Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Trapped rook, CT15-Talion(GM) blitz game

Author: John Merlino

Date: 11:10:11 12/23/02

Go up one level in this thread


On December 23, 2002 at 12:45:09, Vincent Lejeune wrote:

>38. Qh3 ??? show it's still some weakness in the monster chessprograms ;)
>
>
>[Event "ICS Rated Blitz match"]
>[Site "chessclub.com"]
>[Date "2002.12.23"]
>[Round "-"]
>[White "wackyraces"]
>[Black "Talion"]
>[Result "0-1"]
>[WhiteElo "3431"]
>[BlackElo "3163"]
>[TimeControl "300+3"]
>
>1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Qc2 Nc6 8.
>Bg5 h6 9. Be3 a6 10. a3 Bxc3+ 11. bxc3 O-O 12. Bd3 dxc4 13. Bxc4 b5 14. Bd3
>Bb7 15. O-O Ne7 16. a4 Bxf3 17. gxf3 Qd5 18. Be4 Nxe4 19. fxe4 Qh5 20. f3
>Rac8 21. axb5 axb5 22. Qd3 f5 23. Bf4 Ng6 24. Bd6 Rfd8 25. Ra6 Kh8 26. Kh1
>Rd7 27. Rg1 Rcd8 28. e5 Nf4 29. Qe3 Nd5 30. Qd3 Rc8 31. Bc5 Nf4 32. Qe3 Nd5
>33. Qf2 Re8 34. Ra3 g5 35. Qf1 Rg7 36. Rg3 Reg8 37. Ra6 f4 38. Qh3 Qxh3 39.
>Rxh3 Kh7 40. Rxe6 Rg6 41. Rxg6 Kxg6 42. Kg2 h5 43. Kf2 Nxc3 44. Ke1 h4 45.
>Kd2 Nd5 46. Kc2 Kf5 47. Kd3 Ra8 48. Kc2 Ra2+ 49. Kb3 Re2 50. Bf8 Re3+ 51.
>Kc2 b4 52. Kd2 b3 53. Ba3 Nb6 54. Kd1 Nc4 55. Bb4 Rd3+ 56. Ke2 Rxd4 57. Bc3
>Rd5 58. e6 Kxe6 59. Ke1 Rd3 60. Ba1 b2 61. Bxb2 Nxb2 62. Ke2 Kd5 63. Ke1
>Kd4 64. Ke2 Kc3 65. Ke1 Re3+ 66. Kf1 Kd2 67. Rxh4 gxh4 68. Kg2 Nd3 69. Kh3
>Rxf3+ 70. Kg4 Rf2 71. h3 Rg2+ 72. Kf3 Rg3+ 73. Ke4 Rxh3 74. Kd5 f3 75. Kd4
>f2 76. Kd5 f1=N 77. Ke6 Ne3 78. Kf7 Rg3 79. Kf6 h3 80. Ke6 h2 81. Kd7 h1=R
>82. Ke6 Rh4 83. Kd6 Rg5 84. Ke6 Re4+ 85. Kd6 Rd5+ 86. Kc6 Ne5+ 87. Kc7 Nf5
>88. Kb6 Nd6 89. Kc7 Rc4+ 90. Kb6 Nc6 91. Kc7 Rcc5 92. Kd7 Nd4 93. Ke7 Ne4
>94. Kf8 Rc7 95. Ke8 Nd6+ 96. Kf8 Ne6+ 97. Kg8 Rf7 98. Kh8 Ng5 99. Kg8 Nf5
>100. Kh8 Rd6 101. Kg8 Rg6+ 102. Kh8 Rh7#

The funny thing is that the game went on about 45 moves longer than it should
have. In this position:

[D]8/8/8/4Pkp1/1BnP1p1p/1p2rP1R/7P/3K4 b - - 0 55

Black has a Mate in 13 with b2 or a Mate in 10 with Ke6! However, Talion played
Rd3+, which also wins, of course. The time control probably prevented the GM
from spotting either of these moves, however....

It takes CM9000, on a P3-733, 47 seconds to announce Mate in 15 with b2, 2:13 to
announce Mate in 13, and 3:28 to switch to Ke6 and announce Mate in 11, and it
finally announces Mate in 10 after 4:50....

Time	Depth	Score	Positions	Moves
0:00	1/4	-4.07	4098		55...Rd3+ 56.Ke2 Rxd4 57.Bc3 b2
					58.Bxb2 Rd2+ 59.Ke1 Rxb2
0:00	1/5	-4.76	9971		55...Rd3+ 56.Ke2 Rxd4 57.Bc3 b2
					58.Bxb2 Nxb2 59.e6 Kxe6
0:00	1/6	-5.95	28970		55...Rd3+ 56.Ke2 b2 57.Kxd3 b1=Q+
					58.Kxc4 Qf1+ 59.Kc5 Qxh3 60.d5
					Kxe5 61.Bc3+ Kf5
0:00	1/7	-7.52	72313		55...Rd3+ 56.Ke2 b2 57.Kxd3 Ne3
					58.Kc3 b1=Q 59.Bd6 Qf1 60.Rxh4
					Qc4+ 61.Kb2 gxh4
0:01	1/7	-9.62	102954		55...b2 56.Kc2 Re2+ 57.Kb1 Rg2
					58.Ka2 Rg1 59.Kb3 b1=Q+ 60.Kxc4
					Qf1+ 61.Kd5 Qxh3
0:01	2/8	-9.62	136015		55...b2 56.Kc2 Re2+ 57.Kb1 Rg2
					58.Ka2 Rg1 59.Kb3 b1=Q+ 60.Kxc4
					Qf1+ 61.Kd5 Qxh3
0:04	3/9	-11.28	392160		55...b2 56.Kc2 Re2+ 57.Kb1 Rg2
					58.Ka2 Rg1 59.Kb3 b1=Q+ 60.Kxc4
					Qf1+ 61.Kc5 Qxh3 62.d5 Qxf3
0:17	4/10	-15.63	1734658		55...b2 56.Kc2 Re2+ 57.Kb1 Rg2
					58.Ka2 Rc2 59.d5 Rc1 60.Kb3 b1=Q+
					61.Ka4 Nb6+ 62.Kb5 Nxd5 63.Ka6
					Nxb4+ 64.Kb5 Kxe5
0:47	5/11	-Mate15	4782164		55...b2 56.Kc2 Re2+ 57.Kb1 Rg2
					58.Ka2 Rc2 59.Rxh4 Rc1 60.Rxf4+
					gxf4 61.Kb3 b1=Q+ 62.Ka4 Qc2+ 63.Kb5
					Nd6+ 64.Bxd6 Qc4+ 65.Ka5 Ra1+ 66.Ba3
					Rxa3+ 67.Kb6 Ra6+ 68.Kb7 Qc6+ 69.Kb8
					Ra8#
2:13	6/12	-Mate13	14419075	55...b2 56.Kc2 Re2+ 57.Kb1 Rg2
					58.Ka2 Rg1 59.Kb3 b1=Q+ 60.Kxc4
					Rc1+ 61.Kb5 Qb3 62.Ka5 Qd5+ 63.Ka4
					Ra1+ 64.Ba3 Qc4+ 65.Ka5 Rxa3+ 66.Kb6
					Rb3+ 67.Ka5 Qb5#
3:28	6/12	-Mate11	22296199	55...Ke6 56.Kc1 b2+ 57.Kc2 Kd5
					58.Rg3 hxg3 59.hxg3 fxg3 60.Bd2
					Re2 61.Kb1 g2 62.Kc2 Rxd2+ 63.Kc3
					b1=N+ 64.Kb3 Rb2+ 65.Ka4 Nc3#
4:50	7/13	-Mate10	32333952	55...Ke6 56.Kc1 b2+ 57.Kc2 Kd5
					58.Rg3 hxg3 59.hxg3 fxg3 60.Bd2
					Re2 61.Kb1 g2 62.Kc2 Rxd2+ 63.Kc3
					b1=Q 64.f4 Qb2#

There are further mates that were missed at move 64 (mate in 7 with Kc3), move
65 (mates with both Rd2 and Nc4), move 70 (mate in 8 with Re3), move 73 (mates
with both Re3+ and f3), and, of course....

76...f1=N must have just been for fun. :-) Even after 81...h1=R, Black has a
mate in 4! Perhaps there was huge time trouble?

Either way, the GM certainly had his way with the Tiger!

jm



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.