OpenChess

I thought this was a very interesting game...

[Event "Houdini vs IvanHoe, Blitz 15m+10s"]
[Site "W0111D0001"]
[Date "2011.01.15"]
[Round "22"]
[White "IvanHoe 0B.01.0E x64"]
[Black "Houdini 1.5 x64"]
[Result "0-1"]
[ECO "B53"]
[Annotator "0.19;0.00"]
[PlyCount "254"]
[TimeControl "900+10"]

{AMD Phenom(tm) II X4 940 Processor 3010 MHz W=21.8 plies; 6,344kN/s; 15,863,
339 TBAs B=21.9 plies; 6,966kN/s} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 {
Both last book move} 5. Qe3 {0.19/21 55} Nf6 {0.00/21 28} 6. Nc3 {0.15/22 53
(Be2)} g6 {0.01/22 41} 7. Be2 {0.13/23 130} Bg7 {0.00/22 35} 8. O-O {0.07/22
43 (h3)} O-O {0.00/20 24} 9. h3 {0.07/21 10} Be6 {0.05/20 28} 10. Rd1 {0.14/21
39} Qa5 {0.02/20 30 (Rc8)} 11. Ng5 {0.22/22 37 (Bd2)} Bd7 {0.02/20 35} 12. Nd5
{0.22/21 8 (Bd2)} Nxd5 {0.03/21 22} 13. exd5 {0.20/20 7} Nb4 {0.05/23 41} 14.
Qd2 {0.20/21 10} Qb6 {0.06/22 26} 15. a4 {0.22/23 38 (c3)} Na6 {0.05/21 24 (a5)
} 16. Ra3 {0.42/21 28 (Ne4)} Qc7 {0.11/20 86} 17. a5 {0.43/20 15} Bf5 {0.25/20
99 (Bh6)} 18. c3 {0.50/21 48} Rac8 {0.23/20 37 (Bh6)} 19. Qe3 {0.58/20 6} Qc5 {
0.29/21 32} 20. Qf3 {0.72/21 22} Qc7 {0.29/21 34} 21. Be3 {0.72/21 8 (Ne4)} Nc5
{0.46/19 26 (Qb8)} 22. b4 {0.67/20 6} Nd7 {0.56/21 24} 23. Bxa7 {0.63/20 10}
Ne5 {0.53/21 16 (b6)} 24. Qf4 {0.96/22 29} Nc4 {0.47/21 16} 25. Ra2 {1.04/21 32
} b6 {0.73/20 21 (h6)} 26. axb6 {1.13/21 21} Nxb6 {0.72/19 0} 27. b5 {1.13/21 6
} Nd7 {0.76/20 26 (Qb7)} 28. c4 {1.22/21 21 (Nf3)} Ra8 {0.82/22 35} 29. Qe3 {
1.30/22 15} Nc5 {0.84/22 15 (Bf6)} 30. b6 {1.58/20 5} Qb7 {0.82/23 22} 31. Nf3
{1.49/20 6} Bf6 {0.87/22 60 (Rfe8)} 32. Nd4 {1.84/23 55} Bd7 {1.07/22 23} 33.
Nc6 {1.78/22 36 (Nb3)} Rfe8 {0.82/20 14 (Rae8)} 34. Bf3 {1.69/21 31} Qc8 {0.80/
21 14} 35. Rb1 {1.70/21 76 (Ra5)} Kg7 {0.83/20 21} 36. Ra5 {1.77/20 8} Nb7 {0.
92/20 16} 37. Ra3 {1.79/19 7} Bf5 {0.91/19 18 (Nc5)} 38. Rbb3 {1.84/20 61 (Re1)
} Bc2 {1.21/18 13} 39. Rb4 {2.04/20 5} e5 {1.42/22 14} 40. Bg4 {2.07/22 23} Bf5
{1.42/20 0} 41. Qf3 {2.03/22 8} e4 {1.41/23 15} 42. Bxf5 {2.06/22 5} Qxf5 {1.
37/22 13} 43. Qxf5 {2.00/22 9} gxf5 {1.21/21 0} 44. Rg3+ {1.96/23 68} Kf8 {1.
14/22 21} 45. Re3 {1.96/23 4 (Kf1)} h5 {1.10/22 13} 46. Rbb3 {1.95/23 43 (g3)}
f4 {0.97/21 30} 47. Re2 {1.77/22 24} Kg7 {0.91/22 41} 48. Ra3 {1.78/22 46} h4 {
0.85/23 14} 49. Re1 {1.64/23 24 (Kf1)} Kg6 {0.80/23 20} 50. Kf1 {1.64/23 9} Kf5
{0.80/24 16} 51. Rd1 {1.64/22 3 (Re2)} Be5 {0.80/23 17 (Rac8)} 52. Rb3 {1.64/
23 37} Kg6 {0.79/23 32 (Bf6)} 53. Rd2 {1.64/22 12} f5 {0.77/23 13 (Bf6)} 54.
Ra2 {1.42/23 18} Bf6 {0.77/24 14 (Kf6)} 55. Rba3 {1.60/21 10} Nc5 {0.77/25 27}
56. Ra5 {1.60/22 20} Nb7 {0.77/23 1} 57. R5a4 {1.60/22 3} Nc5 {0.77/24 32} 58.
Rb4 {1.60/21 2} Nb7 {0.77/22 0} 59. Ke2 {1.60/23 24 (Rb3)} Rg8 {0.76/23 12} 60.
Rba4 {1.53/22 9} Nc5 {0.76/23 13} 61. Ra5 {1.54/21 3} Nb7 {0.76/21 0} 62. Ra6 {
1.40/22 17} Nc5 {0.76/23 12} 63. R6a3 {1.40/21 3} Kg5 {0.69/22 11 (Rae8)} 64.
Kf1 {1.40/21 20} Rae8 {0.68/23 14 (Kg6)} 65. Ra5 {1.37/21 19 (Rd2)} Nb7 {0.69/
23 11} 66. Rb5 {1.38/22 20} Be5 {0.68/23 13 (e3)} 67. Rb3 {1.29/21 17} Nc5 {0.
68/23 11 (Kf6)} 68. Rb4 {1.29/22 13 (Rb1)} Nb7 {0.68/24 13} 69. Rba4 {1.24/22 5
} Kf6 {0.68/24 16} 70. R4a3 {1.24/22 5} Nc5 {0.68/22 0} 71. Rc2 {1.01/22 22}
Nb7 {0.60/23 45 (Ref8)} 72. Rd2 {1.24/22 13} Ref8 {0.48/23 20} 73. Re2 {0.94/
21 18 (Rda2)} Re8 {0.41/22 10} 74. f3 {0.94/23 12 (Rc2)} e3 {0.40/25 15} 75.
Rb3 {0.94/23 2} Nc5 {0.40/26 10 (Rc8)} 76. Rb4 {0.94/24 12} Nb7 {0.40/26 10}
77. Rb1 {0.94/24 4} Rc8 {0.40/26 28 (Ra8)} 78. Ra2 {0.94/22 3 (Rb3)} Bc3 {0.40/
25 10 (Rcf8)} 79. Rc1 {0.87/23 12 (Rd1)} Bd2 {0.26/24 10} 80. Rcc2 {0.87/23 4}
Rce8 {0.27/24 10} 81. Nd4 {0.63/22 7} Re5 {0.27/23 11 (Nc5)} 82. Ne2 {0.85/23
15 (Ra1)} Kg5 {0.12/23 17} 83. Rab2 {0.57/23 21} Rge8 {0.12/25 12} 84. Rb1 {0.
37/22 18 (Nd4)} R5e7 {0.08/22 10} 85. Rb5 {0.37/23 17 (Ra1)} Kf6 {0.07/24 11
(Nc5)} 86. Rb3 {0.37/23 14} Kg5 {0.09/24 14 (Nc5)} 87. Rd3 {0.37/24 14 (Rb1)}
Nc5 {0.09/23 10} 88. Ra3 {0.32/24 13 (Rd4)} Rb7 {0.02/24 16} 89. Rb2 {0.16/22
13} Kf6 {-0.01/24 12 (Rc8)} 90. Raa2 {0.00/23 8} Ke5 {0.00/25 11} 91. Rb1 {0.
00/23 3 (Rb5)} Rh8 {0.00/24 13 (Rg8)} 92. Ra3 {0.00/25 13 (Rbb2)} Rg8 {-0.01/
25 17} 93. Kg1 {0.00/22 2 (Ra2)} Ne4 {-0.31/23 10} 94. Kf1 {0.00/21 14} Ng3+ {
-0.37/23 15} 95. Nxg3 {-0.02/22 4} Rxg3 {-0.32/21 0} 96. Rd3 {-0.18/23 16} Rg8
{-0.58/24 17} 97. Ra1 {-0.40/23 14} Bb4 {-0.74/23 9} 98. Rb1 {-0.67/22 13} Ba5
{-0.68/24 10} 99. Rb2 {-0.71/23 13} Rc8 {-0.78/25 14} 100. Ra3 {-0.71/23 2} Bd2
{-0.83/24 14 (Rc5)} 101. Rc2 {-0.81/23 10 (Ra4)} Kd4 {-0.91/26 12} 102. Ke2 {
-0.87/23 4} Rxc4 {-0.91/23 0} 103. Rd3+ {-1.00/24 15} Kc5 {-1.32/22 4} 104. Ra2
{-1.08/24 14 (Rxc4+)} Bc3 {-1.51/24 10 (Rc1)} 105. Rd1 {-1.26/24 8} Bb4 {-1.51/
22 0 (Rd4)} 106. Rb2 {-1.34/24 10} Bd2 {-1.58/24 11 (Ba5)} 107. Rdxd2 {-1.49/
22 8} exd2 {-1.58/22 0} 108. Rxd2 {-1.69/24 14} Rd4 {-1.61/26 10} 109. Rc2+ {
-1.85/24 15} Kxd5 {-1.77/27 20} 110. Rb2 {-1.93/24 12} Kc5 {-1.92/27 20 (Kc6)}
111. Ra2 {-2.01/24 12 (Rc2+)} d5 {-2.18/26 17 (Kb5)} 112. Kf1 {-2.29/23 11
(Ke1)} Kb5 {-2.39/25 14 (Kc6)} 113. Rb2+ {-2.29/23 11 (Kf2)} Rb4 {-2.77/24 13
(Kc6)} 114. Rd2 {-2.57/22 11 (Rc2)} Kc6 {-3.32/22 12} 115. Kf2 {-2.67/22 10} d4
{-3.97/22 12} 116. Rd1 {-3.07/22 10 (Kf1)} Rb2+ {-5.66/20 9 (Rc4)} 117. Kf1 {
-4.16/20 10 (Kg1)} Kd5 {-6.79/19 4} 118. Kg1 {-4.62/20 10 (Ke1)} Rc2 {-7.51/18
0 (Rb3)} 119. Kf1 {-5.96/18 10 (Kh2)} Kc4 {-8.74/17 0} 120. Ra1 {-14.74/18 10
(Ke1)} d3 {-19.56/16 2} 121. Ke1 {-19.79/17 10 (Rd1)} d2+ {-#7/15 0} 122. Kd1 {
-#13/17 9} Kd3 {-#6/14 0 (Rb2)} 123. Bb8 {-#5/20 10 (Ra3+)} Rc1+ {-#5/13 0
(Re7)} 124. Rxc1 {-#4/21 10} Re7 {-#4/12 0} 125. Be5 {-#3/20 10 (Rc3+)} Rxe5 {
-#3/11 0} 126. Rc3+ {-#2/19 10} Kxc3 {-#2/10 0} 127. g4 {-#1/19 10} Re1# {-#1/
11 0} 0-1

Houdini did not see it coming...

[Event "Houdini vs IvanHoe, Blitz 15m+10s"]
[Site "W0111D0001"]
[Date "2011.01.15"]
[Round "11"]
[White "Houdini 1.5 x64"]
[Black "IvanHoe 0B.01.0E x64"]
[Result "0-1"]
[ECO "B13"]
[Annotator "0.19;0.19"]
[PlyCount "192"]
[TimeControl "900+10"]

{AMD Phenom(tm) II X4 940 Processor 3010 MHz W=23.0 plies; 7,786kN/s B=22.7
plies; 6,464kN/s; 438,720,296 TBAs} 1. d4 c6 2. e4 d5 3. exd5 cxd5 4. Bd3 Nc6 {
Both last book move} 5. Nf3 {0.19/21 24} Bg4 {0.19/23 67} 6. Be3 {0.19/22 23
(0-0)} e6 {0.11/22 30} 7. O-O {0.11/21 31} Nf6 {0.08/22 25} 8. Nbd2 {0.11/22 37
} Bd6 {0.06/22 19} 9. h3 {0.10/22 31} Bh5 {0.05/22 16} 10. c3 {0.11/22 38} O-O
{0.06/21 22} 11. Re1 {0.09/22 32 (Qc2)} Rc8 {0.08/23 95} 12. a3 {0.09/22 36} a6
{0.05/22 35 (Qc7)} 13. Qc2 {0.09/22 23} Re8 {0.05/21 6 (Bg6)} 14. Rac1 {0.06/
21 27 (Bg5)} Qe7 {0.06/20 14 (Qc7)} 15. Qb1 {0.13/20 121 (Bg5)} Kh8 {0.06/20
41 (Qc7)} 16. b4 {0.16/19 18} Rc7 {0.11/20 50} 17. Nh4 {0.14/20 23 (Bg5)} Rcc8
{0.05/21 41 (Rec8)} 18. Ndf3 {0.17/20 75} h6 {0.00/21 57 (Qd8)} 19. Bd2 {0.20/
20 21 (Qc2)} Bb8 {-0.25/20 29 (Bxf3)} 20. g4 {-0.26/20 108 (Rc2)} Nxg4 {-0.78/
19 16} 21. hxg4 {0.24/18 0} Bxg4 {-0.66/19 15} 22. Kg2 {0.07/18 33} g5 {-0.67/
20 12} 23. Rh1 {0.08/20 25 (Bf5)} gxh4 {-0.25/18 27} 24. Nxh4 {0.09/18 0} Qf6 {
-0.29/19 6 (Rg8)} 25. Bxh6 {-0.12/20 15} Rg8 {-0.44/20 12} 26. Nf5 {-0.12/19 0}
Qxf5 {-0.51/20 13} 27. Bxf5 {-0.14/22 18} Bxf5+ {-0.60/21 12} 28. Bg5+ {-0.12/
21 0} Kg7 {-0.71/22 23} 29. Qb2 {-0.12/23 19} Kf8 {-0.78/22 40} 30. Qd2 {-0.21/
23 73} f6 {-0.80/22 13} 31. Rh5 {-0.14/22 17} fxg5 {-0.82/21 5} 32. Rxg5 {-0.
35/22 28} Kf7 {-0.89/22 8} 33. Kf1 {-0.43/23 15} Ne7 {-0.90/22 8 (Rxg5)} 34.
Rxg8 {-0.93/21 46} Rxg8 {-0.87/22 6} 35. Ke2 {-0.93/22 30 (Qh6)} Ng6 {-1.60/22
27 (Rh8)} 36. Rh1 {-1.00/24 18} Nf4+ {-1.64/21 6} 37. Ke3 {-1.01/24 14} Nd3 {
-1.66/22 9} 38. Rh4 {-1.01/25 16} Rg1 {-1.66/22 12} 39. Ke2 {-1.01/26 46} Rg2 {
-1.66/22 10} 40. Kf1 {-1.01/26 15 (Ke3)} Rxf2+ {-1.74/23 8} 41. Qxf2 {-1.01/25
0} Nxf2 {-1.78/25 17} 42. Kxf2 {-0.87/24 0} Kf6 {-1.79/25 15 (Bd6)} 43. Ke2 {
-0.87/26 15} Bg3 {-1.81/24 8 (Kg7)} 44. Rh8 {-0.95/26 15} Bg4+ {-1.81/24 8
(Bf4)} 45. Kd2 {-0.97/26 16} Bf4+ {-1.81/25 9} 46. Kc2 {-0.99/27 15} e5 {-1.81/
25 12} 47. dxe5+ {-0.99/25 2} Bxe5 {-1.81/25 25} 48. Rd8 {-0.98/26 13 (a4)}
Bf5+ {-1.88/25 23 (Be6)} 49. Kd2 {-0.99/26 16} Be4 {-1.88/25 5} 50. Re8 {-0.99/
27 14} Kf5 {-1.88/24 6 (Bf4+)} 51. a4 {-0.99/25 13 (Rd8)} Bf6 {-1.90/25 26 (d4)
} 52. Rc8 {-0.99/26 20 (a5)} Ke6 {-1.90/24 7 (d4)} 53. Re8+ {-0.99/26 13} Be7 {
-1.90/25 7 (Kd7)} 54. Ke3 {-0.99/27 13} Kd7 {-1.90/24 6} 55. Rb8 {-0.99/27 17}
Bg5+ {-1.90/24 7} 56. Ke2 {-1.00/28 15} Kd6 {-1.91/25 10 (Bf6)} 57. Re8 {-1.00/
26 12 (Rg8)} Bc2 {-2.07/27 40 (Be7)} 58. a5 {-1.07/26 19} Bf6 {-2.07/27 7 (Be4)
} 59. Kd2 {-1.21/27 12} Be4 {-2.05/26 4} 60. Rf8 {-1.44/27 15} Bg5+ {-2.20/25 5
} 61. Ke2 {-1.52/27 19} Be7 {-2.22/25 8} 62. Rf1 {-1.62/26 26 (Rg8)} Ke5 {-2.
45/28 34} 63. Rd1 {-1.69/26 14} Bf5 {-2.46/27 13} 64. Re1 {-1.93/25 44} d4 {-2.
46/26 7} 65. Kf3+ {-2.10/24 14} Kf6 {-2.79/27 40} 66. cxd4 {-2.17/25 18} Bxb4 {
-2.95/27 83} 67. Re5 {-2.18/24 12} Bd3 {-3.04/27 67} 68. Ke3 {-2.15/24 10 (Rh5)
} Bb5 {-3.05/25 10} 69. Rh5 {-2.19/26 16} Bxa5 {-3.16/24 25} 70. Rh6+ {-2.23/
25 10} Kg7 {-3.16/25 4 (Kf5)} 71. Rh5 {-2.57/23 26 (Rd6)} Bb4 {-3.65/23 19
(Kg6)} 72. Kf4 {-3.03/21 21 (Rg5+)} Bc4 {-4.89/19 16 (Bd6+)} 73. Rg5+ {-3.83/
21 17 (d5)} Kf7 {-5.62/20 18 (Kf6)} 74. Rh5 {-4.46/20 15} b5 {-5.88/19 7} 75.
Rh7+ {-5.22/19 11} Ke6 {-6.06/22 9} 76. Ke4 {-5.49/20 13} Bd5+ {-6.36/21 7 (a5)
} 77. Kd3 {-5.67/22 12} a5 {-6.77/21 6} 78. Rh6+ {-6.42/20 11} Kd7 {-7.38/22 9}
79. Kc2 {-6.99/20 11} a4 {-9.61/21 21} 80. Ra6 {-7.63/20 9 (Rh5)} a3 {-11.71/
19 18} 81. Kd3 {-7.99/25 11 (Ra7+)} a2 {-199.72/21 13 (Bc4+)} 82. Ra7+ {-17.57/
19 11 (Kc2)} Kc6 {-202.59/21 3} 83. Ra8 {-#23/19 10 (Kc2)} Kb7 {-206.43/25 19
(Kb6)} 84. Rxa2 {-#13/25 9} Bxa2 {-207.71/25 5} 85. Ke3 {-#12/27 11 (Ke4)} Bd5
{-#13/25 24 (Kc6)} 86. Kd3 {-#10/29 10} Kc7 {-#13/24 3 (Kc6)} 87. Kc2 {-#10/30
10} Ba3 {-#12/24 7} 88. Kc3 {-#9/28 0} b4+ {-#10/23 20 (Kc6)} 89. Kd2 {-#8/26
1 (Kc2)} b3 {-#10/24 43 (Kc6)} 90. Kd3 {-#7/24 0 (Kd1)} Bb4 {-#7/23 27 (b2)}
91. Ke3 {-#6/22 0} b2 {-#7/22 8} 92. Kf4 {-#5/20 0} Bd6+ {-#6/21 7 (b1Q)} 93.
Kg5 {-#4/18 0} b1=Q {-#5/21 8} 94. Kh5 {-#3/16 0 (Kf6)} Qf5+ {-#3/20 29} 95.
Kh4 {-#2/14 0} Qg6 {-#2/20 29 (Qf4+)} 96. Kh3 {-#1/1 0} Qg3# {-#1/125 1} 0-1

I thought this was a very interesting game...

Quite surprised too that White managed to lose (though a draw would be unsurprising, especially as things like the passed b-pawn are difficult to evaluate). First reaction is the Ba7 became useless, and Black was able to co-ordinate pieces, and (finally) push the e-pawn. White was left to shuffle about (as a general rules, bishops do not support the advance of a passed pawn as well as other pieces).

Houdini did not see it coming...

Three pieces for a queen is never easy. I guess White can't activate the majors to harass the Black King, and his own King becomes endangered. Zero targets for the Queen also (Nunn/Griffiths mention this as a crucial element in "Secrets of Grandmaster Chess" with some of Nunn's similar sacs, though at times I think they over-rate the importance). Quite a diff in eval for an extended time there.

BB+ wrote:

I thought this was a very interesting game...

Quite surprised too that White managed to lose (though a draw would be unsurprising, especially as things like the passed b-pawn are difficult to evaluate). First reaction is the Ba7 became useless, and Black was able to co-ordinate pieces, and (finally) push the e-pawn. White was left to shuffle about (as a general rules, bishops do not support the advance of a passed pawn as well as other pieces).

Houdini did not see it coming...

Three pieces for a queen is never easy. I guess White can't activate the majors to harass the Black King, and his own King becomes endangered. Zero targets for the Queen also (Nunn/Griffiths mention this as a crucial element in "Secrets of Grandmaster Chess" with some of Nunn's similar sacs, though at times I think they over-rate the importance). Quite a diff in eval for an extended time there.

The first game where IvanHoe lost was definitely a surprise...draw seems more "normal" given the position. Perhaps mobility penalty issue with it locking its own bishop. The second game shows Houdini's aggressiveness as it likes to push pawns...you see this when it plays ECO B21 Morra Gambit.

r1bqkbnr/pp2pp1p/2np2p1/2p5/4PP2/2NP4/PPP3PP/R1BQKBNR w KQkq - 0 5

A few Morra Gambit games:

[Event "Houdini vs IvanHoe, Blitz 10m"]
[Site "W0111D0001"]
[Date "2011.01.11"]
[Round "1"]
[White "Houdini 1.5 x64"]
[Black "IvanHoe 0B.01.09 x64"]
[Result "1-0"]
[ECO "B21"]
[Annotator "-0.06;-0.43"]
[PlyCount "95"]
[TimeControl "600"]

{AMD Phenom(tm) II X4 940 Processor 3010 MHz W=16.0 plies; 5,932kN/s B=17.5
plies; 5,887kN/s} 1. e4 c5 2. d3 Nc6 3. f4 d6 4. Nc3 g6 {Both last book move}
5. g4 {-0.06/20 12} Bg7 {-0.43/20 16} 6. h3 {-0.12/19 52} Nf6 {-0.42/19 7 (e6)}
7. Bg2 {-0.05/19 20} O-O {-0.39/19 36} 8. Nge2 {-0.04/18 20} Nd7 {-0.34/18 42
(Rb8)} 9. O-O {-0.04/17 19 (h4)} a6 {-0.33/19 27 (Rb8)} 10. a3 {-0.02/19 13}
Rb8 {-0.32/19 20} 11. f5 {0.00/19 7} b5 {-0.18/18 21} 12. Bf4 {0.00/19 8 (Bg5)}
a5 {-0.28/19 21 (Nd4)} 13. Qd2 {-0.04/17 8 (Rb1)} b4 {-0.33/19 14} 14. axb4 {
-0.07/18 26} axb4 {-0.29/18 2} 15. Nd1 {0.00/19 26} Bb7 {-0.22/20 19} 16. Bh6 {
-0.03/20 29} Ra8 {-0.20/20 21} 17. Bxg7 {0.00/20 33 (Rxa8)} Rxa1 {-0.17/18 10
(Kxg7)} 18. Qh6 {0.03/19 8} Nce5 {-0.11/17 22} 19. Nf4 {0.04/19 19} b3 {-0.02/
17 10 (c4)} 20. cxb3 {0.78/18 5} Bc8 {0.69/19 62 (Qe8)} 21. g5 {2.09/15 5 (Ne3)
} Bb7 {1.04/16 16 (c4)} 22. f6 {8.48/14 1 (fxg6)} exf6 {5.83/15 9 (Nxf6)} 23.
Nh5 {8.48/13 0} gxh5 {6.86/16 12} 24. Bxf6 {8.39/12 0} Nxf6 {7.28/18 26 (Qxf6)}
25. gxf6 {7.81/11 0} Qxf6 {7.28/17 0} 26. Qxf6 {7.72/10 0} Ng6 {7.43/18 33
(Ra6)} 27. Ne3 {9.69/18 10 (Qxd6)} Rxf1+ {7.93/20 28} 28. Bxf1 {9.35/17 0} Bc8
{7.93/18 0} 29. Qxd6 {8.93/16 0} Be6 {7.93/19 16} 30. Qxc5 {8.93/15 0} Rc8 {8.
21/19 22 (Bxb3)} 31. Qxh5 {9.37/14 2} Rb8 {8.42/19 18 (Re8)} 32. Nf5 {10.60/17
5 (d4)} Rxb3 {8.76/16 3} 33. Qg5 {10.61/15 0 (d4)} h5 {9.63/17 11 (Rb7)} 34.
Qh6 {12.70/15 1 (Nd4)} Bxf5 {13.25/18 10} 35. exf5 {12.50/14 0} Nf8 {14.38/18
8 (Rb6)} 36. Qg5+ {13.09/13 0} Kh7 {13.25/16 0} 37. Qxh5+ {13.09/12 0} Kg8 {14.
98/17 7 (Kg7)} 38. Qg4+ {12.18/11 0} Kh7 {13.25/15 0} 39. Qc4 {11.53/10 0} Rb7
{16.74/18 2} 40. Qc8 {12.18/9 0} Rb6 {17.87/18 5 (Rb5)} 41. Qxf8 {13.66/8 0}
Rf6 {16.74/16 0} 42. d4 {#7/23 2 (Qc5)} Rxf5 {#11/11 0} 43. Bd3 {#6/21 0} Kg6 {
#5/15 1} 44. Qh8 {#5/19 0} Kg5 {#4/15 1} 45. Qg7+ {#4/17 0} Kf4 {#3/16 1} 46.
Kf2 {#3/15 0} Rg5 {#2/16 3} 47. Qf6+ {#2/13 0} Rf5 {#1/17 3} 48. Qxf5# {#1/11 0
} 1-0

[Event "Houdini vs IvanHoe, Blitz 10m"]
[Site "W0111D0001"]
[Date "2011.01.11"]
[Round "2"]
[White "IvanHoe 0B.01.09 x64"]
[Black "Houdini 1.5 x64"]
[Result "0-1"]
[ECO "B21"]
[Annotator "-0.12;-0.27"]
[PlyCount "158"]
[TimeControl "600"]

{AMD Phenom(tm) II X4 940 Processor 3010 MHz W=17.4 plies; 5,556kN/s B=18.2
plies; 6,109kN/s} 1. e4 c5 2. d3 Nc6 3. f4 d6 4. Nc3 g6 {Both last book move}
5. h3 {-0.12/21 28} Bg7 {-0.27/19 15 (Nf6)} 6. Nf3 {-0.14/21 31} Nf6 {-0.28/19
9} 7. g4 {-0.18/20 63} Nd7 {-0.28/18 14 (0-0)} 8. Qd2 {-0.09/18 15 (Bg2)} O-O {
-0.28/18 19} 9. Bg2 {-0.08/18 3} Nd4 {-0.20/18 33 (Rb8)} 10. a3 {-0.07/18 43
(Nxd4)} a6 {-0.22/17 16} 11. a4 {-0.01/17 3 (Qf2)} b6 {-0.27/18 13 (Nb8)} 12.
g5 {-0.10/19 19 (0-0)} Bb7 {-0.30/19 43 (h5)} 13. h4 {-0.09/19 13 (Ne2)} e5 {
-0.38/19 22} 14. Nxd4 {-0.21/19 24 (Nd5)} cxd4 {-0.40/20 12} 15. Nd5 {-0.21/20
4} Bxd5 {-0.45/20 11} 16. exd5 {-0.21/18 0} exf4 {-0.42/21 14} 17. Qf2 {-0.22/
19 9 (0-0)} f6 {-0.52/18 8 (Re8+)} 18. Bh3 {-0.19/19 8} f5 {-0.52/16 0} 19.
Bxf4 {-0.26/19 3} Re8+ {-0.45/18 8} 20. Kd1 {-0.20/19 2 (Kf1)} Qc7 {-0.49/21 7}
21. Re1 {-0.12/18 2 (h5)} Be5 {-0.44/18 8 (Rxe1+)} 22. Bc1 {-0.41/20 9} Rac8 {
-0.71/19 10 (a5)} 23. b3 {-0.48/20 22 (h5)} a5 {-0.64/20 11 (Re7)} 24. Ra2 {-0.
40/20 8} Nc5 {-0.74/21 6} 25. Ba3 {-0.41/19 3 (Bd2)} Re7 {-0.92/19 5 (Na6)} 26.
Bf1 {-0.58/20 14} Qb7 {-0.76/20 15 (Rce8)} 27. Bg2 {-0.47/20 6 (h5)} Rce8 {-0.
98/21 13} 28. Rh1 {-0.87/20 38 (Rf1)} Qc7 {-1.28/20 9 (Bg7)} 29. Bf3 {-0.87/19
11 (Rf1)} Bf4 {-2.71/18 5 (Bg7)} 30. Qxd4 {-1.81/19 39} Bg3 {-2.33/15 0} 31. c3
{-2.43/19 32 (c4)} Re3 {-3.13/19 5} 32. Re2 {-2.43/18 0} Rxe2 {-3.38/20 12
(Nxb3)} 33. Bxe2 {-2.63/19 7} Nxb3 {-3.12/19 0} 34. Qc4 {-2.63/18 0} Qe7 {-3.
18/19 1} 35. Qxb3 {-2.73/20 15} Qxe2+ {-3.16/18 0} 36. Kc1 {-2.73/19 0} Bf4+ {
-3.12/19 7} 37. Kb1 {-2.83/21 5} Qxd3+ {-3.12/18 0} 38. Ka2 {-2.83/21 2 (Ka1)}
Re2+ {-3.04/20 4} 39. Bb2 {-2.99/22 23} Qe4 {-3.50/21 7} 40. Qb5 {-3.11/21 19}
Bd2 {-4.01/20 9} 41. Ka3 {-3.27/20 15} Be3 {-4.01/18 0} 42. Ka2 {-3.30/19 4
(Rf1)} Bc5 {-4.07/21 14} 43. Rf1 {-3.30/19 0} f4 {-4.07/19 0 (Qxd5+)} 44. Rxf4
{-3.25/16 5} Rxb2+ {-4.08/18 0} 45. Kxb2 {-3.25/15 0} Qxf4 {-3.91/17 0} 46.
Qe8+ {-3.51/18 1} Kg7 {-4.29/23 6 (Qf8)} 47. Qd7+ {-3.59/19 3} Qf7 {-4.29/21 0}
48. Qd8 {-3.59/19 0} Qf2+ {-4.96/24 14 (b5)} 49. Kb1 {-3.56/18 1} Qf8 {-4.97/
22 4 (Qe1+)} 50. Qd7+ {-3.59/19 1} Qf7 {-4.97/20 0} 51. Qd8 {-3.59/19 1} Qf1+ {
-5.04/22 4 (b5)} 52. Kb2 {-3.56/18 1} Qe2+ {-5.04/20 0 (Qg2+)} 53. Kb1 {-3.56/
18 1} Qd1+ {-5.14/20 3} 54. Kb2 {-3.56/16 0} Qxa4 {-5.14/19 0 (Qd2+)} 55. Qf6+
{-4.17/17 5} Kg8 {-5.14/1 0} 56. Qd8+ {-4.17/17 1 (Qe6+)} Kf7 {-5.00/8 0} 57.
Qf6+ {-4.17/17 1} Ke8 {-4.99/8 0} 58. Qh8+ {-4.18/17 2} Ke7 {-5.36/19 5 (Kd7)}
59. Qxh7+ {-4.58/18 6} Kd8 {-5.37/17 0} 60. Qh8+ {-4.66/17 5} Qe8 {-5.90/17 1}
61. Qf6+ {-4.58/16 0} Kc7 {-5.83/16 0} 62. h5 {-5.04/15 4 (Qf1)} a4 {-8.44/17
4 (Qe2+)} 63. Qf1 {-6.23/14 3 (Qf3)} gxh5 {-8.54/15 0} 64. Qd3 {-6.82/14 3} a3+
{-8.80/15 0} 65. Ka2 {-6.36/12 0 (Kb3)} h4 {-10.38/14 1} 66. Qh7+ {-9.24/13 2}
Kd8 {-10.38/13 0 (Kb8)} 67. Qd3 {-7.25/13 0} h3 {-10.38/12 0 (Qe5)} 68. Qd2 {
-14.15/13 2} Qh5 {-16.20/11 0 (Kc7)} 69. Qd3 {-24.97/13 1 (Qe1)} h2 {-18.73/10
0} 70. Qa6 {-18.97/11 0 (Qf1)} h1=Q {-18.73/9 0} 71. Qa8+ {-#10/12 0} Ke7 {-#9/
27 0} 72. Qb7+ {-#9/13 0} Kf8 {-#8/25 0} 73. Qc8+ {-#9/13 1} Kg7 {-#7/23 0
(Qe8)} 74. Qd7+ {-#7/12 0} Qf7 {-#6/21 0} 75. Qxf7+ {-#5/13 1} Kxf7 {-#5/19 0}
76. g6+ {-#5/14 1} Kxg6 {-#4/17 0} 77. Kb3 {-#4/14 1} Qb1+ {-#3/15 0} 78. Ka4 {
-#4/13 0} a2 {-#2/13 0 (Kg7)} 79. c4 {-#4/12 0} a1=Q# {-#1/1 0} 0-1

[Event "Houdini vs IvanHoe, Blitz 15m+10s"]
[Site "W0111D0001"]
[Date "2011.01.15"]
[Round "17"]
[White "Houdini 1.5 x64"]
[Black "IvanHoe 0B.01.0E x64"]
[Result "1-0"]
[ECO "B21"]
[Annotator "-0.03;-0.18"]
[PlyCount "215"]
[TimeControl "900+10"]

{AMD Phenom(tm) II X4 940 Processor 3010 MHz W=22.0 plies; 7,248kN/s B=22.2
plies; 6,225kN/s; 77,620,580 TBAs} 1. e4 c5 2. d3 Nc6 3. f4 d6 4. Nc3 g6 {Both
last book move} 5. Nd5 {-0.03/21 23} Nf6 {-0.18/22 81 (Bg7)} 6. c3 {-0.03/22 27
} Bg7 {-0.20/22 14} 7. Be2 {-0.03/22 47} Nxd5 {-0.19/23 68 (0-0)} 8. exd5 {-0.
04/21 6} Nb8 {-0.19/24 27} 9. Bf3 {-0.05/22 28} O-O {-0.16/23 46} 10. Ne2 {-0.
01/21 28} Nd7 {-0.17/22 14} 11. O-O {-0.04/21 136} Nf6 {-0.17/21 39 (Qc7)} 12.
b3 {-0.04/20 64 (c4)} b5 {-0.21/21 51 (Bg4)} 13. Bb2 {-0.07/20 19} Qb6 {-0.08/
21 86} 14. c4 {-0.04/21 21} Re8 {-0.08/21 48 (bxc4)} 15. Rb1 {0.04/20 21 (Qc2)}
Rb8 {0.00/22 127} 16. h3 {0.05/20 19 (Qc2)} Bd7 {-0.04/20 41 (e6)} 17. Qc2 {0.
06/20 20 (Qd2)} Qc7 {0.00/20 51 (h5)} 18. Rfe1 {0.09/18 27} Rb7 {0.03/21 85
(h5)} 19. Nc3 {0.15/19 68 (Ng3)} bxc4 {0.06/21 28} 20. dxc4 {0.21/21 93} Bf5 {
0.06/22 19} 21. Be4 {0.23/21 17} Bd7 {0.09/22 63} 22. g4 {0.20/20 20 (Qd2)} a5
{0.05/18 16 (Rbb8)} 23. Bd3 {0.37/18 24 (Bf3)} Rbb8 {0.23/18 39 (Qb6)} 24. f5 {
0.42/18 29} Qa7 {0.30/18 23} 25. Re3 {0.62/19 27} Qb7 {0.47/18 18} 26. fxg6 {
0.62/18 21 (Ne4)} fxg6 {0.68/19 39} 27. Rf1 {1.33/19 30 (Qe2)} a4 {1.56/18 33
(e5)} 28. Bxg6 {2.19/17 8} axb3 {1.70/18 14} 29. Bxh7+ {2.17/16 0} Kh8 {1.73/
19 9} 30. axb3 {1.76/15 0} Qxb3 {1.76/20 13} 31. Nd1 {2.10/22 16} Qxc2 {1.97/
20 9} 32. Bxc2 {1.95/20 0} Ng8 {2.07/22 28 (Nh7)} 33. Rf7 {2.34/24 19} Rxb2 {
2.32/20 2} 34. Nxb2 {2.32/23 0} Ra8 {2.45/22 20} 35. Rb3 {2.25/25 19} Be8 {2.
45/22 5} 36. Rf1 {2.28/24 15} Bd4+ {2.45/21 16 (Ra2)} 37. Kg2 {2.33/26 23 (Kh1)
} Ra2 {2.34/23 11} 38. Rb8 {2.33/26 17} Kg7 {2.34/22 2 (Rxb2)} 39. Rb1 {2.77/
21 6} Bf7 {2.50/23 23 (Bd7)} 40. g5 {2.86/24 16} Bh5 {2.63/23 15} 41. h4 {2.86/
25 14} Be5 {2.63/23 3} 42. Rb3 {2.86/27 24} Bg4 {2.63/23 3} 43. Be4 {2.74/25
20 (Bd3)} Be2 {2.63/23 9 (Bh5)} 44. Kh3 {2.74/26 17} Bh5 {2.63/24 6} 45. Rb7 {
2.74/27 20 (Rb8)} Kh8 {2.63/24 13} 46. Rb6 {2.74/27 14} Kg7 {2.63/24 7} 47. Rb3
{2.74/27 14} Kh8 {2.63/24 5} 48. Bc2 {2.74/27 14 (Bd3)} Kg7 {2.63/23 2} 49. Bf5
{2.74/28 33 (Bd3)} Kh8 {2.63/22 3} 50. Kg2 {2.74/27 26 (Bd3)} Kg7 {2.63/24 28}
51. Bd3 {2.74/26 14 (Kh1)} Bg4 {2.50/18 2} 52. Kf2 {2.74/26 20} Bd4+ {2.63/21
10 (Ra8)} 53. Kg3 {2.74/27 23} Bh5 {2.63/23 4} 54. Bf5 {2.74/27 14} Be5+ {2.63/
23 4} 55. Kg2 {2.74/26 18} Be2 {2.63/23 8} 56. Kg1 {2.74/25 14 (Kh3)} Bd4+ {2.
63/23 15 (Bh5)} 57. Kh1 {2.74/24 1} Bh5 {2.62/23 12} 58. Be4 {2.74/26 18 (Kh2)}
Be5 {2.46/22 16} 59. Bd3 {2.74/26 22 (Rb8)} Bf3+ {2.33/22 17} 60. Kg1 {2.74/24
0} Bg4 {2.46/23 10 (Bd4+)} 61. Kg2 {2.74/27 20} Bd4 {2.46/23 3} 62. Be4 {2.74/
25 1} Bh5 {2.55/22 5} 63. Kg3 {2.60/26 53 (Rb8)} Be5+ {2.35/21 8} 64. Kf2 {2.
73/22 6} Bd4+ {2.62/23 20 (Bg4)} 65. Ke1 {2.74/25 17 (Kg2)} Be5 {2.62/23 25
(Bg4)} 66. Kf1 {2.70/25 38} Bg4 {2.54/24 22} 67. Rb8 {2.85/24 21 (Kf2)} Bd4 {
2.62/22 12 (Bc3)} 68. Kg2 {2.90/24 20} Bh5 {2.90/22 19} 69. Bf5 {2.92/23 11}
Be5 {2.92/22 17 (Kh8)} 70. Kf1 {3.03/22 10} Bd4 {2.93/21 2} 71. Be6 {3.03/20 0}
Nf6 {3.09/23 17 (Bg6)} 72. gxf6+ {2.99/19 1} Kxf6 {3.16/23 15} 73. Rb3 {3.19/
24 45} Bg6 {3.25/23 14} 74. Rf3+ {3.04/22 0} Kg7 {3.25/24 13} 75. Nd3 {3.49/25
37} Kh6 {3.25/23 9} 76. Rg3 {3.49/23 0 (Bf5)} Rc2 {2.99/20 8} 77. Rd1 {3.50/22
15 (h5)} Rc3 {3.23/19 12 (Be4)} 78. h5 {3.89/22 10} Bh7 {3.48/20 3 (Be4)} 79.
Bf7 {3.98/23 12} Be5 {3.48/21 4} 80. Rf3 {3.98/21 0} Be4 {3.71/21 23} 81. Re3 {
4.15/23 11} Bxd3+ {3.94/21 10} 82. Rexd3 {4.12/21 0 (Rdxd3)} Rxc4 {3.86/20 4}
83. Bg6 {4.28/23 16 (Ke2)} Rb4 {3.95/22 14 (Ra4)} 84. Rf3 {4.50/23 33} Bf6 {4.
06/22 6} 85. Rg3 {4.61/21 0} Bg5 {4.08/22 14 (Be5)} 86. Rb1 {4.73/24 10 (Ke2)}
Ra4 {4.71/20 15 (Rxb1+)} 87. Rg2 {4.79/23 12 (Ke2)} c4 {4.77/19 12 (Bf6)} 88.
Rb8 {7.31/19 9 (Rg4)} Bf6 {6.07/19 11} 89. Rf8 {7.31/18 0 (Rg8)} Be5 {6.98/19
11} 90. Rf7 {7.31/17 0} Ra1+ {8.44/19 11} 91. Ke2 {10.15/24 14 (Kf2)} Ra2+ {9.
17/20 11} 92. Kf3 {10.15/22 0} Rxg2 {10.16/20 10} 93. Kxg2 {9.81/22 0} Kg5 {10.
89/20 10 (Bf6)} 94. Rxe7 {10.53/23 14} Bd4 {11.40/20 10 (Bb2)} 95. Kf3 {13.08/
21 9 (Re6)} Bb2 {15.10/18 10} 96. Rf7 {13.88/20 2 (Re6)} Bc1 {192.98/18 10} 97.
Rf5+ {13.90/19 1} Kh6 {195.10/20 10} 98. Rf6 {13.90/18 0} Kg5 {197.20/20 10
(Bd2)} 99. Rxd6 {13.90/17 0} Bf4 {199.83/19 10 (Bd2)} 100. Re6 {13.90/16 0} Bc7
{201.18/18 10} 101. d6 {13.90/15 0} Bd8 {203.25/19 10} 102. d7 {13.93/14 0} c3
{203.29/19 9 (Kh6)} 103. Rc6 {13.93/13 0 (Re8)} Kh6 {205.19/19 10} 104. Bc2+ {
#9/23 12 (Bd3+)} Kxh5 {208.29/20 7 (Kg7)} 105. Kf4 {#7/22 1} Bc7+ {209.57/21 8
(Bg5+)} 106. Rxc7 {#3/15 0} Kh4 {210.85/125 0} 107. Rxc3 {#2/13 0} Kh5 {229.96/
0 1} 108. Rh3# {#1/0 0} 1-0