Komodo 10.3 vs. Stockfish 170102 16-core 60m+6s 100 games

[svempa]

Above each board is a dropdown picklist where you can select the game to view.

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[tpoppins]

Round 16
A08 - King's Indian Attack/Reti

Games 31 and 32 are two short, colorless draws. Not a good line for engine play.

Score: 13.5-15.5 (+2-4=23 ?3)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "31"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "A08"]
[Annotator "-0.07;-0.05"]
[PlyCount "35"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=37.4 plies; 19,383kN/s; 3,
024 TBAs; match-8.ctg B=38.3 plies; 18,538kN/s; 15,029 TBAs; match-8.ctg} 1. d3
{B 0} c5 {B 0} 2. g3 {B 0} Nc6 {B 0} 3. Bg2 {B 0} g6 {B 0} 4. Nf3 {B 0} Bg7 {
B 0} 5. O-O {B 0} d5 {B 0} 6. c4 {B 0} e6 {B 0} 7. Qc2 {B 0} b6 {B 0} 8. d4 {
B 0} Nxd4 {B 0 Both last book move} 9. Nxd4 {-0.07/34 56} cxd4 {-0.05/37 161}
10. cxd5 {-0.09/34 71} exd5 {-0.03/34 16} 11. e3 {-0.10/35 158} Ne7 {-0.20/35
81} 12. exd4 {-0.14/37 81} O-O {-0.06/38 181} 13. Bg5 {-0.09/37 73} Be6 {
0.00/39 74 (h6)} 14. Nc3 {0.00/39 141 (Qd2)} Qd7 {0.00/38 63} 15. Bxe7 {
0.00/38 54} Qxe7 {0.00/40 16} 16. Nxd5 {0.00/37 44} Bxd5 {0.00/42 64} 17. Bxd5
{0.00/41 39} Rac8 {0.00/42 14} 18. Qb3 {0.00/42 65 Draw accepted} 1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "32"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "A08"]
[Annotator "0.00;-0.14"]
[PlyCount "42"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=38.2 plies; 19,751kN/s;
91,408 TBAs; match-8.ctg B=37.8 plies; 20,172kN/s; 53,915 TBAs; match-8.ctg} 1.
d3 {B 0} c5 {B 0} 2. g3 {B 0} Nc6 {B 0} 3. Bg2 {B 0} g6 {B 0} 4. Nf3 {B 0} Bg7
{B 0} 5. O-O {B 0} d5 {B 0} 6. c4 {B 0} e6 {B 0} 7. Qc2 {B 0} b6 {B 0} 8. d4 {
B 0} Nxd4 {B 0 Both last book move} 9. Nxd4 {0.00/37 125} cxd4 {-0.14/32 39}
10. cxd5 {-0.06/34 17} exd5 {-0.08/32 56} 11. e3 {-0.07/36 63 (Bg5)} Ne7 {
-0.10/37 109} 12. exd4 {0.00/34 13} O-O {-0.12/35 68} 13. Bg5 {-0.01/38 68} h6
{-0.15/38 96} 14. Bxe7 {-0.16/34 12} Qxe7 {-0.07/38 49} 15. Nc3 {-0.05/38 50}
Bb7 {-0.06/39 91} 16. Nxd5 {-0.04/35 14 (Bxd5)} Qd7 {-0.02/38 130 (Qd6)} 17.
Qe4 {0.00/39 63} Rab8 {-0.04/40 87 (Qxd5)} 18. Ne7+ {0.00/41 115} Kh8 {0.00/42
107 (Kh7)} 19. Nc6 {0.00/43 76} Bxc6 {0.00/41 79 (Qxc6)} 20. Qxc6 {0.00/45 89}
Qxd4 {0.00/42 178 (Qxc6)} 21. Rab1 {0.00/43 98} Rbd8 {0.00/38 72 (Rfd8) Draw
accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 17
A00 - Dunst Opening/White Knights Tango?

The opening position after the book resembles a Petroff Defence, with a slight advantage for White. In game 33 a sharp tactical sequence led to a double-rook-and-pawns endgame by move 20, with White in control of the d-file. Around moves 35-36 SF allowed Komodo to win a pawn, which the latter failed to capitalize on (KRx+1vsKrx endgames being notoriously hard to win). The middlegame lasted ten moves longer in game 34, and led to a B+N vs BB endgame. Once again White had an extra pawn but White's knight was offside which allowed Black enough time to establish a firm blockade of the potential passer.

Score: 14.5-16.5 (+2-4=25 ?3)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "33"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "A00"]
[Annotator "0.30;0.42"]
[PlyCount "100"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=38.7 plies; 24,283kN/s;
118,067,661 TBAs; match-8.ctg B=38.2 plies; 23,870kN/s; 61,426,841 TBAs;
match-8.ctg} 1. Nc3 {B 0} e5 {B 0} 2. Nf3 {B 0} Nc6 {B 0} 3. d4 {B 0} exd4 {B 0
} 4. Nxd4 {B 0} Nf6 {B 0} 5. Bg5 {B 0} Bc5 {B 0} 6. e3 {B 0} Nxd4 {B 0} 7. exd4
{B 0} Be7 {B 0} 8. Qf3 {B 0} d6 {B 0 Both last book move} 9. Bd3 {0.30/35 86}
O-O {0.42/35 127} 10. O-O {0.35/34 45} c6 {0.42/34 21} 11. Rae1 {0.34/37 154}
Be6 {0.41/36 70} 12. Qg3 {0.38/38 152} Nh5 {0.37/32 12 (Re8)} 13. Bxe7 {
0.32/37 91} Qxe7 {0.37/38 106} 14. Qh3 {0.34/39 87} Nf6 {0.36/33 13} 15. d5 {
0.41/38 86} Bxh3 {0.36/37 112} 16. Rxe7 {0.39/40 48} Bd7 {0.37/32 18} 17. Ne4 {
0.43/41 110 (dxc6)} Nxe4 {0.35/38 67} 18. Rxd7 {0.43/39 54} cxd5 {0.41/34 54}
19. Bxe4 {0.43/37 149 (Rd1)} dxe4 {0.41/37 64} 20. Rd1 {0.39/39 148} f5 {
0.41/35 17} 21. Kf1 {0.47/40 142} Rf7 {0.41/39 148 (Rac8)} 22. R7xd6 {0.47/36
61} Rc8 {0.47/39 103} 23. c3 {0.40/37 30} g6 {0.47/36 32} 24. g3 {0.39/37 180
(Ke2)} Re7 {0.47/41 76 (Kg7)} 25. R1d5 {0.42/40 91 (Ke2)} Kf7 {0.47/40 69} 26.
Ra5 {0.40/40 86 (Ke2)} b6 {0.51/41 118} 27. Rad5 {0.40/40 61} Kg7 {0.51/44 170
(Re6)} 28. Ke2 {0.49/37 59} Rf7 {0.58/46 611 (Rf8)} 29. Ke3 {0.59/38 57} Rcc7 {
0.65/42 76 (Rc4)} 30. h3 {0.59/37 31} Kh6 {0.58/41 56 (Rce7)} 31. Rd4 {0.63/36
39 (Kf4)} Rc5 {0.64/40 200 (Rfe7)} 32. Rd7 {0.58/37 49} Rc7 {0.64/41 57 (Rxd7)}
33. Rxf7 {0.70/36 37 (R7d5)} Rxf7 {0.58/36 90} 34. c4 {0.80/37 86} Kg7 {
0.78/36 91 (Kg5)} 35. g4 {0.68/36 39} fxg4 {0.70/37 176} 36. hxg4 {0.68/37 31}
h5 {0.69/34 10} 37. Rxe4 {0.67/40 77} Kh6 {0.87/38 70} 38. gxh5 {0.78/40 95}
gxh5 {0.76/38 51} 39. b4 {0.68/40 98 (f3)} Kg5 {0.77/42 93} 40. f3 {0.69/39 72}
Rc7 {0.87/39 6} 41. Kf2 {0.77/41 129 (c5)} Kf5 {0.77/35 23} 42. Rd4 {0.70/40
68 (Rh4)} Rh7 {0.98/38 65 (Kf6)} 43. Rh4 {0.58/38 78} a5 {0.82/37 62} 44. bxa5
{0.46/39 47} bxa5 {0.57/37 21} 45. Ke3 {0.29/41 191 (a4)} Kg5 {0.14/35 19} 46.
Rh3 {0.10/38 23} a4 {0.14/36 9} 47. c5 {0.00/44 59} a3 {0.14/42 26} 48. Rh2 {
0.00/45 34} h4 {0.14/43 6 (Kf5)} 49. c6 {0.00/41 23} h3 {0.06/45 27} 50. Ke4 {
0.00/46 22} Kf6 {0.00/47 9 Draw accepted} 1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "34"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "A00"]
[Annotator "0.50;0.31"]
[PlyCount "92"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=42.5 plies; 19,786kN/s;
30,102,217 TBAs; match-8.ctg B=42.3 plies; 21,910kN/s; 21,290,901 TBAs;
match-8.ctg} 1. Nc3 {B 0} e5 {B 0} 2. Nf3 {B 0} Nc6 {B 0} 3. d4 {B 0} exd4 {B 0
} 4. Nxd4 {B 0} Nf6 {B 0} 5. Bg5 {B 0} Bc5 {B 0} 6. e3 {B 0} Nxd4 {B 0} 7. exd4
{B 0} Be7 {B 0} 8. Qf3 {B 0} d6 {B 0 Both last book move} 9. Bd3 {0.50/35 134}
O-O {0.31/33 59} 10. O-O {0.37/38 112} h6 {0.31/33 63 (c6)} 11. Bf4 {0.55/33 56
} c6 {0.45/31 46} 12. Rae1 {0.54/35 350} Be6 {0.50/34 87 (Re8)} 13. Ne4 {
0.50/37 131} Nd5 {0.44/33 102} 14. Bd2 {0.56/32 124} Re8 {0.42/32 67} 15. Re2 {
0.59/34 176 (Qg3)} Bf8 {0.42/33 89} 16. h3 {0.52/32 113} Bd7 {0.41/33 94 (a5)}
17. Rfe1 {0.36/32 115} b5 {0.40/35 95 (a5)} 18. c3 {0.38/32 47} a5 {0.35/31 40}
19. Ng3 {0.29/29 17} Rxe2 {0.44/34 49} 20. Rxe2 {0.36/31 71} a4 {0.43/33 92
(Nf6)} 21. Be4 {0.41/33 95 (Nh5)} Be6 {0.33/32 51} 22. Nh5 {0.35/34 71} Qh4 {
0.34/37 234} 23. Re1 {0.41/31 57} Re8 {0.40/35 229 (Qd8)} 24. b3 {0.56/33 71}
axb3 {0.32/35 90} 25. axb3 {0.39/38 88} Bd7 {0.34/35 47} 26. Bxd5 {0.43/40 57
(Ng3)} Rxe1+ {0.34/37 30} 27. Bxe1 {0.41/41 12} cxd5 {0.29/39 40} 28. Qxd5 {
0.41/43 50} Qg5 {0.26/39 39} 29. Qxg5 {0.34/43 76} hxg5 {0.30/43 31} 30. Bd2 {
0.34/46 85} f6 {0.32/47 86 (Be7)} 31. f3 {0.34/44 59 (g4)} Kf7 {0.19/42 59
(Be7)} 32. Kf2 {0.34/48 51 (Ng3)} Be6 {0.04/45 43} 33. b4 {0.34/43 13} Bc4 {
0.10/44 28 (Be7)} 34. Ng3 {0.20/46 121 (g4)} Ke6 {0.00/45 36} 35. Ne4 {0.20/48
49} Be7 {0.00/48 32} 36. Ke1 {0.20/48 12 (Be3)} Bb3 {0.00/48 67 (Bd8)} 37. Be3
{0.12/49 61 (Nf2)} Kd5 {0.00/49 50 (Bc2)} 38. g4 {0.20/46 32 (Nd2)} Bc4 {
0.00/46 37 (Bc2)} 39. Ng3 {0.27/50 71 (Kd2)} g6 {0.00/50 32 (Bd8)} 40. f4 {
0.19/54 63 (Ne4)} Bd3 {0.00/55 78} 41. Kd2 {0.19/53 17} Bb1 {0.00/55 48 (Be4)}
42. fxg5 {0.00/57 82} fxg5 {0.00/54 29} 43. Bg1 {0.00/60 39 (Kc1)} Kc4 {
0.00/59 39} 44. Be3 {0.00/64 93 (Nf1)} Bf6 {0.00/61 37} 45. Nf1 {0.00/63 43
(Bg1)} Bd3 {0.00/65 72 (Be4)} 46. Ng3 {0.00/61 43} Be7 {0.00/69 72 (Bb1) Draw
accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 18
B07 - Pirc Defence

Game 35 went the whole length, with Komodo reporting 0.00 and SF a minuscule Black advantage throughout. Scheduled for playoff, although it's hard to imagine that anything but a draw could result from the final near-symmetric position.

In game 36 Komodo didn't see a minuscule Black advantage, so a quick GM draw was the result.

Score: 15-17 (+2-4=26 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "35"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "*"]
[ECO "B07"]
[Annotator "-0.06;-0.12"]
[PlyCount "160"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=38.9 plies; 21,794kN/s;
542,468 TBAs; match-8.ctg B=37.7 plies; 19,393kN/s; 544,154 TBAs; match-8.ctg}
1. c3 {B 0} g6 {B 0} 2. d4 {B 0} Bg7 {B 0} 3. e4 {B 0} Nf6 {B 0} 4. Bd3 {B 0}
d6 {B 0} 5. Bg5 {B 0} O-O {B 0} 6. Nd2 {B 0} c5 {B 0} 7. dxc5 {B 0} dxc5 {B 0}
8. Qe2 {B 0} Nc6 {B 0 Both last book move} 9. Ngf3 {-0.06/29 39} Qc7 {-0.12/34
176} 10. O-O {-0.08/31 51} Rd8 {-0.14/34 96 (Nh5)} 11. h3 {-0.09/34 148 (Rfd1)}
Nh5 {0.00/38 207} 12. Bb5 {-0.07/33 136 (Rfd1)} h6 {-0.12/30 35} 13. Be3 {
-0.13/33 55} b6 {-0.09/32 72} 14. Rad1 {-0.07/33 102 (Rfd1)} Bb7 {-0.15/34 141}
15. Bc4 {-0.12/30 45} Rab8 {-0.13/33 218 (Nf4)} 16. Rfe1 {-0.08/31 105} Nf4 {
-0.10/35 73} 17. Qf1 {-0.07/33 103 (Bxf4)} e6 {-0.19/33 75 (Na5)} 18. g3 {
0.00/30 34 (Bxf4)} e5 {-0.13/35 216 (Nh5)} 19. Nb1 {0.00/34 143 (Nxe5)} Nh5 {
0.00/33 130} 20. Bd3 {0.00/32 73 (Ba6)} Nf6 {-0.18/29 62} 21. Na3 {0.00/33 36}
Ra8 {-0.16/32 293 (Bc8)} 22. Nh2 {0.15/30 60 (Nc4)} Bc8 {0.00/34 78 (Ne8)} 23.
f3 {0.08/32 57} h5 {0.00/35 19} 24. h4 {0.00/34 93 (Ba6)} a6 {-0.15/31 61} 25.
Qe2 {0.07/34 74} Bf8 {0.00/34 90} 26. Bg5 {0.02/36 59} Be7 {-0.07/35 119} 27.
Nf1 {0.00/38 116} b5 {-0.15/31 37} 28. Ne3 {0.00/37 45 (Bb1)} c4 {-0.10/32 58
(Be6)} 29. Bb1 {-0.07/35 115 (Bc2)} Be6 {-0.30/32 46} 30. Nac2 {-0.07/36 169}
Rxd1 {-0.27/35 61 (Kg7)} 31. Rxd1 {-0.08/35 44} Rd8 {-0.33/33 42} 32. Kg2 {
-0.07/37 122} Kg7 {-0.31/36 59} 33. a3 {-0.08/38 36 (Rxd8)} Rxd1 {-0.25/34 54}
34. Qxd1 {-0.15/40 180} Ne8 {-0.34/38 216 (Bc5)} 35. Nd5 {-0.11/36 114 (Qd2)}
Qd8 {-0.30/34 47 (Qd7)} 36. Bc1 {-0.06/34 48 (Bxe7)} Bc5 {-0.25/35 64} 37. Be3
{-0.02/38 62} Qd6 {-0.25/38 48} 38. Bxc5 {-0.07/38 70} Qxc5 {-0.25/37 16} 39.
Nce3 {0.00/39 76 (Nde3)} Ne7 {-0.28/33 32 (Kf8)} 40. Qg1 {0.00/40 87} Qd6 {
-0.35/38 103 (Kf8)} 41. Nxe7 {0.00/39 26} Qxe7 {-0.28/38 42} 42. Qd1 {0.00/41
26 (Qc1)} a5 {-0.35/37 41 (Nf6)} 43. Bc2 {0.00/37 33} a4 {-0.35/39 47 (Nc7)}
44. Kf2 {-0.06/42 270} Nf6 {-0.28/41 34} 45. Ke2 {0.00/41 56} Kh7 {-0.28/42 37
(Bc8)} 46. Qd2 {0.00/46 95 (Kf2)} Kg7 {-0.28/44 30} 47. Qd1 {0.00/44 28} Qc7 {
-0.28/45 31 (Bc8)} 48. Qd2 {0.00/44 21} Kh7 {-0.28/46 166 (Qe7)} 49. Bb1 {
0.00/43 36 (Ke1)} Qb6 {-0.28/41 19} 50. Bc2 {0.00/43 28} Qb8 {-0.21/42 36 (Kg7)
} 51. Kf2 {0.00/51 61 (Bb1)} Qc7 {-0.21/38 18 (Qb6)} 52. Ke2 {0.00/39 15 (Bd1)}
Qe7 {-0.21/42 19 (Qb6)} 53. Bb1 {0.00/39 14} Kg7 {-0.21/44 24 (Kg8)} 54. Bc2 {
0.00/43 23 (Nc2)} Kh7 {-0.21/40 16 (Qc5)} 55. Kf2 {0.00/47 53 (Bb1)} Qc7 {
-0.21/39 18 (Kg7)} 56. Ke2 {0.00/42 24} Qb6 {-0.21/38 3} 57. Qe1 {0.00/41 18
(Kf1)} Bc8 {-0.35/34 13 (Kg7)} 58. Bb1 {0.00/41 12 (Qd2)} Kg7 {-0.35/43 80
(Bb7)} 59. Nc2 {0.00/42 15 (Qd2)} Nd7 {-0.28/39 19} 60. Nb4 {0.00/44 13} Nc5 {
-0.28/39 13 (Qe6)} 61. Qf2 {0.00/44 28 (Qg1)} Bb7 {-0.28/41 14} 62. Bc2 {
0.00/44 15 (Qe3)} Qd6 {-0.28/42 21} 63. Qe3 {0.00/43 14} Qe7 {-0.28/39 4 (f6)}
64. Ke1 {0.00/42 25 (Kf2)} Ba8 {-0.28/41 20 (Qd6)} 65. Ke2 {0.00/44 16 (Kf2)}
Bb7 {-0.28/41 12} 66. Qf2 {0.00/47 26 (Ke1)} Kg8 {-0.28/43 16 (Qd6)} 67. Qe1 {
0.00/37 15 (Bb1)} Qd6 {-0.28/42 14 (Kg7)} 68. Qf2 {0.00/47 20 (Kf2)} Kg7 {
-0.28/42 12} 69. Qe3 {0.00/44 12} Kh7 {-0.28/42 10 (f6)} 70. Kf2 {0.00/40 12}
Kg8 {-0.28/43 10 (Kg7)} 71. Qg5 {0.00/41 13 (Kg2)} Kh7 {-0.28/41 20 (Kg7)} 72.
Qe3 {0.00/43 29} Qe7 {-0.28/42 13 (Kg7)} 73. Kg2 {0.00/41 11} Kg7 {-0.28/42 10}
74. Kf2 {0.00/42 12 (Qd2)} Kh7 {-0.28/44 32 (f6)} 75. Qd2 {0.00/46 19 (Kg2)}
Kg7 {-0.28/40 10} 76. Qc1 {0.00/37 7 (Qe3)} Ne6 {-0.28/40 9 (Qd8)} 77. Kf1 {
0.00/41 15 (Qd2)} Qd6 {-0.28/39 14 (Nc5)} 78. Qe3 {0.00/44 16} Qc5 {-0.28/37 2
(Nc5)} 79. Qc1 {0.00/39 8 (Qd2)} Qc7 {-0.28/39 23 (Bc8)} 80. Qd2 {0.00/42 12}
Nc5 {-0.27/36 9 (Qc5)} *

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "36"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "B07"]
[Annotator "0.00;0.00"]
[PlyCount "37"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=37.7 plies; 17,911kN/s; 6,
354 TBAs; match-8.ctg B=36.5 plies; 19,813kN/s; 10,430 TBAs; match-8.ctg} 1. c3
{B 0} g6 {B 0} 2. d4 {B 0} Bg7 {B 0} 3. e4 {B 0} Nf6 {B 0} 4. Bd3 {B 0} d6 {B 0
} 5. Bg5 {B 0} O-O {B 0} 6. Nd2 {B 0} c5 {B 0} 7. dxc5 {B 0} dxc5 {B 0} 8. Qe2
{B 0} Nc6 {B 0 Both last book move} 9. Ngf3 {0.00/34 124} Qc7 {0.00/31 119 (h6)
} 10. O-O {-0.06/32 106} Nh5 {-0.05/32 125} 11. Rfd1 {0.00/33 78 (Bb5)} Nf4 {
-0.07/35 122} 12. Bxf4 {0.00/41 151} Qxf4 {0.00/34 63} 13. g3 {0.00/39 13} Qc7
{-0.07/36 70} 14. Nf1 {0.00/41 76} a6 {0.00/37 92} 15. a4 {-0.02/36 22} Be6 {
0.00/39 138} 16. Ne3 {0.00/38 72} Rad8 {0.00/40 60} 17. Bc2 {0.00/40 93} Rxd1+
{0.00/41 79} 18. Rxd1 {0.00/42 86} Qb6 {0.00/40 57} 19. Bd3 {0.00/39 14 Draw
accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 19
B06 - Modern Defence

Another line with an early exchange on e5. Not particularly fun to play but interesting to see how the engines handle the semi-open positions with a static center of this kind. The position didn't stay semi-open for long in game 37 thanks to sharp play by both sides. As often is the case in engines games, a sharp middlegame led to a level endgame, with Black having a distant passed pawn on the queenside but no real winning chances.
In game 38 SF took its time to build up his position before opening it some more, so Komodo had to try opening it himself before things got much worse. That in itself didn't help Black much as the following middlegame was evaluated by both engines as advantageous for White; however, the best SF could think of is exchange-exchange-exchange into a B+N+some pawns endgame with an extra pawn for White. Komodo cleverly eliminated the queenside pawns after which the draw was not far off, all the pawns being on the same side of the board.

Score: 16-18 (+2-4=28 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "37"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "B06"]
[Annotator "0.22;0.32"]
[PlyCount "82"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=37.1 plies; 22,095kN/s; 8,
464,415 TBAs; match-8.ctg B=40.6 plies; 22,089kN/s; 21,716,524 TBAs; match-8.
ctg} 1. d4 {B 0} g6 {B 0} 2. c3 {B 0} Bg7 {B 0} 3. e4 {B 0} b6 {B 0} 4. Nf3 {
B 0} d6 {B 0} 5. Nbd2 {B 0} e5 {B 0} 6. dxe5 {B 0} dxe5 {B 0} 7. Bc4 {B 0} Qe7
{B 0} 8. a4 {B 0} Nf6 {B 0 Both last book move} 9. O-O {0.22/31 112} O-O {
0.32/32 124 (Bb7)} 10. b4 {0.18/31 117 (Re1)} Be6 {0.14/31 161 (h6)} 11. Qe2 {
0.29/29 89 (Ba3)} Rd8 {0.06/31 90 (Nbd7)} 12. Nxe5 {0.29/35 139 (Ba3)} Nh5 {
0.00/35 116} 13. Ndf3 {0.13/36 85} Bxc4 {0.00/34 18} 14. Nxc4 {0.22/36 78} Bxc3
{0.00/36 60} 15. Bg5 {0.21/37 86} Bf6 {0.06/33 16} 16. Bxf6 {0.13/37 75} Qxf6 {
0.00/35 53} 17. e5 {0.14/38 116} Qe6 {0.00/38 65} 18. Qe4 {0.11/38 108 (Ng5)}
Nc6 {0.06/38 108} 19. b5 {0.16/39 134} Nd4 {0.02/37 27} 20. Nxd4 {0.07/36 45}
Qxc4 {0.00/42 141} 21. Rfd1 {0.13/37 109} a6 {0.00/41 95} 22. e6 {0.12/38 91
(Rac1)} axb5 {0.00/39 60} 23. Rac1 {0.14/37 113 (e7)} Qd5 {0.00/39 78} 24.
exf7+ {0.14/38 110} Qxf7 {0.00/41 14} 25. Nxb5 {0.21/35 31} Rxd1+ {0.00/42 114}
26. Rxd1 {0.12/37 29} Rf8 {0.00/39 14} 27. Qe2 {0.08/36 87 (Qc2)} Nf4 {0.00/42
318} 28. Qc2 {0.00/33 31} Re8 {0.00/45 98 (g5)} 29. g3 {0.14/37 54} Qe6 {
0.00/43 24 (Nh3+)} 30. Qd2 {0.20/35 30} Rf8 {0.00/46 83} 31. Re1 {0.10/37 36
(gxf4)} Qd5 {0.00/43 76} 32. Qxd5+ {0.14/35 29} Nxd5 {0.00/44 27} 33. Rd1 {
0.08/40 73} c6 {0.00/44 80} 34. Na7 {0.11/38 41 (Nd4)} Nc3 {0.00/43 53} 35. Rd3
{0.03/37 51 (Rd6)} Nxa4 {0.00/45 72} 36. Nxc6 {0.08/39 117} Nc5 {0.00/45 43}
37. Rd2 {0.00/40 97 (Rd4)} Kf7 {0.00/43 132} 38. Rb2 {0.00/42 78 (Kg2)} Nd7 {
0.00/50 79} 39. Nb4 {0.00/43 55 (Rd2)} Ke6 {0.00/45 44} 40. Re2+ {0.00/45 92}
Kd6 {0.00/49 49} 41. Rd2+ {0.00/42 25} Ke6 {0.00/50 61 (Kc5) Draw accepted}
1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "38"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "B06"]
[Annotator "0.38;0.22"]
[PlyCount "121"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=42.5 plies; 19,542kN/s;
83,161,394 TBAs; match-8.ctg B=39.0 plies; 21,972kN/s; 193,912,369 TBAs;
match-8.ctg} 1. d4 {B 0} g6 {B 0} 2. c3 {B 0} Bg7 {B 0} 3. e4 {B 0} b6 {B 0} 4.
Nf3 {B 0} d6 {B 0} 5. Nbd2 {B 0} e5 {B 0} 6. dxe5 {B 0} dxe5 {B 0} 7. Bc4 {B 0}
Qe7 {B 0} 8. a4 {B 0} Nf6 {B 0 Both last book move} 9. b4 {0.38/33 175} Bb7 {
0.22/31 183 (Be6)} 10. O-O {0.39/32 121} O-O {0.23/31 49} 11. Re1 {0.40/30 65
(Qe2)} Nbd7 {0.20/31 114 (h6)} 12. Bb3 {0.35/32 137 (a5)} h6 {0.20/30 96} 13.
Qc2 {0.33/33 250 (a5)} Rfd8 {0.17/30 119} 14. Ba3 {0.36/31 151} Qe8 {0.13/31
139} 15. h3 {0.38/29 95} Rab8 {0.09/29 65} 16. Re3 {0.45/31 163} Bf8 {0.11/29
50} 17. Ne1 {0.27/33 122 (Qd1)} a6 {0.11/29 41 (Nh5)} 18. Nd3 {0.50/28 42 (Bb2)
} c5 {0.27/31 76} 19. Rae1 {0.33/33 122} cxb4 {0.21/37 91 (Rbc8)} 20. cxb4 {
0.53/30 45} b5 {0.20/34 46} 21. axb5 {0.70/32 94 (Nf3)} axb5 {0.41/31 63} 22.
Bb2 {0.71/33 110} Rbc8 {0.56/33 184} 23. Qb1 {0.67/33 89} Bg7 {0.54/33 87 (Kh7)
} 24. Nf3 {0.57/34 140} Nh5 {0.50/32 54} 25. R3e2 {0.75/32 46 (Bd5)} Qe7 {
0.47/32 158 (Nb6)} 26. Qa1 {0.66/34 85 (Ba1)} Ra8 {0.59/34 72} 27. Qc1 {
0.76/36 59} Rac8 {0.68/34 62} 28. Qe3 {0.77/33 9} Nb6 {0.55/33 56} 29. Qxb6 {
0.72/36 112} Rxd3 {0.45/34 38} 30. Re3 {0.70/36 33} Rxe3 {0.50/34 48 (Nf4)} 31.
Rxe3 {0.81/32 33} Bc6 {0.46/37 105} 32. Kh2 {0.77/31 21} Qe8 {0.57/37 84} 33.
Qa7 {0.73/35 132} Bd7 {0.58/40 58} 34. Qa6 {0.62/31 12 (Rc3)} Kh7 {0.58/32 50}
35. g3 {0.76/34 28} Ra8 {0.58/36 71 (f6)} 36. Qb7 {0.60/38 115 (Qb6)} Rb8 {
0.66/38 99} 37. Qa6 {0.58/41 63 (Qa7)} Rc8 {0.81/37 148 (Ra8)} 38. Rd3 {
0.71/33 37} Bc6 {0.63/35 47} 39. Rc3 {0.70/38 79} Bd7 {0.66/35 39} 40. Qb6 {
0.72/38 112 (Qb7)} Bc6 {0.62/35 69} 41. Qa7 {0.71/39 56} Ra8 {0.58/34 28} 42.
Qxf7 {0.67/37 9 (Qe3)} Qxf7 {0.61/37 23} 43. Bxf7 {0.79/39 31} Bxe4 {0.55/39 35
} 44. Nd2 {0.72/35 7} Bb7 {0.70/39 40} 45. Rc7 {0.67/39 45} Rd8 {0.55/39 28}
46. Nf1 {0.67/36 6} Bf3 {0.60/39 36} 47. Bb3 {0.70/39 36} Nf6 {0.62/41 69} 48.
Bxe5 {0.66/36 6} Rd7 {0.60/39 31} 49. Rxd7 {0.64/41 41 (Ne3)} Nxd7 {0.50/37 41}
50. Bxg7 {0.64/42 13 (Bd6)} Kxg7 {0.54/38 23} 51. g4 {0.63/45 91 (Nd2)} Nb8 {
0.30/44 58 (Ne5)} 52. Ne3 {0.28/45 89} Kf6 {0.29/44 27 (Na6)} 53. Kg3 {0.59/44
25} Bc6 {0.26/47 38} 54. Nd5+ {0.51/44 7} Bxd5 {0.20/51 111} 55. Bxd5 {0.01/66
83} Na6 {0.02/53 33} 56. Bc6 {0.01/64 6} g5 {0.00/58 30} 57. Bxb5 {0.00/72 24}
Nxb4 {0.00/59 17} 58. f3 {0.00/83 20 (h4)} Ke5 {0.00/66 34 (Nd5)} 59. h4 {
0.00/95 23} gxh4+ {0.00/73 43} 60. Kxh4 {0.00/121 19} Kf4 {0.00/88 28} 61. Bf1
{0.00/127 8 (Bc4) Draw accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 20
A20 - English vs KID

A line where White goes for an early b4 push rather than the more common kingside fianchetto. Not a particularly threatening line, IMO; without the g2 bishop the b-pawn advance doesn't have much sting.

Game 39 saw another semi-open, semi-symmetric stolid position with an e4/e5 center, similar to quite a few of the previous games in this match. Around moves 24-25 SF went for a repetition of moves, which Komodo eventually avoided (see the effect of the twofold-repetition fix from around the New Year on SF's eval here), nevertheless it couldn't avoid several exchanges and failed to make any meaningful progress.

Game 40 saw some enterprising play on Komodo's part, to avoid the above-mentioned near-symmetry it didn't hesitate to allow for some pawn weaknesses in its camp. It ended up with a dangerous-looking (to a human, that is) passed a-pawn which didn't not hep to avoid yet another draw.

Score: 17-19 (+2-4=30 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "39"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "A20"]
[Annotator "0.19;0.08"]
[PlyCount "79"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=36.9 plies; 21,899kN/s;
29,821,901 TBAs; match-8.ctg B=38.2 plies; 20,227kN/s; 14,088,864 TBAs;
match-8.ctg} 1. a3 {B 0} e5 {B 0} 2. c4 {B 0} Nf6 {B 0} 3. d3 {B 0} a5 {B 0} 4.
Nc3 {B 0} d6 {B 0} 5. Nf3 {B 0} Nbd7 {B 0} 6. e3 {B 0} g6 {B 0} 7. Bd2 {B 0}
Bg7 {B 0} 8. b4 {B 0} axb4 {B 0 Both last book move} 9. axb4 {0.19/33 41} Rxa1
{0.08/37 163} 10. Qxa1 {0.06/34 39} O-O {0.19/34 18} 11. Qa7 {0.12/35 95 (Qa2)}
c6 {0.00/33 45} 12. Be2 {0.00/38 100} d5 {0.00/35 13} 13. e4 {0.00/38 63} dxc4
{0.00/37 95} 14. dxc4 {0.06/35 41} Qe7 {0.00/36 37} 15. c5 {0.00/33 46} Re8 {
0.06/36 144} 16. O-O {0.10/37 172 (Be3)} Nf8 {0.00/36 84} 17. h3 {0.08/33 47
(Be3)} Nh5 {0.00/35 138} 18. Bc4 {0.00/36 127 (Re1)} Nf4 {0.00/36 130 (Be6)}
19. Re1 {0.15/35 85} Rd8 {0.10/38 113 (Bh6)} 20. Bxf4 {0.31/35 86} exf4 {
0.08/35 18} 21. e5 {0.28/36 57} Be6 {0.21/38 168} 22. Qa2 {0.31/37 76 (Bxe6)}
Qc7 {0.08/38 63 (Bxc4)} 23. Na4 {0.19/36 86} Qe7 {0.02/36 26 (h6)} 24. Nc3 {
0.20/37 140 (Nb6)} Qc7 {0.03/41 275} 25. Qe2 {0.13/39 196 (Na4)} Re8 {0.04/40
264 (Rd7)} 26. Bxe6 {0.15/36 69} Nxe6 {0.12/38 35} 27. Qb2 {0.16/38 121} b6 {
0.06/38 45} 28. Ne4 {0.14/35 45 (Na4)} bxc5 {0.00/36 19} 29. Nxc5 {0.14/38 90}
Nxc5 {0.00/40 143} 30. bxc5 {0.15/37 114} Qd7 {0.00/45 61 (h6)} 31. Qc2 {
0.20/34 38} Qe6 {0.00/45 15 (Bf8)} 32. h4 {0.19/33 27 (Qa4)} Qd7 {0.07/40 398}
33. h5 {0.29/36 101 (Kh2)} Bf8 {0.00/39 34} 34. Re4 {0.23/38 76 (hxg6)} Qf5 {
0.07/36 96} 35. hxg6 {0.25/38 49} hxg6 {0.00/38 44} 36. Nd4 {0.17/40 73} Qg5 {
0.00/39 15} 37. e6 {0.00/41 90} fxe6 {0.00/42 56} 38. Nxe6 {0.00/44 99} Qf5 {
0.00/43 22} 39. Qe2 {0.00/43 134} Re7 {0.00/44 36} 40. f3 {0.00/44 63 Draw
accepted} 1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "40"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "A20"]
[Annotator "0.24;0.12"]
[PlyCount "76"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=37.8 plies; 19,870kN/s; 9,
619,029 TBAs; match-8.ctg B=38.0 plies; 21,049kN/s; 5,073,850 TBAs; match-8.ctg
} 1. a3 {B 0} e5 {B 0} 2. c4 {B 0} Nf6 {B 0} 3. d3 {B 0} a5 {B 0} 4. Nc3 {B 0}
d6 {B 0} 5. Nf3 {B 0} Nbd7 {B 0} 6. e3 {B 0} g6 {B 0} 7. Bd2 {B 0} Bg7 {B 0} 8.
b4 {B 0} axb4 {B 0 Both last book move} 9. axb4 {0.24/37 158} Rxa1 {0.12/32 35}
10. Qxa1 {0.25/32 12} O-O {0.11/31 43} 11. Qa2 {0.14/37 108 (Qa3)} c5 {0.08/34
109 (Re8)} 12. bxc5 {0.27/32 48} e4 {0.10/37 135 (Nxc5)} 13. dxe4 {0.17/37 132}
Nxc5 {0.07/37 53} 14. Be2 {0.17/38 77} Nfxe4 {0.10/36 71} 15. Nxe4 {0.09/36 12}
Nxe4 {0.10/35 57} 16. O-O {0.12/39 56} Re8 {0.06/36 120 (Bf5)} 17. Bb4 {
0.23/34 157} Bd7 {0.08/35 111 (Qb6)} 18. Nd2 {0.17/35 108} Nc5 {0.07/33 36} 19.
Qa3 {0.21/36 49 (Nb3)} Bc6 {0.07/32 53} 20. Rd1 {0.13/35 24 (Bf3)} Qe7 {
0.14/36 309} 21. Nf3 {0.20/37 62} h5 {0.09/32 56 (Qf8)} 22. h3 {0.18/35 86} Kh7
{0.06/36 136 (Bf6)} 23. Nd4 {0.19/36 117} Ba4 {0.07/37 78} 24. Rd2 {0.14/36 161
} Ra8 {0.10/37 76} 25. Ra2 {0.11/38 87 (Bxc5)} Ra6 {0.00/37 91} 26. Qc1 {
0.09/31 14} Qc7 {0.00/38 77 (Qd8)} 27. Qd2 {0.16/33 52 (Qe1)} Ne4 {0.01/36 160}
28. Qe1 {0.08/33 56} Bd7 {0.00/36 44} 29. Rxa6 {0.13/39 52} bxa6 {0.06/38 27}
30. Bf3 {0.19/38 19} f5 {0.00/40 56} 31. Bxe4 {0.21/42 93} fxe4 {0.13/43 97}
32. Qa1 {0.22/40 28} Qxc4 {0.06/42 42} 33. Bxd6 {0.14/44 105} Bb5 {0.06/44 177
(Qd5)} 34. Kh2 {0.00/44 157 (Bg3)} Qd5 {0.00/43 29} 35. Qa3 {0.00/46 84 (Bg3)}
a5 {0.00/47 66} 36. Bg3 {0.00/45 12} a4 {0.00/49 81 (Be8)} 37. Qe7 {0.00/45 57}
Bc4 {0.00/46 41} 38. Bd6 {0.00/44 25} Qf7 {0.00/44 27 Draw accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 21
E16 - Queen's Indian Defence with ...Bb4+

A more mainstream opening than what we have seen so far in this match - a Queen's Indian/Bogo-Indian hybrid, although an offbeat line.

Game 41 featured some solid play with numerous exchanges; SF was not afraid of pushing pawns in front of his king to get Komodo's offside knight stranded. Consequently, much of the middlegame revolved around White's effort to liberate it and Black's counters to that. By move 40 a KNPPPP endgame arose, with K having a passed pawn on the kingside. SF did not hesitate to give up a pawn and yet get a draw.

Game 42 was a bit livelier, with Komodo going for pawn weaknesses in its camp balanced by active piece play, which must have led SF to overrate its chances for a while. On move 45 K sacrificed a knight for an attack on the white king; two moves later SF had to part with a rook in order to avoid a perpetual check. In the resulting complex endgame with queens on the board the material balance favored Black: a rook and two pawns for two minors. Although SF succeeded in drawing, the impression one gets is that it was barely hanging on.

Score: 18-20 (+2-4=32 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "41"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "E16"]
[Annotator "0.14;0.10"]
[PlyCount "90"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=38.9 plies; 23,625kN/s;
90,152,087 TBAs; match-8.ctg B=40.5 plies; 22,114kN/s; 100,801,143 TBAs;
match-8.ctg} 1. c4 {B 0} e6 {B 0} 2. d4 {B 0} Bb4+ {B 0} 3. Bd2 {B 0} c5 {B 0}
4. Bxb4 {B 0} cxb4 {B 0} 5. Nf3 {B 0} Nf6 {B 0} 6. Nbd2 {B 0} O-O {B 0} 7. g3 {
B 0} b6 {B 0} 8. Bg2 {B 0} Bb7 {B 0 Both last book move} 9. O-O {0.14/32 127}
d6 {0.10/34 186} 10. Re1 {0.22/34 193} Qc7 {0.10/34 89 (Nbd7)} 11. Rc1 {
0.14/33 54 (e4)} a5 {0.08/33 95 (Nbd7)} 12. Ng5 {0.18/32 73 (e4)} Bxg2 {
0.02/32 141 (h6)} 13. Kxg2 {0.25/35 47} Qb7+ {0.04/32 25 (h6)} 14. f3 {0.26/33
63} h6 {0.00/36 44 (Rd8)} 15. Nge4 {0.33/34 49} Nxe4 {0.17/34 45} 16. Nxe4 {
0.28/36 85} d5 {0.00/40 40 (Rd8)} 17. Nf2 {0.25/34 48} Nc6 {0.00/41 384} 18.
cxd5 {0.24/35 186} exd5 {0.00/35 12} 19. Nh3 {0.21/36 71} Rad8 {0.00/38 107
(Nd8)} 20. Nf4 {0.25/36 129} g5 {0.00/38 82 (Rd6)} 21. Nh5 {0.47/32 32 (Nh3)}
f5 {0.09/37 215 (Rd6)} 22. h3 {0.44/35 99} Rd6 {0.22/36 137} 23. g4 {0.51/31 35
} Qd7 {0.30/38 163 (Ne7)} 24. Qd3 {0.66/34 51} Ne7 {0.22/37 47} 25. Rc2 {
0.42/37 114} Rc8 {0.44/34 22} 26. Rec1 {0.47/40 144} Rxc2 {0.26/34 51} 27. Rxc2
{0.48/38 55} f4 {0.39/33 16} 28. h4 {0.50/39 89} Re6 {0.30/37 70} 29. hxg5 {
0.45/40 100} hxg5 {0.18/40 175} 30. e3 {0.37/40 96} fxe3 {0.17/37 17} 31. Re2 {
0.34/35 32} Kf8 {0.17/40 152 (Ng6)} 32. Rxe3 {0.51/37 66} Qc8 {0.10/39 170} 33.
Rxe6 {0.51/38 81} Qxe6 {0.11/41 53} 34. Kf2 {0.48/38 49} Kg8 {0.11/35 13 (Qh6)}
35. b3 {0.37/37 77 (Qc2)} Qd6 {0.04/36 37 (Ng6)} 36. f4 {0.44/37 49} gxf4 {
0.04/36 24} 37. Qf3 {0.26/41 65} Qc6 {0.00/38 34 (Qc7)} 38. Nxf4 {0.14/41 51}
Qc2+ {0.00/37 21} 39. Qe2 {0.08/44 190 (Kf1)} Qxe2+ {0.00/46 42} 40. Kxe2 {
0.10/47 45} Kf7 {0.00/50 10 (b5)} 41. Kf3 {0.00/51 44} Kf6 {0.00/57 38} 42. Kg3
{0.00/53 24} Nc6 {0.00/57 9 (Kg5)} 43. Kh4 {0.00/51 27 (Nxd5+)} Nxd4 {0.00/63
38} 44. Nxd5+ {0.00/55 35} Kg6 {0.00/62 14} 45. Nxb6 {0.00/60 54} Nf3+ {
0.00/71 118 Draw accepted} 1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "42"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "E16"]
[Annotator "0.24;0.16"]
[PlyCount "135"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=33.3 plies; 19,467kN/s;
18,636,622 TBAs; match-8.ctg B=33.4 plies; 21,239kN/s; 14,921,684 TBAs;
match-8.ctg} 1. c4 {B 0} e6 {B 0} 2. d4 {B 0} Bb4+ {B 0} 3. Bd2 {B 0} c5 {B 0}
4. Bxb4 {B 0} cxb4 {B 0} 5. Nf3 {B 0} Nf6 {B 0} 6. Nbd2 {B 0} O-O {B 0} 7. g3 {
B 0} b6 {B 0} 8. Bg2 {B 0} Bb7 {B 0 Both last book move} 9. O-O {0.24/35 123}
d6 {0.16/29 45} 10. Re1 {0.23/33 14 (Rc1)} Nbd7 {0.14/32 153 (Re8)} 11. a3 {
0.25/34 134 (Rc1)} bxa3 {0.12/34 49} 12. Rxa3 {0.25/32 13} a5 {0.14/34 161
(Qc7)} 13. e4 {0.25/34 78 (Nh4)} e5 {0.15/30 39} 14. Rae3 {0.20/30 15} Qc7 {
0.16/31 101 (Qc8)} 15. b3 {0.24/32 63} Ba6 {0.18/33 135} 16. Nb1 {0.38/33 188
(Bf1)} a4 {0.21/31 61} 17. Na3 {0.36/34 213 (bxa4)} axb3 {0.20/30 58} 18. Qxb3
{0.35/28 12} Rfc8 {0.22/32 188 (g6)} 19. Qb4 {0.48/29 49} g6 {0.29/33 94} 20.
Rb3 {0.28/34 199 (Rc3)} Rab8 {0.17/33 171 (Re8)} 21. Bf1 {0.22/36 253 (Rbb1)}
Re8 {0.10/34 78} 22. Rbe3 {0.23/33 80 (Nb5)} Rbc8 {0.20/31 147} 23. h3 {
0.31/31 45 (Qb2)} h6 {0.19/33 202 (Nb8)} 24. Qb2 {0.39/29 65} Kh7 {0.19/32 180
(Rcd8)} 25. Nd2 {0.45/30 88 (Bd3)} Ra8 {0.21/33 127 (Kg8)} 26. Rd1 {0.48/30
108 (Nc2)} exd4 {0.27/33 122 (Re6)} 27. Qxd4 {0.59/30 51} Qc5 {0.40/31 54} 28.
Qb2 {0.63/29 31} Qh5 {0.36/32 132 (Rac8)} 29. Rde1 {0.65/31 72} Qc5 {0.37/29
36 (Qe5)} 30. Nab1 {0.64/33 123 (Bg2)} Ne5 {0.33/32 54 (Bb7)} 31. Rc1 {0.56/36
103} Bc8 {0.41/29 22 (Bb7)} 32. Nc3 {0.38/30 13 (Rd1)} Be6 {0.41/30 24} 33. Nb5
{0.71/33 73} Rec8 {0.31/34 113} 34. Nd4 {0.62/37 296} g5 {0.34/35 178} 35. Rd1
{0.72/32 73 (N2f3)} g4 {0.39/30 35 (Bd7)} 36. Nxe6 {0.80/31 33} fxe6 {0.54/29
27} 37. Nb3 {0.54/30 9} Qc7 {0.13/29 33 (Qa3)} 38. Nd4 {0.39/29 97} Qf7 {
0.28/30 42} 39. Qc2 {0.37/29 74} gxh3 {0.23/30 47 (Rf8)} 40. Rc3 {0.18/33 78
(Rb3)} h2+ {0.13/31 39 (Qh5)} 41. Kxh2 {0.24/32 42} Nfg4+ {0.17/33 93 (Ra7)}
42. Kg1 {0.38/32 37} Ra6 {0.20/33 37 (Ra4)} 43. Qe2 {0.34/36 117 (f4)} Rca8 {
0.20/34 31} 44. f4 {0.29/35 61} Ra2 {0.11/35 28} 45. Nc2 {0.18/39 56} Qh5 {
0.19/35 31} 46. fxe5 {0.17/36 21} Qxe5 {0.19/37 34} 47. Qxg4 {0.14/38 58} Qxc3
{0.28/36 31} 48. e5 {0.23/38 129 (Bd3)} Qxe5 {0.22/34 35} 49. Bd3+ {0.22/39 59}
Kh8 {0.29/35 24} 50. Kg2 {0.29/37 48} Rg8 {0.20/38 36} 51. Qf3 {0.29/37 25}
Raa8 {0.18/37 49} 52. Rb1 {0.21/35 4} Raf8 {0.23/38 31} 53. Qe3 {0.21/40 29}
Qxe3 {0.16/36 25} 54. Nxe3 {0.37/30 5} Rb8 {0.23/37 34} 55. Rh1 {0.25/36 35}
Kg7 {0.22/37 30} 56. Nc2 {0.20/33 6} Ra8 {0.18/35 45} 57. Nd4 {0.28/35 61} Rge8
{0.17/34 26} 58. Bc2 {0.21/33 23} Ra2 {0.12/33 37 (Ra3)} 59. Kh3 {0.38/32 24
(Rf1)} Ra5 {0.22/35 33 (Ra3)} 60. Rb1 {0.16/33 27} Rh5+ {0.13/34 14} 61. Kg2 {
0.20/31 3} Rc5 {0.09/34 24} 62. Ba4 {0.20/33 28} Re7 {0.07/33 10} 63. Bb3 {
0.18/29 47 (Bb5)} Kf6 {0.00/36 12 (Re8)} 64. Rf1+ {0.00/32 20} Ke5 {0.00/38 14}
65. Nf3+ {0.00/35 11 (Rd1)} Kf6 {0.00/40 10} 66. Nd4+ {0.00/37 11} Ke5 {
0.00/39 17} 67. Rd1 {0.00/37 16 (Rf4)} Kf6 {0.00/38 12} 68. Rd2 {0.00/35 13
(Ne2) Draw accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 22
A16 - English Anti-Gruenfeld

Although the line starts out as an English it transposes early on into a stolid Gruenfeld with e3. After the creative exertions of the previous round Komodo opted for a quick draw in game 43. With white pieces in game 44 SF went for a more aggressive b4, only to give Black a somewhat more pleasant position. The game ended in a sharp position that deserved being played out on the board. Having seen the 35...Bc5 36.gxf5 Rxf5 37.e4 dxe4 38.Nxe4 Rxa4 39.Nf6+ Rxf6 40.exf6 Qxg2+ 41.Kxg2 line the competitors chose not to, though.

Score: 19-21 (+2-4=34 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "43"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "A16"]
[Annotator "0.00;0.00"]
[PlyCount "35"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=40.4 plies; 18,133kN/s;
261 TBAs; match-8.ctg B=35.4 plies; 17,221kN/s; 563 TBAs; match-8.ctg} 1. c4 {
B 0} Nf6 {B 0} 2. Nc3 {B 0} d5 {B 0} 3. e3 {B 0} g6 {B 0} 4. Qb3 {B 0} e6 {B 0}
5. Nf3 {B 0} Bg7 {B 0} 6. Qa3 {B 0} b6 {B 0} 7. d4 {B 0} Bb7 {B 0} 8. cxd5 {B 0
} exd5 {B 0 Both last book move} 9. Ne5 {0.00/36 117} Nfd7 {0.00/37 146} 10.
Nxd7 {0.00/38 79} Nxd7 {0.07/31 15} 11. g3 {0.00/39 57 (Be2)} Nf6 {-0.12/30 46}
12. Bd2 {0.00/41 151 (Bg2)} Qd7 {-0.09/36 114 (c6)} 13. Rc1 {0.00/37 126 (h4)}
c6 {0.00/39 99 (Bf8)} 14. Bg2 {0.00/43 112} Bf8 {0.00/34 24} 15. Qb3 {0.00/42
45} Bg7 {0.00/37 76} 16. Qa3 {0.00/46 163 (0-0)} Bf8 {0.00/41 296} 17. Qb3 {
0.00/42 38} Bg7 {0.00/34 14} 18. Qa3 {0.00/49 162 Draw accepted} 1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "44"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "A16"]
[Annotator "0.00;0.00"]
[PlyCount "69"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=35.3 plies; 17,621kN/s;
344,252 TBAs; match-8.ctg B=33.4 plies; 19,054kN/s; 101,214 TBAs; match-8.ctg}
1. c4 {B 0} Nf6 {B 0} 2. Nc3 {B 0} d5 {B 0} 3. e3 {B 0} g6 {B 0} 4. Qb3 {B 0}
e6 {B 0} 5. Nf3 {B 0} Bg7 {B 0} 6. Qa3 {B 0} b6 {B 0} 7. d4 {B 0} Bb7 {B 0} 8.
cxd5 {B 0} exd5 {B 0 Both last book move} 9. Be2 {0.00/37 115} Nbd7 {0.00/33 62
} 10. b4 {0.00/37 18 (0-0)} O-O {-0.16/33 75} 11. O-O {0.00/39 60 (Qb3)} c6 {
-0.11/33 79} 12. Qb3 {0.00/39 36 (Rd1)} a5 {-0.12/33 53} 13. bxa5 {0.00/42 613}
Rxa5 {-0.10/33 92} 14. Bb2 {-0.02/36 116} Qa8 {-0.12/36 164 (Re8)} 15. a4 {
0.00/39 65} Ba6 {-0.11/37 140 (Re8)} 16. Bxa6 {0.00/39 51} Rxa6 {-0.17/37 134}
17. Rfc1 {0.00/38 309} Rc8 {-0.18/32 96 (Ra5)} 18. h3 {0.00/33 76 (Rd1)} Nf8 {
-0.18/31 50 (Ra5)} 19. Ba3 {-0.11/32 111 (Ng5)} c5 {-0.23/32 56} 20. Rab1 {
-0.06/35 166 (Bb2)} Ne6 {-0.24/32 75} 21. Bb2 {-0.12/35 115} Bf8 {-0.19/32 119}
22. Qd1 {-0.10/33 59 (Ba1)} Rd8 {-0.26/31 92} 23. Qc2 {-0.08/31 22} c4 {
-0.16/33 168 (Bg7)} 24. Ba1 {-0.06/31 85} Nd7 {-0.22/31 65} 25. Qe2 {-0.08/32
112 (Rd1)} Ra5 {-0.19/29 47 (Bg7)} 26. Nd2 {0.00/33 212 (Rd1)} f5 {-0.23/30 78}
27. f4 {0.00/33 107} Re8 {-0.10/32 85} 28. Qf3 {0.00/34 56} Kh8 {-0.13/33 113
(Ba3)} 29. Qf2 {0.00/32 37 (g4)} Be7 {-0.15/30 59 (Ba3)} 30. Nf3 {0.00/32 38}
Qc6 {0.00/35 104 (Nc7)} 31. g4 {0.00/35 46} Rf8 {0.00/37 77} 32. Qg2 {0.00/34
12} Nc7 {0.00/38 82} 33. Kh1 {0.00/37 61} Kg8 {0.00/39 217} 34. Ne5 {0.00/37
28 (Rd1)} Nxe5 {0.00/36 34} 35. dxe5 {0.00/39 59 Draw accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 23
C10 - French Exchange

Game 45 was another early draw. Komodo went in for complications on move 14 and won a pawn; the price was a broken-up king's cover with the resulting kingside counterplay for Black.

Game 46 was an even shorter, featureless draw. I think if I ever run another such match I'll have to pick the opening lines manually.

Score: 20-22 (+2-4=36 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.05"]
[Round "45"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "C10"]
[Annotator "0.20;0.11"]
[PlyCount "53"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=35.0 plies; 19,499kN/s;
283,546 TBAs; match-8.ctg B=34.8 plies; 18,351kN/s; 292,354 TBAs; match-8.ctg}
1. d4 {B 0} a6 {B 0} 2. e4 {B 0} e6 {B 0} 3. Bd3 {B 0} d5 {B 0} 4. Nc3 {B 0}
Nc6 {B 0} 5. Nf3 {B 0} Nb4 {B 0} 6. Be2 {B 0} Nf6 {B 0} 7. exd5 {B 0} Nbxd5 {
B 0} 8. Nxd5 {B 0} exd5 {B 0 Both last book move} 9. O-O {0.20/31 73} Be7 {
0.11/33 218} 10. c3 {0.19/33 159 (h3)} O-O {0.18/33 100} 11. Qb3 {0.21/32 167
(Qc2)} Ne4 {0.09/33 160} 12. Re1 {0.17/30 56 (Bf4)} Bd6 {0.13/34 186 (c5)} 13.
Bd3 {0.09/33 314 (c4)} Re8 {0.08/35 130} 14. Ng5 {0.05/36 146} Be6 {0.04/33 17}
15. Bxe4 {0.09/35 73} dxe4 {0.07/36 131} 16. c4 {0.13/34 43 (Nxe6)} Qf6 {
0.08/36 131} 17. Rxe4 {0.23/31 34} Bf5 {0.27/31 11} 18. Rxe8+ {0.17/33 37} Rxe8
{0.17/35 53} 19. Be3 {0.13/33 50} Qg6 {0.29/33 13 (b6)} 20. c5 {0.19/35 39} Bf8
{0.16/33 47} 21. Nf3 {0.16/37 275} Be4 {0.31/29 17} 22. Bf4 {0.26/34 39 (Ne1)}
c6 {0.00/33 50 (b6)} 23. Bg3 {0.13/36 53} Bxf3 {0.00/37 56} 24. gxf3 {0.00/36
36} h5 {0.00/39 115} 25. h4 {0.00/41 65 (Kh1)} Rd8 {0.00/41 71} 26. Qxb7 {
0.00/42 86 (Rd1)} Rxd4 {0.00/42 62} 27. Kg2 {0.00/43 84 (Qb8) Draw accepted}
1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.06"]
[Round "46"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "C10"]
[Annotator "0.24;0.08"]
[PlyCount "42"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=38.1 plies; 19,164kN/s;
111,807 TBAs; match-8.ctg B=35.5 plies; 19,881kN/s; 83,842 TBAs; match-8.ctg}
1. d4 {B 0} a6 {B 0} 2. e4 {B 0} e6 {B 0} 3. Bd3 {B 0} d5 {B 0} 4. Nc3 {B 0}
Nc6 {B 0} 5. Nf3 {B 0} Nb4 {B 0} 6. Be2 {B 0} Nf6 {B 0} 7. exd5 {B 0} Nbxd5 {
B 0} 8. Nxd5 {B 0} exd5 {B 0 Both last book move} 9. Bd3 {0.24/33 202} Bg4 {
0.08/34 156 (Bd6)} 10. O-O {0.16/33 99} Be7 {0.00/33 43} 11. Re1 {0.08/38 239}
O-O {0.11/34 54} 12. h3 {0.06/36 94 (c3)} Bh5 {0.00/35 64} 13. Bf4 {0.04/37 96
(c3)} Re8 {0.05/34 146} 14. Be5 {0.04/29 11} c6 {0.00/36 145 (Bd6)} 15. Bxf6 {
0.04/37 70 (g4)} Bxf6 {0.00/39 34} 16. g4 {0.11/37 100} Bg6 {0.00/42 46} 17.
Rxe8+ {0.00/42 91 (Bxg6)} Qxe8 {0.00/5 0} 18. Bxg6 {0.00/43 71} hxg6 {0.00/43
49} 19. c3 {0.00/44 61 (Qd2)} Be7 {0.00/41 62 (Qd7)} 20. Qd3 {0.00/41 54} Bd6 {
0.00/42 56} 21. Re1 {0.00/45 113} Qd7 {0.00/44 41 Draw accepted} 1/2-1/2

[/pgn]

[tpoppins]

Round 24
A46 - Polish Defence cum Colle-Zukertort System

Not a fan of the Colle but it's tons better than the Exchange French. Leads to the kind of positional play Komodo thrives on. In game 47 it proceeded fine until SF uncorked a startling 20...Qg5! Seven moves later an opposite-colored bishops ending was reached; although the queens were also present, the game never strayed far from a draw. Game 48 saw Komodo close the queenside early rather than give SF hanging pawns or an IQP, which allowed White to try for a kingside attack. Black parried the attack, forced the creation of hanging pawns after all and proceeded to win one of the them; however, in the resulting endgame his extra pawn proved indefensible thanks to the unfortunate placing of the black pieces - after 35.Be5 White was threatening to win at least an exchange with 36.Rc3. Komodo had to settle for spoiling its kingside pawn structure and relinquishing the extra pawn to reach a somewhat inferior (although still drawn) rook ending.

Score: 21-23 (+2-4=38 ?4)

[pgn][Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.06"]
[Round "47"]
[White "Komodo 10.3 64-bit"]
[Black "Stockfish 020117 x64 POPCNT"]
[Result "1/2-1/2"]
[ECO "A46"]
[Annotator "0.36;0.21"]
[PlyCount "109"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=41.2 plies; 22,546kN/s; 2,
522,042 TBAs; match-8.ctg B=42.7 plies; 21,494kN/s; 11,941,530 TBAs; match-8.
ctg} 1. Nf3 {B 0} b5 {B 0} 2. d4 {B 0} Nf6 {B 0} 3. e3 {B 0} a6 {B 0} 4. b3 {
B 0} Bb7 {B 0} 5. Bb2 {B 0} e6 {B 0} 6. Bd3 {B 0} c5 {B 0} 7. O-O {B 0} Nc6 {
B 0} 8. Nbd2 {B 0} Be7 {B 0 Both last book move} 9. dxc5 {0.36/34 208} Bxc5 {
0.21/33 176} 10. c4 {0.32/34 137 (a3)} bxc4 {0.14/32 49} 11. Nxc4 {0.29/36 207
(bxc4)} d5 {0.12/35 108} 12. Nce5 {0.23/32 35} Nxe5 {0.11/30 15} 13. Nxe5 {
0.25/31 86} O-O {0.17/36 89} 14. Rc1 {0.33/31 57} Rc8 {0.17/34 17} 15. Rc2 {
0.28/34 155} Bd6 {0.20/36 89} 16. Rxc8 {0.24/32 39} Qxc8 {0.19/39 187} 17. Qa1
{0.21/37 159} Re8 {0.19/38 96} 18. Rc1 {0.22/35 50} Qd8 {0.16/38 93 (Qb8)} 19.
Bd4 {0.24/38 96} Ne4 {0.18/38 65} 20. f3 {0.23/41 83} Qg5 {0.18/36 12} 21. f4 {
0.23/41 57} Qe7 {0.20/40 70} 22. Bxe4 {0.22/43 138 (Nc6)} dxe4 {0.16/40 94} 23.
Nc4 {0.21/42 48} f6 {0.18/40 24} 24. Nxd6 {0.26/44 199} Qxd6 {0.17/44 83} 25.
Rc4 {0.29/39 36} Rc8 {0.17/39 31 (h6)} 26. Qc3 {0.26/40 158} Rxc4 {0.17/44 91}
27. bxc4 {0.25/42 35} Bc6 {0.15/37 86 (Qc7)} 28. Qa5 {0.26/42 71 (Qb3)} Be8 {
0.12/37 64 (Bd7)} 29. h3 {0.21/44 191} h6 {0.11/39 148 (Qc6)} 30. Kf2 {0.21/41
28 (Bc5)} Qc6 {0.10/38 63} 31. Qb4 {0.21/40 36} Qc7 {0.10/39 63 (Kf7)} 32. Bc5
{0.21/39 57 (Ke1)} Kf7 {0.10/40 62} 33. Bd6 {0.20/41 172 (Ke1)} Qc6 {0.10/40 91
} 34. Bf8 {0.21/38 33} Kg8 {0.10/40 12} 35. Bc5 {0.20/40 25} Bf7 {0.10/43 58
(Kf7)} 36. Bd4 {0.20/41 125} Be8 {0.10/42 17} 37. Qb8 {0.19/38 45 (Ke1)} Kf8 {
0.10/42 62} 38. Qb4+ {0.19/42 65 (Qb3)} Kg8 {0.10/41 62} 39. a3 {0.19/44 81
(Bc5)} Kf7 {0.10/42 62 (Qc8)} 40. Bc5 {0.19/38 47} Kg6 {0.10/41 17 (Qc7)} 41.
Bf8 {0.19/40 29} Bf7 {0.10/43 55 (Qd7)} 42. Kg1 {0.18/43 73} Kh7 {0.10/45 51}
43. Kh2 {0.18/44 26} Qc8 {0.08/45 129 (Kg8)} 44. Bd6 {0.10/45 95} Qc6 {0.04/44
78} 45. Kg3 {0.13/43 54 (c5)} a5 {0.06/49 49} 46. Qc5 {0.09/48 50} Qxc5 {
0.10/41 10} 47. Bxc5 {0.09/46 14} Kg6 {0.10/51 44} 48. Bb6 {0.10/49 41} a4 {
0.08/49 9} 49. c5 {0.10/46 13} Be8 {0.08/53 44} 50. Kf2 {0.09/49 56} h5 {
0.08/52 10} 51. Bc7 {0.10/48 23 (Ke1)} h4 {0.04/60 53 (Kf5)} 52. Bd6 {0.10/51
24} Bc6 {0.04/67 80 (Kf7)} 53. g3 {0.10/53 30} hxg3+ {0.04/65 9} 54. Kxg3 {
0.09/49 21} Bd7 {0.04/68 37 (Kh5)} 55. Kf2 {0.05/50 19 (Bc7) Draw accepted}
1/2-1/2

[Event "SF 170102 vs. K 10.3, 60m+6s"]
[Site "DellT5600-PC"]
[Date "2017.01.06"]
[Round "48"]
[White "Stockfish 020117 x64 POPCNT"]
[Black "Komodo 10.3 64-bit"]
[Result "1/2-1/2"]
[ECO "A46"]
[Annotator "0.35;0.34"]
[PlyCount "79"]
[TimeControl "3600+6"]

{Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz 2593 MHz W=37.9 plies; 18,410kN/s; 5,
682,153 TBAs; match-8.ctg B=37.9 plies; 20,268kN/s; 7,258,732 TBAs; match-8.ctg
} 1. Nf3 {B 0} b5 {B 0} 2. d4 {B 0} Nf6 {B 0} 3. e3 {B 0} a6 {B 0} 4. b3 {B 0}
Bb7 {B 0} 5. Bb2 {B 0} e6 {B 0} 6. Bd3 {B 0} c5 {B 0} 7. O-O {B 0} Nc6 {B 0} 8.
Nbd2 {B 0} Be7 {B 0 Both last book move} 9. c4 {0.35/33 226} cxd4 {0.34/33 117}
10. exd4 {0.37/33 79} Qb6 {0.35/34 103 (0-0)} 11. a3 {0.29/32 90} O-O {0.36/34
197 (bxc4)} 12. Rb1 {0.43/33 148 (b4)} b4 {0.21/30 76} 13. a4 {0.47/34 231} d6
{0.22/33 231 (a5)} 14. Re1 {0.47/32 75 (Ne4)} Nb8 {0.17/27 31 (d5)} 15. Ng5 {
0.30/30 117 (Qe2)} Nbd7 {0.22/27 37} 16. h3 {0.40/28 71 (Qe2)} Rac8 {0.14/29
70 (h6)} 17. Qc2 {0.45/30 73 (Qe2)} h6 {0.16/33 45} 18. Nh7 {0.20/33 172} Rfd8
{0.00/37 71 (Rfe8)} 19. Nxf6+ {0.07/39 111} Bxf6 {0.00/38 30} 20. Ne4 {0.00/36
20} Bxe4 {0.10/39 67} 21. Rxe4 {0.00/41 134} d5 {0.00/41 155} 22. Rg4 {0.05/34
11} dxc4 {0.00/37 71} 23. bxc4 {0.07/37 64} h5 {0.00/37 122} 24. Re4 {0.06/36
24} Qd6 {0.12/40 289} 25. Rd1 {0.00/39 82} Qc7 {0.00/35 51 (Qc6)} 26. c5 {
0.00/37 71} a5 {0.06/37 55} 27. Ba6 {0.00/36 11} Rb8 {0.00/36 74} 28. Bb5 {
0.00/40 63} Bg5 {0.02/39 121} 29. d5 {0.07/38 48} Nxc5 {0.00/39 73} 30. Rc4 {
0.00/37 15} b3 {0.00/41 59} 31. Qxb3 {0.06/41 88} Rxd5 {0.00/41 47} 32. Rxd5 {
0.06/39 14} exd5 {0.00/41 23} 33. Rc2 {0.06/43 67} Nxb3 {0.00/44 72} 34. Rxc7 {
0.06/42 22} h4 {0.03/40 67} 35. Be5 {0.05/44 66} Bf6 {0.00/45 66} 36. Bxf6 {
0.00/43 14} gxf6 {0.00/41 28} 37. Rc3 {0.00/44 60 (g3)} Nd4 {0.00/47 48} 38.
Rc5 {0.00/46 24} Kg7 {0.00/47 28} 39. Rxd5 {0.00/50 48} Nxb5 {0.00/52 32} 40.
axb5 {0.00/53 11 Draw accepted} 1/2-1/2

[/pgn]