Saturday, February 17, 2018

Alan Lasser's Game of the Week

Yixin Li is currently the strongest player at the UMass Chess Club and he played in his first rated tournament last weekend, receiving the phenomenal provisional rating of 2461 by going 5-0 in a field where the highest rated foe was 2066.  Perhaps Mr. Elo has yet to peg him accurately, but in his last round game, Li's counterattack 22…Ne2, comes out of nowhere to turn around the game. 
Ian Dudley-Yixin Li
2/11/18
93rd Western Mass Championships
1.c4 c5 
3.d3 g6 
6.e4 e5 
 
 
[Event "2018 WMA Championships"]
[Site "Amherst, MA"]
[Date "2018.02.11"]
[Round "5"]
[White "Ian Dudley"]
[Black "Yixin Li"]
[Result "0-1"]
[ECO "A35"]
 
1.c4 c5 2.Nc3 Nc6 3.d3 g6 4.g3 Bg7 5.Bg2 d6 6.e4 e5 7.Nge2 Nge7 8.O-O O-O
9.h3 Be6 10.Kh2 Nd4 11.f4 f5 12.Be3 $6 { -0.25/18 } ( 12.fxe5 { +0.06/18 }
12...Bxe5
{ 12...dxe5 13. exf5 gxf5 14. Bxb7 Rb8 15. Bg2 Kh8 16. Rb1 f4 17. gxf4 Ng6
18. Nd5 Nxe2 19. Qxe2 Bxd5 20. cxd5 Nxf4 21. Qg4 Nxg2 22. Rxf8+ Qxf8 23.
Qxg2 Qd6 +0.10 Stockfish } 13.Bh6 Rf7 14.Bf4
{ 14. Qd2 Nxe2 15. Qxe2 Kh8 16. Qd2 Nc6 17. Rae1 Qd7 18. exf5 Rxf5 19. Nd5
Rxf1 20. Rxf1 Bf5 +0.55 Stockfish } 14...Qb6 15.Nxd4 cxd4 ) 12...Nec6 13.Nd5
Rb8 14.Rb1 $6 { -0.24/17 } ( 14.Nxd4 { +0.08/17 } 14...Nxd4 15.Bxd4 cxd4
16.exf5 Bxf5 17.a4 exf4 18.Nxf4
{ Stockfish thinks Black is winning by 0.10 after 18...Be5 19. Qd2 Kh8 20.
Rf2 Qg5 21. Raf1 Rf6 22. h4 Qh6 23. a5 Bd7 } ) ( 14.fxe5 Bxe5 15.Nxd4 Nxd4
16.exf5 Rxf5 17.Qd2 b5 18.Rxf5 Nxf5 19.Bf4 Kg7 20.Re1 Bxd5 21.Bxe5+ dxe5
22.Bxd5 { +0.07 Stockfish } ) 14...b5 15.a3 $6 { -0.58/17 } ( 15.fxe5
{ -0.25/16 } 15...dxe5 16.cxb5 Rxb5 17.Nxd4 cxd4 18.Bd2 fxe4 19.Rxf8+ Bxf8
20.dxe4 Rb7 21.Qa4 Nb8 22.b4 Rf7 ) ( 15.b3 bxc4 16.dxc4 Qa5 17.exf5 gxf5
18.fxe5 dxe5 19.Nec3 e4 20.Na4 Bxd5 21.cxd5 Nb4 { -0.17 Stockfish } )
15...Kh8 $6 { -0.23/15 } ( 15...bxc4 { -0.58/17 } 16.dxc4 Na5 17.Bxd4 cxd4
18.b3 Qd7
{ 18...Kh8 19. Ng1 Qd7 20. Re1 fxe4 21. Bxe4 g5 22. Nf3 gxf4 23. gxf4 Bh6 
-1.32 Stockfish } 19.h4 Kh8 20.Qd3 Rfc8 21.Kg1 ) 16.cxb5 Rxb5 17.Nec3 Rb8
18.Qa4 $6 { -1.00/18 } ( 18.b4 { -0.14/17 } 18...fxe4 19.dxe4 exf4 20.Rxf4 a5
{ 20...Ne5 21. Bxd4 cxd4 22. Ne2 d3 23. Rxf8+ Qxf8 24. Nef4 Bxd5 25. exd5
Rc8 26. Nxd3 Nxd3 27. Qxd3 Rc3 28. Qe4 Rxa3 -0.15 Stockfish } 21.bxc5 Rxb1
22.Qxb1 dxc5 23.Qf1 Ne5 24.Qa6 Qc8 25.Rxf8+ Qxf8 ) 18...fxe4 19.dxe4 Bxd5 $6
{ -0.07/20 } ( 19...exf4 { -0.78/18 } 20.Rxf4 Rxf4 21.Bxf4 g5 22.Be3 g4
23.hxg4
{ 23. Qd1 Ne5 24. Bf4 gxh3 25. Bxh3 Nef3+ 26. Kg2 Bxh3+ 27. Kxh3 Qc8+ -1.50
Stockfish } 23...Ne5
{ 23... Bxg4 24. Qa6 Be5 25. Nf4 Qg5 26. Ncd5 Nf3+ 27. Bxf3 Bxf3 28. Qxc6
Bxe4 -5.46 Stockfish } 24.Bf4 a5 25.g5 Bd7 26.Qd1 Bg4 27.Qf1 Ndf3+ 28.Bxf3
Nxf3+ 29.Kg2 Nxg5 30.Bxg5 Qxg5 31.Qf4 Qg6 32.b3 Be5 ) 20.Nxd5 Rb3 $6
{ +0.88/20 } ( 20...Ne7 { -0.07/19 } 21.Qc4 a5 22.b3
{ 22. Bd2 exf4 23. Nxf4 Nec6 24. Bc3 g5 25. Ne6 Nxe6 26. Qxe6 Bxc3 27. bxc3
Rxb1 28. Rxb1 Rf6 -0.08 Stockfish } 22...Nxd5
{ 22... Nb5 23. Nxe7 Qxe7 24. Qc1 exf4 25. Bxf4 Nd4 26. Qd2 Rb5 27. Bg5 Qe8
28. Bf4 Qe6 -0.32 Stockfish } 23.Qxd5 Ne2 24.Qc4 exf4 ) ( 20...exf4 21.Nxf4
Qa5 22.Qd1 Ne5 23.Qc1 Nb3 24.Qc2 Qb6 25.Nd5 Qb5 { -0.31 Stockfish } ) 21.Bxd4
$6 { -0.10/21 } ( 21.f5 { +0.88/20 } 21...a5
{ 21...gxf5 22. exf5 e4 23. Bxe4 Qe8 24. Nc3 Qb8 25. Bxc6 Nxc6 26. Qxc6
Bxc3 27. Bf4 Bd4 28. Bxd6 Rb6 29. Bxb8 Rxc6 30. Bf4 Rxf5 +0.82 Stockfish }
22.Rf2 gxf5 23.exf5 ) 21...Nxd4 22.Qxa7 $2 { -1.27/20 } ( 22.f5 { -0.14/20 }
22...a5
{ 22... Qg5 23. Nc3 Bf6 24. h4 Qh5 25. fxg6 Qxg6 26. Qd7 Rg8 27. Qh3 Bd8
28. h5 Qg5 29. Rf5 Nxf5 30. exf5 Qd2 31. f6 Bxf6   -1.83   Stockfish }
23.fxg6 hxg6 24.Rxf8+ Bxf8 25.Rf1 Rxb2 26.Qc4 Bg7 27.Rf7 Qe8 28.Qf1 g5 29.Ne7
Rb1 30.Qf2 Rb3 31.Ng6+ Kh7 32.Qf6 ) ( 22.fxe5 Bxe5 23.Rxf8+ Qxf8 24.Rf1 Bxg3+
25.Kg1 Qb8 26.Rf7 Rb7 27.Rxb7 Qxb7 28.Qe8+ Kg7 { -1.45 Stockfish } ) 22...Ne2
23.Rf3 $6 { -5.38/21 } ( 23.Qa4 { -3.22/19 } 23...Rxg3 ) ( 23.Rf2 exf4
24.gxf4 Nxf4 25.Nxf4 Be5 26.Kh1 Bxf4 27.Qa4 Re3 28.Qd1 Kg7 29.Rf3 Rxf3
30.Qxf3 Be5 { -1.88 Stockfish } ) 23...Rxf3 24.Bxf3 exf4 25.Qe7
{ 25.Be2 gets crushed by 25... fxg3+ 26. Kg2 Rf2+ 27. Kxg3 Qf8 28. Qxg7+
Kxg7 29. Rf1 Rxf1 30. Bxf1 Qxf1    -12.37    25.Nf4 Nf4 26.gf loses to
26... Qh4 27. Qxg7+ Kxg7 28. Rf1 Qxf4+ 29. Kg2 Qg5+ 30. Kf2 Qf6 31. Kg1 Qxb2 32. Rf2 Qxa3  -66.19     and 25.gf loses to 25... Qh4 26. Bg2 Qg3+ 27.
Kh1 Nxf4 28. Nxf4 Be5 29. Qe7 Qxf4 30. Qxf8+ Qxf8   -13.82 } 25...Qxe7
26.Nxe7 fxg3+ 27.Kg2 Nd4 28.Bg4 $6 { -6.21/25 } ( 28.Rf1 { -5.21/26 }
28...Be5 29.Nd5 Rb8 30.b4
{ 30. Rb1 Nxf3 31. Kxf3 Rf8+ 32. Ke2 Rf2+ 33. Kd3 g2 34. Ne3 Rxb2 -7.33
Stockfish } 30...Ra8 31.bxc5 dxc5 32.Kh1
{ 32. Bg4 Rxa3 33. Kg1 Ra2 34. Ne3 Ne2+ 35. Kg2 Nc3+ 36. Kf3 Nb5 -7.93
Stockfish } 32...Rxa3 33.Bg2 Rb3 34.Re1
{ 34. Nf6 Bxf6 35. Rxf6 c4 36. Bf1 c3 37. Rf8+ Kg7 38. Rc8 c2 39. Kg2 Rb1
40. Ba6 c1=Q 41. Rxc1 Rxc1 42. Kxg3 Kf6 -10.58 Stockfish } 34...c4 35.Rc1 Ne2
36.Rf1 c3 ) 28...Re8 $2 { -3.22/26 } ( 28...Be5 { -6.21/25 } 29.Rf1 Rb8
30.Rb1 c4 31.Nd5 Nc2 32.Nb4 Nxb4
{ 32...Rf8 33. Nc6 Ne3+ 34. Kg1 Bxb2 35. Re1 Bxa3 36. Rxe3 Bc5 37. Kg2 Bxe3
 -8.20 Stockfish } 33.axb4 Rxb4 34.Bd1 c3 35.Bc2 cxb2 36.Rf1 Rd4 37.Bb1 d5
38.exd5 Rxd5 ) 29.Nd5 Rxe4 $6 { -2.39/25 } ( 29...h5 { -3.22/25 } 30.Bd1 Rxe4
{ 30...h4 31. Bg4 Rxe4 32. Kh1 Kh7 33. a4 Nc6 34. Bf3 Rxa4 35. Nc3 Bxc3 36.
Bxc6 Rb4 37. Kg2 Bxb2 -5.17 Stockfish } 31.Kxg3 Nf5+ 32.Kf2 Bd4+ 33.Kf1 Re5
34.Nc3 Re3 35.Nb5 Rxh3 36.Nxd4 Rh1+ 37.Ke2 Nxd4+ 38.Kf2 Rh2+ 39.Ke3 Rh3+
40.Kf2 Kg7 41.a4 Nc6 42.b3 g5 43.Bf3 Ne5 44.Bg2 Rc3 ) 30.Kxg3 h5 31.Bd7 $2
{ -12.89/28 } ( 31.Nc3 { -2.39/23 } 31...Re8 32.Bd7 Rb8
{ 32...Rd8 33. Ba4 Be5+ 34. Kg2 Kg7 35. Nd5 c4 36. Bd1 Nf5 37. Kf1 Rf8 38.
Ke1 Ng3 39. Be2 Nxe2 40. Kxe2 Bd4 41. Rd1 Bxb2 -2.16 Stockfish } 33.Kf2
{ 33. a4 c4 34. Kg2 Rd8 35. Bb5 d5 36. Ra1 Nxb5 37. axb5 Rb8 -2.17
Stockfish } 33...c4 34.a4 Rd8 35.Bb5 Nxb5 36.axb5 d5 37.Kf3 ) 31...Re5 $2
{ -2.35/24 } ( 31...Be5+ { -12.89/28 } 32.Kg2
{ 32. Kf2 Re2+ 33. Kf1 Bg3 34. Ba4 Rf2+ 35. Ke1 Rxb2+ 36. Kd1 Rxb1+ -17.25
Stockfish } 32...Re2+ 33.Kg1
{ 33. Kf1 Bg3 34. Ba4 Rf2+ 35. Ke1 Rxb2+ 36. Kd1 Rxb1+ 37. Kd2 Ra1 38. Be8
Be1+ 39. Kd3 Rxa3+ -36.30 Stockfish } 33...Bh2+ 34.Kf1 Bg3 35.Ba4 Rf2+ 36.Ke1
Rxb2+ 37.Kd1 Rxb1+ 38.Kd2 Ra1 39.Be8 Be1+ 40.Kd3 Rxa3+ 41.Kc4 Nf3
{ 41...Kg7 42. Bb5 Kf7 43. Bd7 Ba5 44. Nf4 Nf3 45. Bb5 Bd2 46. Nxg6 Nd4 47.
Bd7 Kxg6 -50.77 Stockfish } 42.Kb5 Ne5 43.Kb6 c4 ) 32.Nc3 Re7 33.Bc8 Rc7
34.Ba6 Nf5+ 35.Kf2 $6 { -2.77/26 } ( 35.Kf4 { -2.00/23 } 35...Rf7
{ 35...Re7 36. Nd5 Re5 37. Bc4 Nh4 38. Kg3 g5 39. Kf2 Re4 40. b3 Bd4+ 41.
Kf1 g4 42. hxg4 hxg4 43. Re1 g3 44. Rxe4 g2+ 45. Ke2 g1=Q 46. Rxh4+ -1.76 
Stockfish } 36.a4 Ne7+ 37.Kg3 d5 38.Kg2 Bd4 39.Rf1 Nf5 40.Kh2 Ra7 41.Bb5 Be5+
42.Kg1 Bd4+ 43.Kh2 ) ( 35.Kg2 Re7 36.Bb5 Re3 37.a4 Rg3+ 38.Kf2 Bd4+ 39.Ke2
Bxc3 40.bxc3 Rxc3 41.Bd3 Nd4+ 42.Kd2 Ra3 { -1.59 Stockfish } ) 35...Ra7
36.Bd3 Bxc3 37.bxc3 Rxa3
{ The scoresheet I compiled as the game was being analyzed ends here, but
play continued for many moves as Black easily won the ending. } 0-1
 
 
Alan Lasser
 
 
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TOURNAMENT ON SATURDAY FEBRUARY 24, 2018

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