. Rd2 Kb7 95. Kd1 Kc7 96. Kc2 Bf8 97. Kb1 Be7 98. Ka2 Bf8
99. Rd1 Be7 100. Rc1 Bf8 101. Qd2 Be7 102. R1c3 Bf8 103. Qf2 Kb7 104. Qg2 Be7
105. Qh1 Bf8 106. Qf1 Be7 107. Rc2 Bf8 108. Rd2 Be7 109. Qf2 Rd5 110. Qf3 Rd4
111. Rdc2 Bf8 112. R2c3 Be7 113. Qh1 Bf8 114. Rxd4 cxd4 115. Rc4 Bb4 116. g4
hxg4 117. h5 gxh5 118. Qxh5 c5 119. Qf7+ Ka6 120. Rc2 Qc6 121. Qg6 c4 122. Rxc4
Qg2+ 123. Kb1 Qf1+ 124. Rc1 Qxd3+ 125. Ka2 Qe2+ 126. Kb1 Qe4+ 127. Ka2 Qg2+
128. Ka1 Qd5 129. Ka2 Qg2+ 130. Kb1 Qd5 {[#]} 131. Rc4 (131. Ka2 Qg2+ 132. Kb1
Qe4+ 133. Ka2) 131... Bc3 0-1

[Event "PRO League KO Stage 2017"]
[Site "chess.com INT"]
[Date "2017.03.01"]
[Round "1"]
[White "Li, Ruifeng"]
[Black "Naroditsky, D."]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2577"]
[BlackElo "2646"]
[Annotator "Naroditsky, Daniel"]
[PlyCount "101"]
[EventDate "2017.03.01"]
[EventType "team (rapid)"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "The Week in Chess 1165"]
[Source "Mark Crowther"]
[SourceDate "2017.03.06"]
[WhiteTeam "Dallas Destiny"]
[BlackTeam "San Jose Hackers"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 b6 8. Qe2
a5 9. Nf1 Ba6 10. Bxa6 Nxa6 11. Ng3 O-O 12. O-O Re8 13. Bf4 Nf8 14. Nh5 Ng6 15.
Be3 Nc7 16. g3 a4 17. h4 a3 18. b3 Qd7 19. Qd2 cxd4 20. cxd4 Rec8 21. Bh6 gxh6
22. Qxh6 Ne8 23. Nh2 Bf8 24. Qe3 Kh8 25. Ng4 Qc7 26. Rac1 Qd8 27. Qf3 Rxc1 28.
Rxc1 Ra7 29. Nhf6 Rc7 30. Rxc7 Nxc7 31. Nxh7 f5 32. Ngf6 Bh6 33. Ng5 Kg7 34.
Nh5+ Kg8 35. Nf6+ Kg7 36. Qh5 Qh8 37. Nxe6+ Nxe6 38. Qxf5 Ngf8 39. Nh5+ Kg8 40.
Nf6+ Kg7 41. Nxd5 Qg8 42. Qf6+ Kh7 43. Qf5+ Qg6 44. Nf6+ Kh8 45. Qf3 Nxd4 46.
Qd5 Nde6 47. h5 Qb1+ 48. Kg2 Qxa2 49. Qb7 Qe2 {[#]} 50. Qf7 Nf4+ (50... Qf3+
51. Kg1 Qxf6 (51... Qd1+ 52. Kh2) 52. Qxf6+ Bg7 53. Qe7 a2 54. Qa7) 51. gxf4
1-0

[Event "Marshall Saturday Game 60"]
[Site "?"]
[Date "2012.09.22"]
[Round "2"]
[White "GM Michael Rohde"]
[Black "Michael Ainsworth"]
[Result "0-1"]
[WhiteElo "2549"]
[BlackElo "2097"]
[Annotator "Ainsworth, Michael"]
[SetUp "1"]
[FEN "5rk1/p4pp1/1p2p2p/6q1/2BPQn2/5P2/PP3P1P/6RK b - - 0 24"]
[PlyCount "3"]
[EventDate "2012.??.??"]

{[#]} 24... Nh3 25. Rxg5 Nxf2+ 0-1

