Amateur keeps rollin' + subtle bug in Spike (thrilling game)
Posted: 30 Mar 2005, 15:29Spike had a lot of pressure and the better game,
but somehow the game turned around move 45-50.
Both reached a highly interesting endgame with
2N vs. P (both don't use tablebases) and an opposite
approach, because obviously Amateur does not know
that 2N alone 'normally' cannot mate, when Spike
'assumes' 2N never mate.
Amateur often accidently could avoid taking the last pawn
by just one iteration and finally found the mate!
In the end finally Spike made a wrong draw claim according
to its wrong knowledge, when actually mate in 1 was going
to be delivered! (Result will be corrected of course)
[Event "RWBC_Class_B_5th_Edition"]
[Site "ESPRESSO"]
[Date "2005.03.30"]
[Round "14"]
[Number "275"]
[White "Amateur_286"]
[Black "Spike_09"]
[Result "1/2-1/2"]
[TimeControl "40/900"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Bd2 d6 8.
d5 {+0.19/12} Nxd2 9. Qxd2 {+0.15/13} e5 10. O-O {+0.13/14} O-O {+0.01/14}
11. Rad1 {+0.15/12} Nd7 {+0.11/14} 12. b3 {+0.16/13} f5 {+0.15/14} 13.
e3 {+0.29/13} Nc5 {+0.25/14} 14. Qc2 {+0.15/12} a5 {+0.25/14} 15.
Nb5 {+0.14/12} Qd7 {+0.35/13} 16. Kh1 {+0.03/11} Bf6 {+0.44/13} 17.
Nd2 {-0.11/12} Rae8 {+0.47/12} 18. Nf3 {-0.12/12} Ba6 {+0.47/12} 19.
Nc3 {+0.00/13} Qf7 {+0.54/13} 20. Ne2 {+0.07/12} Qh5 {+0.73/13} 21.
a3 {+0.02/12} b5 {+0.62/13} 22. b4 {-0.11/13} axb4 {+0.71/14} 23.
axb4 {-0.12/12} Ne4 {+0.65/14} 24. cxb5 {-0.31/14} Bxb5 {+0.52/14} 25.
Nfg1 {-0.57/13} Bd8 {+0.59/14} 26. Bf3 {-0.11/12} Qg6 {+0.66/14} 27.
Bg2 {-0.06/11} Nf6 {+0.73/13} 28. Rfe1 {+0.12/12} Qh6 {+0.79/13} 29.
Nh3 {+0.18/12} Kh8 {+0.75/12} 30. Neg1 {-0.11/12} Ng4 {+0.75/13} 31.
Ne2 {-0.04/11} Kg8 {+0.80/13} 32. Qc3 {+0.16/11} Bg5 {+0.95/12} 33.
Qxc7 {+0.36/11} Nxf2+ {+0.87/13} 34. Nxf2 {+0.03/15} Bxe3 {+1.08/14} 35.
Nh3 {-0.26/15} Bd2 {+1.10/14} 36. Rxd2 {-0.32/14} Qxd2 {+1.19/14} 37.
Qc3 {-0.96/15} Qh6 {+1.27/14} 38. Neg1 {-0.55/11} Rc8 {+1.36/14} 39.
Qb2 {-0.55/12} Rc7 {+1.31/14} 40. Nf3 {-0.27/13} Rfc8 {+1.48/12} 41.
Nfg5 {-0.39/14} Rc2 {+1.35/13} 42. Qa3 {-0.32/13} Qg6 {+1.23/13} 43.
Qa7 {-0.27/12} R2c7 {+1.07/13} 44. Qb6 {-0.39/14} Bd7 {+1.02/13} 45.
Bf1 {-0.24/13} Rc2 {+0.97/13} 46. Ba6 {-0.03/12} Ra8 {+0.97/13} 47.
Bd3 {-0.27/11} Rc3 {+0.88/13} 48. Bf1 {-0.25/13} Ra2 {+1.04/13} 49.
b5 {-0.07/11} Rcc2 {+1.53/12} 50. Kg1 {-0.07/11} e4 {+0.94/11} 51.
Ne6 {+1.08/12} Rxh2 {-0.15/11} 52. Qxd6 {+1.40/11} h6 {-0.70/12} 53.
b6 {+2.13/12} Rhb2 {-0.81/13} 54. Re2 {+2.21/11} Rxe2 {-0.95/13} 55.
Bxe2 {+2.29/12} Rxe2 {-0.99/13} 56. b7 {+2.26/12} Rb2 {-0.99/14} 57.
b8=Q+ {+2.29/13} Rxb8 {-1.23/16} 58. Qxb8+ {+2.50/14} Qe8 {-1.39/16} 59.
Qe5 {+2.50/15} Qg6 {-1.39/15} 60. Qb8+ {+2.49/13} Qe8 {+0.00/21} 61.
Qe5 {+2.42/14} Qg6 {+0.00/21} 62. Kf2 {+2.43/13} Qf7 {-1.18/13} 63.
Nhf4 {+2.62/12} Bb5 {-1.33/12} 64. d6 {+3.06/12} Bd7 {-2.07/12} 65.
Nc5 {+3.39/13} Qa2+ {-1.18/13} 66. Ne2 {+3.38/13} Bb5 {-1.82/13} 67.
Qe6+ {+3.43/15} Qxe6 {-2.13/16} 68. Nxe6 {+4.20/18} g6 {-2.13/15} 69.
N2d4 {+4.71/15} Be8 {-2.28/16} 70. Nc5 {+4.73/16} Kf7 {-2.25/16} 71.
Ke3 {+4.85/16} h5 {-2.94/16} 72. Kf4 {+5.32/16} Kf6 {-0.59/15} 73.
d7 {+5.91/16} g5+ {+0.00/15} 74. Ke3 f4+ {+0.00/15} 75. gxf4 {+8.13/16}
gxf4+ {+0.00/15} 76. Kxe4 {+8.52/19} Bxd7 {+0.00/15} 77. Nxd7+ {+8.52/20}
Kg7 {+0.00/16} 78. Kxf4 {+8.58/18} Kh8 {+0.00/17} 79. Ne6 {+8.62/20}
h4 {+0.00/19} 80. Kg4 {+8.63/22} Kg8 {+0.00/20} 81. Ne5 {+8.63/20}
Kh8 {+0.00/21} 82. Kh5 {+99.83/17} h3 {+0.00/24} 83. Kg6 {+99.89/10}
Kg8 {+0.00/23} 84. Nf7 {+99.91/8} h2 {+0.00/32} 85. Nh6+ {+99.93/7}
Kh8 {+0.00/34} 86. Ng5 {+99.95/6} h1=B {+0.00/80}
{Insufficient Material} 1/2-1/2
[diag]4rrk1/2Q3pp/3p3q/1b1Pppb1/1P6/4P1P1/4NNBP/3RR2K b - - 0 34[/diag]
4rrk1/2Q3pp/3p3q/1b1Pppb1/1P6/4P1P1/4NNBP/3RR2K b - - 0 34
[diag]6k1/3b2pp/1Q1p2q1/1P1PppN1/8/6PN/r1r4P/4RBK1 b - - 0 50[/diag]
6k1/3b2pp/1Q1p2q1/1P1PppN1/8/6PN/r1r4P/4RBK1 b - - 0 50
This and the following move lose all White pawns now!
[diag]4b3/5k2/3P2p1/2N2p1p/3Np3/4K1P1/8/8 w - - 0 72[/diag]
4b3/5k2/3P2p1/2N2p1p/3Np3/4K1P1/8/8 w - - 0 72
After 73.d7 Spike shows 0.00 score!
[diag]4b3/3P4/5kp1/2N2p1p/3NpK2/6P1/8/8 b - - 0 73[/diag]
4b3/3P4/5kp1/2N2p1p/3NpK2/6P1/8/8 b - - 0 73
After 78...Kg7? Fritz8 with all 5 men says mate in 96!!
[diag]8/3N2k1/8/7p/3NKp2/8/8/8 w - - 0 78[/diag]
8/3N2k1/8/7p/3NKp2/8/8/8 w - - 0 78
Now h4 and Kf7! draw according to the 5 men!
[diag]8/3N2k1/8/7p/3N1K2/8/8/8 b - - 0 78[/diag]
8/3N2k1/8/7p/3N1K2/8/8/8 b - - 0 78
80...Kh8? finally lost after both played not the best moves before,
80...h3 would have drawn immediately!
I want to show though how near yet Spike was to a draw, because
Amateur with lack of knowledge wanted to play Kxh4?? until the first
iteration of ply 17. But after it had avoided it mate score was already
delivered!
3615028 <second: move g8h8
3615028 >first : time 88420
otim 90242
3615028 >first : usermove 3615028 >first : g8h8
3615298 <first : 6 860 0 3529 Kxh4 Kh7
3615308 <first : 7 862 0 6392 Kxh4 Kg8
3615328 <first : 8 862 1 13693 Kxh4 Kh7
3615338 <first : 9 863 3 23719 Kxh4 Kh7 Kg3 Kh6 Kf4 Kh5 Ke4 Kh4 Kd5
3615378 <first : 10 863 8 47549 Kxh4 Kh7 Kg5
3615419 <first : 11 863 11 70734 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4
3615489 <first : 12 863 20 114757 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4
3615629 <first : 13 863 34 199023 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4 Kh5 Ke4
3615879 <first : 14 863 57 346145 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4 Kh5 Kd5
3616250 <first : 15 863 95 574987 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd4
3616891 <first : 16 863 158 957079 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd3
3618533 <first : 17 863 324 1948312 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd3 Kg8 Kd4 Kh7 Ke4
3619615 <first : 17 9983 431 2602345 Kh5 h3
3619625 <first : 17 9983 431 2604158 Kh5 h3
3619625 <first : move g4h5
[diag]7k/8/4N3/4N3/6Kp/8/8/8 w - - 0 82[/diag]
7k/8/4N3/4N3/6Kp/8/8/8 w - - 0 82
The final nice position, when Spike claimed the draw
(mate in 1 with Nf7## of course)
[diag]7k/8/6KN/6N1/8/8/8/7b w - - 0 87[/diag]
7k/8/6KN/6N1/8/8/8/7b w - - 0 87
but somehow the game turned around move 45-50.
Both reached a highly interesting endgame with
2N vs. P (both don't use tablebases) and an opposite
approach, because obviously Amateur does not know
that 2N alone 'normally' cannot mate, when Spike
'assumes' 2N never mate.
Amateur often accidently could avoid taking the last pawn
by just one iteration and finally found the mate!
In the end finally Spike made a wrong draw claim according
to its wrong knowledge, when actually mate in 1 was going
to be delivered! (Result will be corrected of course)
[Event "RWBC_Class_B_5th_Edition"]
[Site "ESPRESSO"]
[Date "2005.03.30"]
[Round "14"]
[Number "275"]
[White "Amateur_286"]
[Black "Spike_09"]
[Result "1/2-1/2"]
[TimeControl "40/900"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Bd2 d6 8.
d5 {+0.19/12} Nxd2 9. Qxd2 {+0.15/13} e5 10. O-O {+0.13/14} O-O {+0.01/14}
11. Rad1 {+0.15/12} Nd7 {+0.11/14} 12. b3 {+0.16/13} f5 {+0.15/14} 13.
e3 {+0.29/13} Nc5 {+0.25/14} 14. Qc2 {+0.15/12} a5 {+0.25/14} 15.
Nb5 {+0.14/12} Qd7 {+0.35/13} 16. Kh1 {+0.03/11} Bf6 {+0.44/13} 17.
Nd2 {-0.11/12} Rae8 {+0.47/12} 18. Nf3 {-0.12/12} Ba6 {+0.47/12} 19.
Nc3 {+0.00/13} Qf7 {+0.54/13} 20. Ne2 {+0.07/12} Qh5 {+0.73/13} 21.
a3 {+0.02/12} b5 {+0.62/13} 22. b4 {-0.11/13} axb4 {+0.71/14} 23.
axb4 {-0.12/12} Ne4 {+0.65/14} 24. cxb5 {-0.31/14} Bxb5 {+0.52/14} 25.
Nfg1 {-0.57/13} Bd8 {+0.59/14} 26. Bf3 {-0.11/12} Qg6 {+0.66/14} 27.
Bg2 {-0.06/11} Nf6 {+0.73/13} 28. Rfe1 {+0.12/12} Qh6 {+0.79/13} 29.
Nh3 {+0.18/12} Kh8 {+0.75/12} 30. Neg1 {-0.11/12} Ng4 {+0.75/13} 31.
Ne2 {-0.04/11} Kg8 {+0.80/13} 32. Qc3 {+0.16/11} Bg5 {+0.95/12} 33.
Qxc7 {+0.36/11} Nxf2+ {+0.87/13} 34. Nxf2 {+0.03/15} Bxe3 {+1.08/14} 35.
Nh3 {-0.26/15} Bd2 {+1.10/14} 36. Rxd2 {-0.32/14} Qxd2 {+1.19/14} 37.
Qc3 {-0.96/15} Qh6 {+1.27/14} 38. Neg1 {-0.55/11} Rc8 {+1.36/14} 39.
Qb2 {-0.55/12} Rc7 {+1.31/14} 40. Nf3 {-0.27/13} Rfc8 {+1.48/12} 41.
Nfg5 {-0.39/14} Rc2 {+1.35/13} 42. Qa3 {-0.32/13} Qg6 {+1.23/13} 43.
Qa7 {-0.27/12} R2c7 {+1.07/13} 44. Qb6 {-0.39/14} Bd7 {+1.02/13} 45.
Bf1 {-0.24/13} Rc2 {+0.97/13} 46. Ba6 {-0.03/12} Ra8 {+0.97/13} 47.
Bd3 {-0.27/11} Rc3 {+0.88/13} 48. Bf1 {-0.25/13} Ra2 {+1.04/13} 49.
b5 {-0.07/11} Rcc2 {+1.53/12} 50. Kg1 {-0.07/11} e4 {+0.94/11} 51.
Ne6 {+1.08/12} Rxh2 {-0.15/11} 52. Qxd6 {+1.40/11} h6 {-0.70/12} 53.
b6 {+2.13/12} Rhb2 {-0.81/13} 54. Re2 {+2.21/11} Rxe2 {-0.95/13} 55.
Bxe2 {+2.29/12} Rxe2 {-0.99/13} 56. b7 {+2.26/12} Rb2 {-0.99/14} 57.
b8=Q+ {+2.29/13} Rxb8 {-1.23/16} 58. Qxb8+ {+2.50/14} Qe8 {-1.39/16} 59.
Qe5 {+2.50/15} Qg6 {-1.39/15} 60. Qb8+ {+2.49/13} Qe8 {+0.00/21} 61.
Qe5 {+2.42/14} Qg6 {+0.00/21} 62. Kf2 {+2.43/13} Qf7 {-1.18/13} 63.
Nhf4 {+2.62/12} Bb5 {-1.33/12} 64. d6 {+3.06/12} Bd7 {-2.07/12} 65.
Nc5 {+3.39/13} Qa2+ {-1.18/13} 66. Ne2 {+3.38/13} Bb5 {-1.82/13} 67.
Qe6+ {+3.43/15} Qxe6 {-2.13/16} 68. Nxe6 {+4.20/18} g6 {-2.13/15} 69.
N2d4 {+4.71/15} Be8 {-2.28/16} 70. Nc5 {+4.73/16} Kf7 {-2.25/16} 71.
Ke3 {+4.85/16} h5 {-2.94/16} 72. Kf4 {+5.32/16} Kf6 {-0.59/15} 73.
d7 {+5.91/16} g5+ {+0.00/15} 74. Ke3 f4+ {+0.00/15} 75. gxf4 {+8.13/16}
gxf4+ {+0.00/15} 76. Kxe4 {+8.52/19} Bxd7 {+0.00/15} 77. Nxd7+ {+8.52/20}
Kg7 {+0.00/16} 78. Kxf4 {+8.58/18} Kh8 {+0.00/17} 79. Ne6 {+8.62/20}
h4 {+0.00/19} 80. Kg4 {+8.63/22} Kg8 {+0.00/20} 81. Ne5 {+8.63/20}
Kh8 {+0.00/21} 82. Kh5 {+99.83/17} h3 {+0.00/24} 83. Kg6 {+99.89/10}
Kg8 {+0.00/23} 84. Nf7 {+99.91/8} h2 {+0.00/32} 85. Nh6+ {+99.93/7}
Kh8 {+0.00/34} 86. Ng5 {+99.95/6} h1=B {+0.00/80}
{Insufficient Material} 1/2-1/2
[diag]4rrk1/2Q3pp/3p3q/1b1Pppb1/1P6/4P1P1/4NNBP/3RR2K b - - 0 34[/diag]
4rrk1/2Q3pp/3p3q/1b1Pppb1/1P6/4P1P1/4NNBP/3RR2K b - - 0 34
[diag]6k1/3b2pp/1Q1p2q1/1P1PppN1/8/6PN/r1r4P/4RBK1 b - - 0 50[/diag]
6k1/3b2pp/1Q1p2q1/1P1PppN1/8/6PN/r1r4P/4RBK1 b - - 0 50
This and the following move lose all White pawns now!
[diag]4b3/5k2/3P2p1/2N2p1p/3Np3/4K1P1/8/8 w - - 0 72[/diag]
4b3/5k2/3P2p1/2N2p1p/3Np3/4K1P1/8/8 w - - 0 72
After 73.d7 Spike shows 0.00 score!
[diag]4b3/3P4/5kp1/2N2p1p/3NpK2/6P1/8/8 b - - 0 73[/diag]
4b3/3P4/5kp1/2N2p1p/3NpK2/6P1/8/8 b - - 0 73
After 78...Kg7? Fritz8 with all 5 men says mate in 96!!
[diag]8/3N2k1/8/7p/3NKp2/8/8/8 w - - 0 78[/diag]
8/3N2k1/8/7p/3NKp2/8/8/8 w - - 0 78
Now h4 and Kf7! draw according to the 5 men!
[diag]8/3N2k1/8/7p/3N1K2/8/8/8 b - - 0 78[/diag]
8/3N2k1/8/7p/3N1K2/8/8/8 b - - 0 78
80...Kh8? finally lost after both played not the best moves before,
80...h3 would have drawn immediately!
I want to show though how near yet Spike was to a draw, because
Amateur with lack of knowledge wanted to play Kxh4?? until the first
iteration of ply 17. But after it had avoided it mate score was already
delivered!
3615028 <second: move g8h8
3615028 >first : time 88420
otim 90242
3615028 >first : usermove 3615028 >first : g8h8
3615298 <first : 6 860 0 3529 Kxh4 Kh7
3615308 <first : 7 862 0 6392 Kxh4 Kg8
3615328 <first : 8 862 1 13693 Kxh4 Kh7
3615338 <first : 9 863 3 23719 Kxh4 Kh7 Kg3 Kh6 Kf4 Kh5 Ke4 Kh4 Kd5
3615378 <first : 10 863 8 47549 Kxh4 Kh7 Kg5
3615419 <first : 11 863 11 70734 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4
3615489 <first : 12 863 20 114757 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4
3615629 <first : 13 863 34 199023 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4 Kh5 Ke4
3615879 <first : 14 863 57 346145 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd5 Kh6 Kd4 Kh5 Kd5
3616250 <first : 15 863 95 574987 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd4
3616891 <first : 16 863 158 957079 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd3
3618533 <first : 17 863 324 1948312 Kxh4 Kh7 Kg5 Kh8 Kf4 Kg8 Ke4 Kh7 Kd3 Kg8 Kd4 Kh7 Ke4
3619615 <first : 17 9983 431 2602345 Kh5 h3
3619625 <first : 17 9983 431 2604158 Kh5 h3
3619625 <first : move g4h5
[diag]7k/8/4N3/4N3/6Kp/8/8/8 w - - 0 82[/diag]
7k/8/4N3/4N3/6Kp/8/8/8 w - - 0 82
The final nice position, when Spike claimed the draw
(mate in 1 with Nf7## of course)
[diag]7k/8/6KN/6N1/8/8/8/7b w - - 0 87[/diag]
7k/8/6KN/6N1/8/8/8/7b w - - 0 87