Two More Komodo 9.0 Exchange Sacrifices

[TShackel]

[pgn][Event "StrongRobin-18"]
[Site "?"]
[Date "2015.05.28"]
[Round "2.3"]
[White "Komodo 9 64-bit"]
[Black "Houdini 4 x64"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2493"]
[BlackElo "2381"]
[Annotator "0.02;-0.09"]
[PlyCount "273"]
[EventDate "2015.05.27"]
[EventType "tourn"]
[Source "Doe"]
[TimeControl "5400+20"]

{Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz 2494 MHz W=29.0 plies; 5,166kN/s;
Timsbook.ctg B=25.6 plies; 7,557kN/s; Timsbook.ctg} 1. Nf3 {B 0} d5 {B 0} 2.
d4 {B 0} Nc6 {B 0} 3. Bf4 {B 0} Bg4 {B 0} 4. Nbd2 {B 0} e6 {B 0} 5. e3 {B 0}
Bd6 {B 0} 6. Bxd6 {B 0} cxd6 {B 0} 7. h3 {B 0} Bh5 {B 0} 8. c4 {B 0} Nge7 {B 0}
9. Be2 {B 0} O-O {B 0} 10. O-O {B 0} Qd7 {B 0} 11. Rc1 {0.02/26 237} Rfc8 {-0.
09/26 327 (Rac8)} 12. Qa4 {0.03/26 295 (c5)} Rc7 {-0.06/26 208 (f6)} 13. c5 {
0.08/26 87} Rac8 {-0.07/26 514 (f6)} 14. Rfd1 {0.11/26 77 (Qa3)} f6 {-0.05/26
249 (a6)} 15. Qa3 {0.18/29 216} dxc5 {-0.11/25 79} 16. dxc5 {0.11/26 56} Qe8 {
-0.02/26 346} 17. b4 {0.22/27 88 (Nd4)} a6 {-0.10/24 66} 18. Qb2 {0.16/27 146}
Ne5 {-0.01/25 212 (e5)} 19. a3 {0.21/28 121} N7c6 {0.00/25 98} 20. Re1 {0.16/
30 92} Qf7 {0.01/25 296 (Nxf3+)} 21. Rcd1 {0.30/24 87 (Qc3)} Rd8 {0.05/26 340
(Rf8)} 22. Qb3 {0.28/27 252 (Qc3)} Nxf3+ {0.00/25 93} 23. Nxf3 {0.29/28 96}
Bxf3 {-0.02/25 131} 24. Bxf3 {0.19/26 155} f5 {-0.01/25 210 (g5)} 25. h4 {0.29/
29 53 (Be2)} h6 {-0.08/25 110 (Ne5)} 26. g3 {0.12/32 173} Qf6 {-0.05/26 126
(g5)} 27. h5 {0.16/31 77 (Kg2)} Ne5 {-0.08/26 55} 28. Be2 {0.16/31 41} Qf7 {-0.
09/27 60} 29. Qb2 {0.16/34 161} Nd7 {-0.09/27 40} 30. Kg2 {0.17/30 74} Nf6 {-0.
08/27 158} 31. Rh1 {0.19/31 135 (Qe5)} Rdc8 {-0.06/26 196} 32. Rh4 {0.19/35 396
} Re7 {-0.06/26 47 (Rc6)} 33. Rc1 {0.31/30 90 (Qe5)} Qe8 {-0.06/24 96} 34. a4 {
0.30/29 64 (Rd1)} Rec7 {-0.05/26 49 (Ne4)} 35. a5 {0.30/27 104} Qf7 {-0.05/26
61 (Kf8)} 36. Qe5 {0.30/32 185} Rc6 {-0.03/24 34 (Nd7)} 37. Rch1 {0.30/35 183
(Bd1)} Rf8 {-0.04/25 42 (Nd7)} 38. Qb2 {0.30/29 97 (Rd1)} Re8 {-0.03/26 77
(Rfc8)} 39. Rd1 {0.30/34 465 (Qe5)} Qc7 {-0.03/26 44 (Rec8)} 40. Qd4 {0.30/33
242} Rc8 {-0.03/26 73 (Qf7)} 41. Rc1 {0.30/32 145 (Bd3)} Qe7 {-0.04/26 75 (Qf7)
} 42. Bd1 {0.30/35 118 (Rd1)} R6c7 {-0.03/26 46 (Rf8)} 43. Ba4 {0.30/34 93
(Qe5)} Kh7 {-0.04/25 52 (Qf7)} 44. Rf1 {0.30/30 109 (Rd1)} Rf8 {-0.01/26 54
(Kg8)} 45. Qc3 {0.30/30 60 (Qe5)} Rd8 {-0.02/26 128 (Kg8)} 46. Bc2 {0.30/32
142 (Rd1)} Kg8 {-0.02/26 31} 47. Qe5 {0.30/32 122 (Ba4)} Qf7 {-0.03/26 94 (Ng4)
} 48. Bd3 {0.30/30 50 (Ba4)} Ng4 {-0.03/26 45 (Rdc8)} 49. Qb2 {0.26/26 43} Re8
{-0.03/26 105 (e5)} 50. Be2 {0.30/32 74} Nf6 {-0.03/27 45} 51. Rd1 {0.30/30 99
(Qe5)} Rec8 {-0.03/26 30 (Rc6)} 52. Rc1 {0.31/29 50 (Qe5)} Qe8 {-0.03/25 42
(Rc6)} 53. Qe5 {0.30/29 68} Nd7 {-0.03/25 46 (Rf7)} 54. Qd4 {0.30/30 44 (Qb2)}
Qe7 {-0.03/26 30 (Nf6)} 55. Rd1 {0.30/32 58 (Rhh1)} Rf8 {-0.03/26 41 (Nf6)} 56.
Bd3 {0.30/31 48 (Rc1)} Nf6 {-0.03/26 38} 57. Qb2 {0.30/30 79 (Qe5)} Qe8 {-0.03/
26 62 (Rfc8)} 58. Rc1 {0.31/29 77 (Qe5)} Qd7 {0.00/24 170 (Ng4)} 59. f3 {0.30/
30 71 (Be2)} Qe8 {-0.02/25 82 (Qf7)} 60. Qe5 {0.23/31 307 (Rhh1)} Rc8 {-0.03/
24 37} 61. Rch1 {0.22/29 40 (Be2)} Qc6 {-0.03/25 51 (Nd7)} 62. Bc2 {0.22/27 35}
Rcd8 {-0.03/26 60 (Nd7)} 63. Qd4 {0.22/27 59 (Rd1)} Rf7 {-0.02/25 29 (Qc7)} 64.
Qb2 {0.22/30 27 (Rd1)} Qc7 {-0.04/25 31 (Rff8)} 65. Rd1 {0.22/31 35 (Rc1)} Rff8
{-0.04/24 31 (Qc6)} 66. Bd3 {0.22/28 22 (Rc1)} Ra8 {-0.04/25 32 (Qc6)} 67. Rc1
{0.23/31 26 (Bc2)} Nd7 {-0.05/24 61 (Qc6)} 68. Rhh1 {0.22/28 38 (Rd1)} Rfc8 {
-0.06/24 52 (Nf6)} 69. Rcd1 {0.23/27 28 (Qe2)} Nf6 {-0.05/24 22} 70. Qd4 {0.22/
28 19 (Bc2)} e5 {-0.08/24 53 (Rf8)} 71. Qc3 {0.50/25 18 (Qb2)} e4 {-0.13/22 0}
72. Be2 {0.50/28 25} Kh7 {0.07/25 153 (Re8)} 73. f4 {0.55/29 17 (Qd4)} Rf8 {0.
10/25 48 (Kg8)} 74. Rd4 {0.55/29 45 (Rb1)} Rfe8 {0.09/26 85 (Qd7)} 75. Qd2 {0.
54/27 9 (Rdd1)} Rg8 {0.10/25 63 (Qf7)} 76. Bd1 {0.52/31 64 (Qb2)} Qf7 {0.09/24
34} 77. Ba4 {0.51/27 6 (Be2)} Rgd8 {-0.03/25 25 (Rgf8)} 78. Bb3 {0.51/27 8
(Qe2)} Rac8 {-0.08/25 19 (Rd7)} 79. Rh4 {0.42/28 10 (Qe2)} Rc7 {-0.11/25 20}
80. Kg1 {0.42/28 8 (Rh1)} Rcd7 {-0.14/24 36} 81. Qd1 {0.23/29 55 (Bd1)} Kg8 {
-0.13/26 20 (Qe6)} 82. Ba4 {0.23/29 20 (Qe2)} Rc7 {-0.13/27 27} 83. Bc2 {0.23/
29 14 (Qe2)} Rf8 {-0.04/26 55 (Kh7)} 84. Qf1 {0.23/27 12} Kh7 {-0.04/25 23} 85.
Bb3 {0.23/28 17 (Bd1)} Rd8 {-0.06/26 28} 86. Qd1 {0.22/29 15 (Bd1)} Rcc8 {-0.
06/25 19 (Rcd7)} 87. Qd2 {0.22/28 17 (Qe2)} Kh8 {-0.01/24 18 (Rc7)} 88. Kg2 {
0.22/26 11 (Qe2)} Rd7 {-0.03/26 20 (Kh7)} 89. Qd1 {0.22/29 18 (Kg1)} Rcd8 {-0.
05/26 23} 90. Kh1 {0.13/28 24 (Kg1)} Qe6 {-0.03/27 20 (Ng8)} 91. Kg1 {0.13/30
17} Ng4 {-0.03/26 24 (Qf7)} 92. Qd2 {0.13/30 23} Qf7 {-0.02/26 25 (Nf6)} 93.
Ba4 {0.45/27 46 (Bd1)} Rc7 {0.20/27 126 (Re7)} 94. Rxg4 {0.14/27 18} fxg4 {0.
19/25 0} 95. Qh2 {0.16/26 9} Qe6 {0.20/26 20 (Qf5)} 96. Qh4 {0.62/28 17} Rcd7 {
0.18/28 16 (Re7)} 97. Bd1 {0.62/30 16} Re7 {0.21/29 21 (Qf6)} 98. Kg2 {0.62/33
15} Ree8 {0.21/28 18 (Qf6)} 99. Bxg4 {0.62/29 18} Qf6 {0.20/30 26} 100. Qh3 {
0.58/33 15} Qc6 {0.20/29 16} 101. Bd1 {0.60/33 21} Re7 {0.20/29 18} 102. Qg4 {
0.60/34 18} Rf7 {0.20/29 16 (Red7)} 103. Bc2 {0.60/32 17} Rfd7 {0.20/29 19}
104. Qd1 {0.61/31 29 (Qh3)} Qe6 {0.20/29 18} 105. Ba4 {0.61/33 19 (Bb3)} Rc7 {
0.20/30 23 (Re7)} 106. Qh1 {0.61/31 7 (g4)} Kh7 {0.20/26 19 (Rf7)} 107. Qh4 {
0.60/33 31} Rf8 {0.20/28 17} 108. Bc2 {0.55/29 25 (Bb3)} Rd7 {0.20/28 17} 109.
Qh3 {0.55/33 17 (Bd1)} Qxh3+ {0.33/28 17} 110. Kxh3 {0.80/33 32} Rfd8 {0.26/27
0} 111. Bb3 {0.74/32 18 (Ba4)} g6 {0.68/28 20 (g5)} 112. hxg6+ {1.02/30 16}
Kxg6 {0.68/27 0} 113. g4 {0.94/30 20} Kf6 {1.15/25 24 (Kg7)} 114. Ba2 {1.00/30
16 (Kh4)} Ke6 {0.46/25 19 (Kf7)} 115. Kg2 {0.93/31 25 (Kh4)} Ke7 {1.28/26 98
(Kf7)} 116. Kg3 {1.12/30 10} Kf6 {1.29/27 70} 117. Kh4 {1.07/28 13} Kg6 {1.47/
27 81 (Kg7)} 118. Bb3 {1.09/28 13} Kg7 {1.63/26 61} 119. Kh5 {1.00/27 22} Kf6 {
1.92/25 47} 120. Ba2 {1.71/26 10} Kf7 {2.03/24 38} 121. g5 {1.76/26 8} hxg5 {
1.79/24 21} 122. Kxg5 {1.98/26 16} Ke6 {2.33/24 32 (Ke7)} 123. Rxe4+ {2.12/26
11} Kf7 {0.67/1 0} 124. Re5 {2.19/26 9} Kf8 {2.43/24 23} 125. Bb3 {2.99/28 71}
Rg7+ {2.42/23 24} 126. Kh6 {2.96/27 16} Rgd7 {2.10/23 26} 127. f5 {3.19/27 15}
Re7 {2.69/25 31} 128. Rxd5 {3.33/26 22} Rc8 {3.33/22 27} 129. Rd6 {3.68/27 25}
Rxe3 {3.61/22 25} 130. Bd5 {3.87/27 21} Rc7 {3.63/24 23} 131. f6 {4.34/26 25}
Re5 {3.10/24 22 (Re1)} 132. Bf3 {5.17/25 13 (Kg6)} Re8 {4.98/23 21} 133. Rb6 {
5.67/27 25} Rd7 {5.30/22 21 (Re3)} 134. Rxb7 {6.92/25 76 (Bxb7)} Re6 {8.83/21
21} 135. Kg5 {9.83/22 6 (Rb6)} Rd3 {10.85/24 21} 136. Bh5 {14.91/26 12 (Rb8+)}
Re5+ {10.75/27 20 (Rd8)} 137. Kh6 {19.15/24 46} 1-0[/pgn]

[pgn][Event "StrongRobin-18"]
[Site "?"]
[Date "2015.05.28"]
[Round "3.3"]
[White "Houdini 4 x64"]
[Black "Komodo 9 64-bit"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "2381"]
[BlackElo "2493"]
[Annotator "0.07;0.03"]
[PlyCount "396"]
[EventDate "2015.05.27"]
[EventType "tourn"]
[Source "Doe"]
[TimeControl "5400+20"]

{Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz 2494 MHz W=26.2 plies; 7,827kN/s;
Timsbook.ctg B=31.3 plies; 6,216kN/s; Timsbook.ctg} 1. e4 {B 0} c5 {B 0} 2.
Nf3 {B 0} d6 {B 0} 3. d4 {B 0} cxd4 {B 0} 4. Nxd4 {B 0} Nf6 {B 0} 5. Nc3 {B 0}
a6 {B 0} 6. Be3 {B 0} e6 {B 0} 7. Be2 {B 0} Be7 {B 0} 8. f4 {B 0} Qc7 {B 0} 9.
O-O {B 0} Nc6 {B 0} 10. Qe1 {B 0} O-O {B 0} 11. Kh1 {B 0} Nxd4 {B 0} 12. Bxd4 {
B 0} b5 {B 0} 13. a3 {B 0} Nd7 {0.03/25 80} 14. Bf3 {0.07/26 378 (Rd1)} Bb7 {
-0.09/26 72} 15. Rd1 {0.01/25 313 (Qg3)} e5 {-0.10/27 74 (Rad8)} 16. Be3 {-0.
02/25 246 (fxe5)} exf4 {-0.11/25 104} 17. Bxf4 {-0.01/24 128} Ne5 {-0.07/26 333
} 18. Be2 {-0.03/25 160} Rae8 {-0.06/26 319} 19. Qd2 {-0.04/24 246} Rc8 {-0.10/
25 193} 20. Bg3 {-0.04/25 212 (Qd4)} h6 {-0.14/26 190 (Rfe8)} 21. h3 {-0.04/25
113 (Kg1)} Qb6 {-0.10/25 214 (Qc5)} 22. Bf4 {0.03/25 159} Qc5 {-0.10/26 146
(Qc7)} 23. Bxh6 {0.50/22 79 (Qe1)} gxh6 {-0.20/25 48 (Nc4)} 24. Qxh6 {0.63/21 0
} d5 {-0.31/25 43} 25. Nxd5 {0.42/23 56 (Rf5)} Bxd5 {0.12/30 78} 26. Rxd5 {0.
42/22 0} Qc6 {0.12/31 45} 27. Qh5 {0.61/25 57} Ng6 {0.39/26 41} 28. Bd3 {0.61/
24 0} Kg7 {0.23/30 255 (Rcd8)} 29. Rdf5 {0.57/25 108} Qe6 {0.23/31 114} 30. e5
{0.81/24 138} Rc5 {0.44/28 93} 31. Be4 {0.54/25 142} Rc4 {0.46/30 302} 32. R1f4
{0.47/26 124} Rxe4 {0.42/30 160} 33. Rxe4 {0.47/24 0} Rh8 {0.41/31 523 (Qa2)}
34. Qf3 {0.92/24 128} Rh6 {0.37/31 283 (Rd8)} 35. c3 {0.70/26 111 (Rg4)} Nh4 {
0.10/35 85 (Bd8)} 36. Rg4+ {1.02/23 28} Rg6 {0.10/36 92 (Ng6)} 37. Rf6 {0.93/
22 1} Qxg4 {0.10/36 150 (Rxg4)} 38. Rxf7+ {1.08/21 1} Kg8 {0.15/31 43} 39. Qa8+
{1.08/20 1} Kxf7 {0.10/31 42} 40. hxg4 {1.05/19 0} Re6 {0.10/33 188} 41. Qe4 {
0.98/27 103} Kg7 {0.20/33 473 (Bd8)} 42. Qd5 {1.18/26 86} Kf7 {0.18/29 31} 43.
Qd3 {1.12/28 75} Bf8 {0.21/31 156 (Kg7)} 44. g5 {1.09/26 68 (a4)} Ng6 {0.05/30
54} 45. Qf5+ {0.97/28 265} Ke7 {0.05/31 26} 46. Kh2 {0.99/28 49 (g3)} Bg7 {0.
05/32 38} 47. Kh3 {0.87/27 43} Bxe5 {0.05/33 85} 48. g3 {0.96/28 53} Bd6 {0.05/
33 36} 49. Qf2 {0.99/26 63 (Kg2)} Kd7 {0.05/34 50} 50. a4 {0.98/27 63 (Qa7+)}
Ne7 {0.05/34 56 (Re5)} 51. Qa7+ {1.06/27 159} Bc7 {0.05/35 33} 52. Qd4+ {0.92/
26 65 (axb5)} Bd6 {0.05/35 56 (Rd6)} 53. Qg4 {1.14/26 45 (axb5)} Bc7 {0.05/32
45} 54. Kh4 {1.20/26 39 (axb5)} Be5 {0.05/30 28 (Bd6)} 55. Qf3 {1.08/26 174
(axb5)} Bc7 {0.05/32 45} 56. Kg4 {1.07/26 65 (Kh5)} Rd6 {0.05/35 66} 57. Kh5 {
0.96/27 111 (Qb7)} Rd5 {0.05/30 30} 58. Qf6 {0.71/26 357 (axb5)} Bd6 {0.05/32
80} 59. Qf2 {0.61/25 64 (Qf3)} Rd3 {0.05/32 87} 60. Qf1 {0.67/23 53 (axb5)} Rd5
{0.05/32 40} 61. Kg4 {0.57/24 227 (axb5)} Rc5 {0.05/30 64 (Re5)} 62. a5 {1.07/
22 43 (Qg2)} Bc7 {0.05/31 62 (Rc6)} 63. Qd3+ {0.35/26 32} Rd5 {0.05/33 42} 64.
Qe4 {0.29/26 90 (Qe3)} Be5 {0.05/26 17 (Rd6)} 65. Kf3 {0.97/26 43} Bg7 {0.19/
30 190 (Ke8)} 66. Qg4+ {1.12/27 51} Kd6 {0.25/27 28} 67. Qf4+ {1.11/27 41 (Kg2)
} Kd7 {0.05/34 61} 68. Qe3 {1.09/28 33 (Qe4)} Rd6 {0.05/35 31} 69. Kg4 {1.12/
27 27} Re6 {0.05/35 20} 70. Qa7+ {1.06/29 36} Kd8 {0.05/32 27 (Ke8)} 71. Qc5 {
1.07/27 65 (Kh5)} Ke8 {0.05/36 39} 72. Kh5 {1.05/28 27} Rg6 {0.05/35 31 (Rc6)}
73. Qe3 {1.08/29 28 (Qa7)} Rc6 {0.05/37 27 (Kd7)} 74. Qf4 {1.09/29 33 (Qe4)}
Rc4 {0.05/39 71 (Kd7)} 75. Qd2 {1.09/29 27 (Qf3)} Rc6 {0.05/38 31} 76. Qe2 {1.
09/28 31 (Qe3)} Kf7 {0.05/35 19 (Kd7)} 77. Qf3+ {1.13/27 29 (Qe4)} Ke6 {0.05/
32 15} 78. Qg4+ {1.05/26 58 (Qe3+)} Kd6 {0.05/32 17} 79. Qe2 {1.06/28 34 (Qe4)}
Be5 {0.05/35 31} 80. Kg4 {1.11/27 40 (Qe4)} Ke6 {0.05/31 21 (Rc8)} 81. Kf3 {1.
03/27 31 (Kh5)} Rc5 {0.05/28 15 (Rd6)} 82. Qe4 {1.03/26 26} Rc8 {0.05/29 20
(Rc6)} 83. Ke2 {1.01/24 29 (g6)} Rc6 {0.05/33 37} 84. Kd3 {1.01/26 46} Kd6 {0.
05/31 16} 85. Kc2 {1.01/26 25} Ke6 {0.05/33 39} 86. Kc1 {0.98/26 32 (g6)} Kd6 {
0.05/32 35} 87. Kd2 {0.99/27 50 (Kb1)} Ke6 {0.05/32 38} 88. Kc2 {1.06/27 29}
Kd6 {0.05/32 25} 89. Kb1 {0.95/26 27} Ke6 {0.05/33 23} 90. Ka2 {0.91/27 26 (g6)
} Kd6 {0.05/34 39} 91. Kb3 {0.81/27 32 (Qe3)} Ke6 {0.05/33 33} 92. g4 {0.82/27
28 (g6)} Kd6 {0.05/33 26} 93. Ka2 {0.76/28 38 (Kc2)} Ke6 {0.05/33 28} 94. Ka3 {
0.74/27 23 (Kb1)} Rc4 {0.05/32 20} 95. Qe3 {0.75/27 26 (Qh7)} Rc6 {0.05/34 55}
96. Ka2 {0.63/26 52 (Qe4)} Ng6 {0.05/32 27 (Rd6)} 97. Qd3 {0.87/28 32} Ke7 {0.
05/32 19 (Ne7)} 98. c4 {1.00/26 41 (Qd5)} bxc4 {0.05/28 25} 99. Qd5 {1.00/21 0}
Rd6 {0.05/28 16} 100. Qxc4 {1.30/26 45} Kd7 {0.11/28 26 (Kd8)} 101. Qe4 {1.24/
26 35 (Qe2)} Kc7 {0.16/29 42 (Bd4)} 102. b4 {1.17/27 24} Bd4 {0.15/27 17} 103.
Kb3 {1.37/26 37} Bg1 {0.17/27 34 (Be5)} 104. Qc4+ {1.37/26 30} Kd8 {0.16/29 20}
105. b5 {1.33/26 37 (Qc2)} axb5 {0.14/27 29} 106. Qxb5 {1.37/26 23} Ne7 {0.13/
27 15} 107. Qb8+ {1.39/25 23} Kd7 {0.13/27 11} 108. Qb7+ {1.39/26 56} Kd8 {0.
13/26 9 (Ke6)} 109. Qa8+ {1.39/25 56 (Qh1)} Kc7 {0.13/26 12} 110. a6 {1.40/25
29} Nc6 {0.17/27 21} 111. Qb7+ {1.39/25 22} Kd8 {0.18/26 9} 112. Qf7 {1.34/25
41} Ne7 {0.11/25 21} 113. Qf3 {1.35/26 24} Ba7 {0.11/27 23} 114. Kc2 {1.35/25
35 (Qa8+)} Nc6 {0.11/28 19} 115. Qf8+ {1.27/25 52} Kd7 {0.10/29 25} 116. Qf7+ {
1.29/25 22} Ne7 {0.10/27 12} 117. Qb3 {1.29/26 42 (Qf1)} Nc6 {0.10/28 23} 118.
Kb1 {1.29/25 29 (Qb7+)} Re6 {0.10/28 27 (Bd4)} 119. Qd5+ {1.30/26 24} Rd6 {0.
10/28 30} 120. Qf7+ {1.27/26 28 (Qg8)} Ne7 {0.10/29 34} 121. Qf1 {1.27/26 26
(Qc4)} Kc7 {0.10/28 29 (Kd8)} 122. Ka2 {1.28/25 24 (Qc4+)} Nc6 {0.05/30 18
(Rc6)} 123. Kb3 {1.25/24 44 (Qc4)} Bc5 {0.05/30 23} 124. g6 {1.12/24 26} Rd7 {
0.05/31 23} 125. Qf6 {1.11/26 32} Bd4 {0.05/32 20} 126. Qf5 {0.94/25 25 (Qf8)}
Be5 {0.05/29 13 (Bg7)} 127. Ka3 {0.89/24 20} Re7 {0.05/33 19 (Bg7)} 128. Qb1 {
0.95/25 23 (Ka4)} Bd6+ {0.05/30 14 (Bg7)} 129. Ka4 {0.97/25 33} Be5 {0.05/33 25
} 130. Qb7+ {1.09/27 29 (Qd3)} Kd6 {0.05/31 11} 131. Qb5 {0.95/26 25} Kc7 {0.
05/32 19} 132. Qc5 {1.05/25 21} Bd4 {0.05/35 23} 133. Qc4 {1.08/25 20} Re1 {0.
05/31 15} 134. g5 {1.08/25 37} Re7 {0.05/33 30 (Re8)} 135. Qg8 {0.88/25 55
(Qf1)} Bg7 {0.05/34 23 (Rg7)} 136. Kb5 {0.70/27 19 (Qd5)} Re5+ {0.05/35 30}
137. Kc4 {0.70/25 0} Re4+ {0.05/34 11 (Re7)} 138. Kd3 {0.57/25 41 (Kc5)} Re7 {
0.05/33 20} 139. Qb3 {0.59/25 24} Bd4 {0.05/31 13} 140. Qb5 {0.39/26 121} Kd6 {
0.05/31 29 (Bg7)} 141. Qf5 {0.87/23 18 (Kc2)} Re3+ {0.05/31 19} 142. Kc2 {0.77/
25 66} Re2+ {0.05/32 20} 143. Kb3 {0.91/25 30} Re3+ {0.05/32 23 (Rf2)} 144. Ka4
{0.47/25 19} Re7 {0.05/31 15} 145. Qd3 {0.47/24 30 (Qf3)} Kc7 {0.05/33 17} 146.
Qc4 {0.63/25 29 (Qg3+)} Kd6 {0.05/29 10 (Kb6)} 147. Qa2 {0.40/25 21 (Qb5)} Kc5
{0.05/34 23} 148. Qa3+ {0.48/25 26 (Qb3)} Kb6 {0.05/35 22} 149. Qb3+ {0.35/26
27} Kc7 {0.05/35 24} 150. Qb5 {0.27/26 66} Kd6 {0.05/34 29 (Bg7)} 151. Qf5 {0.
41/25 20} Be5 {0.05/31 13 (Bg7)} 152. Qc2 {0.35/25 25 (Qd3+)} Bd4 {0.05/31 15
(Bg7)} 153. Kb3 {0.36/25 15 (Qh2+)} Rd7 {0.05/33 32 (Bg7)} 154. Kc4 {0.50/24
22 (Qd2)} Kc7 {0.05/31 19} 155. Qf5 {0.40/25 26} Rd6 {0.05/33 31 (Bg7)} 156.
Kd3 {0.39/23 47 (Qf7+)} Rd7 {0.05/32 42} 157. Qb5 {0.32/24 50} Rg7 {0.05/34 30}
158. Kc4 {0.31/25 14 (Qf5)} Rxg6 {0.05/30 10} 159. Qb7+ {0.31/26 16} Kd6 {0.05/
30 12 (Kd8)} 160. Qh7 {0.33/24 58} Re6 {0.05/31 26} 161. g6 {0.29/23 20 (Qf5)}
Re7 {0.05/29 13 (Re3)} 162. Qh2+ {0.65/23 22} Kd7 {0.05/30 24 (Be5)} 163. Qh3+
{0.48/26 52} Kd6 {0.05/31 19} 164. Qa3+ {0.74/25 13 (Qh6)} Ke6 {0.05/33 12
(Kd7)} 165. Qc1 {0.29/24 21 (Qh3+)} Kd7 {0.05/33 39} 166. Qh6 {0.30/24 16 (Qa3)
} Be5 {0.05/29 14 (Kc7)} 167. Qe3 {0.38/24 13} Bd4 {0.05/32 31 (Bg7)} 168. Qg3
{0.34/25 13 (Qf4)} Rg7 {0.05/31 26} 169. Kb5 {0.20/24 23} Re7 {0.05/30 11
(Na7+)} 170. Qg2 {0.36/23 15 (Qf3)} Re5+ {0.05/28 11} 171. Kc4 {0.36/22 0 (Ka4)
} Rc5+ {0.05/29 14} 172. Kd3 {0.23/23 16 (Kb3)} Bg7 {0.05/28 16} 173. Qf1 {0.
21/25 48 (Qf2)} Rd5+ {0.05/29 28 (Re5)} 174. Kc4 {0.27/25 22} Rd4+ {0.05/33 19
(Re5)} 175. Kc5 {0.18/26 18} Kc7 {0.05/34 17} 176. Qf7+ {0.15/26 16} Rd7 {0.05/
32 9} 177. Qf4+ {0.11/26 17 (Qf3)} Be5 {0.05/34 26} 178. Qe4 {0.13/27 13 (Qc4)}
Bd4+ {0.05/32 15} 179. Kb5 {0.10/26 15} Na7+ {0.05/33 21} 180. Kc4 {0.09/26 21
(Ka4)} Nc6 {0.05/32 17} 181. Qb1 {0.08/25 19 (Qf5)} Ne5+ {0.05/31 26} 182. Kb3
{0.09/26 16} Kb6 {0.05/31 12 (Nc6)} 183. Ka4+ {0.11/26 14} Ka7 {0.05/34 39
(Kxa6)} 184. Qb5 {0.15/26 14 (Qf5)} Rc7 {0.05/36 15} 185. Qd5 {0.13/29 14} Rd7
{0.05/35 17} 186. Qg2 {0.13/28 14 (Qg8)} Nc4 {0.05/35 37 (Nd3)} 187. Kb5 {-0.
01/27 27 (Qe4)} Rc7 {0.05/33 19} 188. Qd5 {0.06/27 18} Bf6 {0.05/34 17 (Na3+)}
189. Qd3 {-0.03/27 15 (Qg2)} Be5 {0.05/33 15} 190. Qh3 {-0.03/28 15 (Qd5)} Nd6+
{0.00/33 13 (Bd4)} 191. Kb4 {-0.03/30 14 (Ka4)} Rc4+ {0.00/34 29 (Nc4)} 192.
Kb3 {-0.03/29 2} Rc3+ {0.00/38 31} 193. Qxc3 {-0.03/28 0} Bxc3 {0.00/36 11}
194. Kxc3 {0.00/27 0} Nf5 {0.00/38 19 (Ne8)} 195. Kd3 {0.00/50 15} Ne7 {0.00/
37 14 (Kxa6)} 196. g7 {0.00/50 16} Kxa6 {0.00/35 13} 197. Kc4 {0.00/64 17 (Ke4)
} Kb7 {-0.08/36 17 (Kb6)} 198. Kc5 {0.00/63 92 (Kd3)} Kc7 {-0.08/40 23} 1/2-1/2[/pgn]

In the first game, it looked like the game was petering out to a draw with both engines moving pieces back and forth not making any progress. But then out of the blue, 94. Rxg4!!! was an amazing move. the point is after fxg4 then Qh2-h4 and Bd1xg4 with mobile pawns and active pieces. I've had many games where komodo has sacrificed for positional reasons. I hope no one thinks komodo is boring! komodo 9.0 has clearly made great strides.

In the second game it was Komodo who was defending after Houdini made an interesting sacrifice 23. Bxh6. Komodo thought it was fine for the most part but its evaluation started to give white a little compensation. But to defend the most solidly, komodo played the defensive exchange sacrifice 32...Rxe4! eliminating the crucial dangerous bishop. Then after 37...Qxg4 38. Rxf7+ Kg8 39. Qa8+ Kxf7 40. hxg4 Komodo clearly had a good understanding of piece imbalances because it saw a drawn game the rest of the game, while houdini kept thinking it was better.

These were very interesting games. I'm not going to promise that komodo will sacrifice every game, and if it did it would probably lose. However, it has shown an ability to sacrifice pawns for a lead in development with the black king in the center, and it has shown many positional exchange sacrifices which give positional compensation to komodo. So I think Komodo 9.0 has made a dramatic inmprovement in the style of the engine, when I always used to think komodo 8 and prior were boring.

Hope you enjoyed and let me known if you have any questions about the games.

Sincerely,

Tim.

[reflectionofpower]

Stockfish 6 is the only one that saw it besides Rxg4 at depth 33.

[TShackel]

Stockfish 6 is the only one that saw it besides Rxg4 at depth 33.

Yes, I was interested to check and see if stockfish would see it. And it did after several seconds. But houdini completely missed it. And what makes it interesting is that it's not easy to calculate it to a proper conclusion, but rather it is a positional gamble that worked out. Even Komodo's own evaluation didn't show a high score with Rxg4 until several moves later. So in a sense it specuated wit a sacrifice not knowing a concrete win (since it's evaluation was only slightly positive for white).

That's pretty interesting.

Sincerely,

Tim.

[reflectionofpower]

Stockfish 6 is the only one that saw it besides Rxg4 at depth 33.

Yes, I was interested to check and see if stockfish would see it. And it did after several seconds. But houdini completely missed it. And what makes it interesting is that it's not easy to calculate it to a proper conclusion, but rather it is a positional gamble that worked out. Even Komodo's own evaluation didn't show a high score with Rxg4 until several moves later. So in a sense it specuated wit a sacrifice not knowing a concrete win (since it's evaluation was only slightly positive for white).

That's pretty interesting.

Sincerely,

Tim.

It seemed like Houdini in its eval of the position would ponder for a second or 2 on Rxg4 but then it would go on. I bet it would find it if you gave it enough time. I have an i7 and it's a slim design so cooling is not so great so I can not really analyze the position for lengthy periods of time.

I just installed Vitruvius 1.11_HEM and it finds it instantly! Interestingly this engine was made with this type of sacrificing in mind.

This is off it's homepage:

"Vitruvius is built on the skeleton structure of the free Ippolit programs (RobboLito, Igorrit, IvanHoe) from which it inherits certain caracteristics and pecularties. It is however a chess engine in its own right exhibiting a very original style of play with a highly speculative tendency. Thanks to its finely tuned positional vision, Vitruvius shows a readiness to sacrifice a pawn or two, the exchange and sometimes even a whole piece, for purely positional compensation."

[zullil]

I just installed Vitruvius 1.11_HEM and it finds it instantly! Interestingly this engine was made with this type of sacrificing in mind.

So it's not at all surprising that it chooses the sac.

But the engine also needs to avoid such sacs when they lose.

[reflectionofpower]

I just installed Vitruvius 1.11_HEM and it finds it instantly! Interestingly this engine was made with this type of sacrificing in mind.

So it's not at all surprising that it chooses the sac.

But the engine also needs to avoid such sacs when they lose.

True, there is always a price to pay if you don't heed all the complications when looking at some type of compensation.

[Lyudmil Tsvetkov]

The interesting thing is how frequently Komodo uses its superior imbalance evaluation to perform well against engines clueless in this field.

You would say imbalances occur relatively rarely, but obviously this is not so. You play what you know and any strong point in an engine's play might gain much strength, no matter that the specific feature might seem rare.

If you know imbalances well, you can play imbalances every 4th game, or even every second game.
Same with other salient features.

[Lyudmil Tsvetkov]

Look also at this position from the first game:

[d]r5r1/1pq3pk/p4n1p/P1Pp1p1P/1P1RpP2/4P1P1/3Q2K1/3B3R b - - 6 76

still, early into the mg, no winning captures, no apparent tactical lines, no mates, a relatively quiet position, where search does not help much and engines should also significantly rely on their eval.

Houdini gives here 0.0 score, Komodo 50cps white advantage, while for me it is obvious white has at least 100-150cps advantage in terms of eval at the root.

Look how much superior Komodo's eval than Houdini's is. Same goes true for SF, its eval is also far superior than Houdini's.

So that everybody says search is the only thing or the most important thing that matters for engines, but this is not so - without good eval most of the lines you will be searching will be random, and you will be picking the wrong lines.

Good to see engines make progress also in the field of eval.

[zullil]

Stockfish 6 is the only one that saw it besides Rxg4 at depth 33.

Yes, I was interested to check and see if stockfish would see it. And it did after several seconds. But houdini completely missed it. And what makes it interesting is that it's not easy to calculate it to a proper conclusion, but rather it is a positional gamble that worked out. Even Komodo's own evaluation didn't show a high score with Rxg4 until several moves later. So in a sense it specuated wit a sacrifice not knowing a concrete win (since it's evaluation was only slightly positive for white).

That's pretty interesting.

Sincerely,

Tim.

Was curious what Stockfish would show with a deep search of the key position:
[D]3r3k/1pr2qp1/p6p/P1Pp1p1P/BP1RpPnR/4P1P1/3Q4/6K1 w - - 41 94

Stockfish finds the exchange sac at depth 32:

Code: Select all

info depth 31 seldepth 32 multipv 1 score cp 24 nodes 44221264 nps 10501368 hashfull 29 tbhits 0 time 4211 pv a4d1 g4f6 d1b3 h8h7 d2d1 f7e6 d1e2 c7c8 h4h2 d8d7 h2h1 d7d8 h1h4 h7h8 e2g2 c8c7 g2d2 h8h7 h4h2 c7e7 d2d1 e7d7 h2h1 d7c7 h1h3 c7c8 h3h2 c8c7 h2g2 c7d7 g2d2 e6f7
info depth 32 currmove a4d1 currmovenumber 1
info depth 32 currmove a4b3 currmovenumber 2
info depth 32 seldepth 36 multipv 1 score cp 30 lowerbound nodes 86133657 nps 14418087 hashfull 52 tbhits 0 time 5974 pv h4g4
info depth 32 currmove h4g4 currmovenumber 1
info depth 32 seldepth 43 multipv 1 score cp 36 lowerbound nodes 118327094 nps 16123054 hashfull 65 tbhits 0 time 7339 pv h4g4
info depth 32 currmove h4g4 currmovenumber 1
info depth 32 seldepth 47 multipv 1 score cp 45 lowerbound nodes 178080186 nps 18232843 hashfull 88 tbhits 0 time 9767 pv h4g4
info depth 32 currmove h4g4 currmovenumber 1
info depth 32 currmove d2d3 currmovenumber 6
info depth 32 seldepth 48 multipv 1 score cp 37 upperbound nodes 244057586 nps 19861457 hashfull 109 tbhits 0 time 12288 pv h4g4 f5g4
info depth 32 currmove h4g4 currmovenumber 1
info depth 32 seldepth 48 multipv 1 score cp 48 lowerbound nodes 272668210 nps 20459834 hashfull 119 tbhits 0 time 13327 pv h4g4
info depth 32 currmove h4g4 currmovenumber 1
info depth 32 currmove g1f1 currmovenumber 4
info depth 32 currmove c5c6 currmovenumber 25
info depth 32 currmove d2c2 currmovenumber 26
info depth 32 currmove a4c6 currmovenumber 27
info depth 32 seldepth 52 multipv 1 score cp 59 nodes 330960483 nps 21265853 hashfull 136 tbhits 0 time 15563 pv h4g4 f5g4 d2h2 c7c6 h2h4 c6f6 a4d1 f7e6 d1g4 e6c6 g4d1 f6f8 d1b3 d8d7 h4g4 f8d8 g4f5 c6f6 f5h3 f6f8 g1f2 f8f6 f2g2 f6f7 h3g4 f7f6 g4d1 f6e6 g3g4 h8h7 g2g3 e6f7 d4d2

The evaluation gets as high as 68 centipawns in favor of White:

Code: Select all

info depth 47 seldepth 74 multipv 1 score cp 68 nodes 12645719298 nps 26352715 hashfull 999 tbhits 0 time 479864 pv h4g4 f5g4 d2h2 f7f6 a4d1 d8g8 g1f2 c7d7 d1g4 d7d8 h2h3 f6c6 g4d1 g8f8 d1b3 f8f7 f2g2 f7c7 h3g4 c7d7 g2f1 d7c7 f1f2 c7d7 f2g2 h8h7 g4h3 h7g8 g2f2 g8h8 b3c2 h8g8 c2d1 g8h8 h3h2 c6e6 h2h4 e6f6 h4f6 g7f6 d1g4 d7e7 d4d2 h8g8 g4f5 g8f7 d2d1 f7f8 g3g4 f8f7 f5g6 f7g7 d1d4

But then the evaluation drops, enough so that Stockfish switches away from RxN, before returning to it again:

Code: Select all

info depth 52 seldepth 92 multipv 1 score cp 37 nodes 137575161783 nps 27931587 hashfull 999 tbhits 0 time 4925433 pv h4g4 f5g4 d2h2 f7f5 h2h4 d8g8 a4d1 g7g5 h5g6 h6h5 d1b3 c7d7 b4b5 g8c8 b5b6 c8c5 b3a4 c5c1 g1g2 d7g7 a4e8 c1c2 g2f1 c2c1 f1e2 c1c5 e8f7 g7f7 g6f7 f5f7 h4g5 h8h7 g5e5 h5h4 g3h4 g4g3 e2f1 c5a5 f1g2 a5b5 g2g3 f7g6 e5g5 g6f7 g3h3 a6a5 g5e5 b5b3 e5d5 b3e3 h3g4 f7g7 g4f5 g7f8 f5e6 f8g8 e6d6 g8d8 d6c5 e3c3 c5b5 d8d5 d4d5 h7g6 h4h5 g6h6 d5d7 c3b3 b5a5 h6h5 d7e7 e4e3 e7b7
info depth 53 currmove h4g4 currmovenumber 1
info depth 53 currmove g1h1 currmovenumber 5
info depth 53 currmove d2g2 currmovenumber 7
info depth 53 seldepth 92 multipv 1 score cp 31 upperbound nodes 144727496258 nps 27919712 hashfull 999 tbhits 0 time 5183703 pv h4g4 f5g4
info depth 53 currmove h4g4 currmovenumber 1
info depth 53 currmove g1h1 currmovenumber 5
info depth 53 currmove d2g2 currmovenumber 7
info depth 53 currmove a4c6 currmovenumber 27
info depth 53 currmove d2a2 currmovenumber 29
info depth 53 currmove a4b5 currmovenumber 30
info depth 53 currmove d4e4 currmovenumber 31
info depth 53 seldepth 92 multipv 1 score cp 25 upperbound nodes 185752825284 nps 27900030 hashfull 999 tbhits 0 time 6657800 pv h4g4 f5g4
info depth 53 currmove h4g4 currmovenumber 1
info depth 53 seldepth 92 multipv 1 score cp 31 lowerbound nodes 200814086236 nps 28080910 hashfull 999 tbhits 0 time 7151267 pv h4g4
info depth 53 currmove h4g4 currmovenumber 1
info depth 53 seldepth 92 multipv 1 score cp 45 lowerbound nodes 205173625409 nps 28098805 hashfull 999 tbhits 0 time 7301863 pv h4g4
info depth 53 currmove h4g4 currmovenumber 1
info depth 53 currmove g1f1 currmovenumber 6
info depth 53 seldepth 92 multipv 1 score cp 34 upperbound nodes 213697141684 nps 28147366 hashfull 999 tbhits 0 time 7592083 pv h4g4 f5g4
info depth 53 currmove h4g4 currmovenumber 1
info depth 53 currmove h4h2 currmovenumber 6
info depth 53 currmove d2f2 currmovenumber 9
info depth 53 currmove d2h2 currmovenumber 10
info depth 53 currmove d2c3 currmovenumber 11
info depth 53 currmove d2b2 currmovenumber 12
info depth 53 currmove g1h1 currmovenumber 13
info depth 53 seldepth 92 multipv 1 score cp 20 nodes 284583972927 nps 28012643 hashfull 999 tbhits 0 time 10159126 pv a4d1 g4f6 h4h2 f7e6 d1b3 f6g4 h2h3 g4f6 h3h4 c7c8 h4h2 h8h7 d2e2 d8d7 h2h1 d7d8 d4d2 c8c7 g1g2 f6g4 d2d1 e6f7 h1h3 f7f6 d1d4 f6f7 g2g1 f7e6 b3d1 g4f6 h3h2 h7h8 e2f1 h8h7 f1h3 d8g8 h3g2 c7d7 g2b2 d7d8 d1b3 g8e8 b2d2 e8e7 d2d1 e7d7 b3a4 d7e7 d1d2 e6f7 a4b3 e7d7 d2e2 f6g4
info depth 54 currmove a4d1 currmovenumber 1
info depth 54 currmove g1f1 currmovenumber 6
info depth 54 currmove a4c6 currmovenumber 7
info depth 54 currmove b4b5 currmovenumber 29
info depth 54 currmove h4g4 currmovenumber 30
info depth 54 seldepth 92 multipv 1 score cp 27 lowerbound nodes 312037088894 nps 27924381 hashfull 999 tbhits 0 time 11174360 pv h4g4
info depth 54 currmove h4g4 currmovenumber 1
info depth 54 currmove d2e1 currmovenumber 9
info depth 54 currmove a4c2 currmovenumber 25
info depth 54 currmove c5c6 currmovenumber 26
info depth 54 currmove d2d3 currmovenumber 27
info depth 54 currmove d2c1 currmovenumber 28
info depth 54 currmove d2b2 currmovenumber 29
info depth 54 currmove d2c2 currmovenumber 30
info depth 54 currmove d4e4 currmovenumber 31
info depth 54 seldepth 92 multipv 1 score cp 25 nodes 314055955372 nps 27920505 hashfull 999 tbhits 0 time 11248219 pv h4g4 f5g4 d2h2 f7f5 a4d1 d8g8 h2h4 g7g5 h5g6 h6h5 d1b3 c7d7 b4b5 g8c8 b5b6 c8c5 b3a4 c5c1 g1g2 d7g7 a4e8 c1c2 g2f1 c2c1 f1e2 c1c5 e8f7 g7f7 g6f7 f5f7 h4g5 h8h7 g5e5 c5b5 d4d2 h7g6 d2c2 f7f6 e5b8 b5a5 b8b7 a5c5 e2d2 f6f8 b7a6 c5c2 d2c2 f8c5 c2d1 c5c6 d1d2 h5h4 f4f5 g6f5 g3h4 g4g3 a6e2 f5f6 e2h5 c6c5 h5g5 f6f7 g5g3 c5b4 d2e2 b4b2 e2f1 b2b1 f1g2 b1b6 g3f4 f7e8

White won the game, but I'm certainly not convinced there is a win here for White, with best play by Black.

Will wait for Lyudmil T. to arrive and present his assessment, but I'm not inclined to criticize Houdini's evaluation just yet.

[reflectionofpower]

Stockfish 6 is the only one that saw it besides Rxg4 at depth 33.

Yes, I was interested to check and see if stockfish would see it.

That's pretty interesting.

Sincerely,

Tim.

Was curious what Stockfish would show with a deep search of the key position:
[D]3r3k/1pr2qp1/p6p/P1Pp1p1P/BP1RpPnR/4P1P1/3Q4/6K1 w - - 41 94

Stockfish finds the exchange sac at depth 32:


White won the game, but I'm certainly not convinced there is a win here for White, with best play by Black.

Will wait for Lyudmil T. to arrive and present his assessment, but I'm not inclined to criticize Houdini's evaluation just yet.

Most of the strongest engines evaluate it as = which i agree with. Position looks pretty locked up to me and neither side can really make any significant inroad to victory.