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Subject: Re: end game position...

Author: John Merlino

Date: 20:30:45 07/08/02

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On July 08, 2002 at 21:44:32, Mike Byrne wrote:

>from today's second game between modified Crafty (W) vs and Tiger (B) game
>40/120 ....I was thinkinh that black almost had this win wrapped up ...match is
>now tied with 2 draws...
>
>
>[D] 8/8/5p2/5N1p/4P1n1/5k2/8/6K1 b - - 64; bm Ng7! forces draw
>
>
>         nss  depth   time  score   variation (18)
>               18->   2:08  -3.66   65. Kh2 Kf4 66. Ng3 Kg4 67. Nf5 Nxe4
>                                    68. Ne3+ Kg5 69. Kh3 Nf2+ 70. Kg3 Nd3
>                                    71. Kf3 Ne5+ 72. Ke4 h4 73. Nf1 h3
>                                    74. Nh2 Nc4 75. Kf3 f5 <HT>
>               19     4:11  -3.73   65. Kh2 Kf4 66. Ng3 Kg4 67. Nf5 Nxe4
>                                    68. Ne3+ Kg5 69. Kh3 Nf2+ 70. Kg3 Nd3
>                                    71. Kh3 f5 72. Nc4 h4 73. Nd2 Nf4+
>                                    74. Kh2 Kg4 75. Nc4 Nd3 76. Ne3+ Kg5
>               19     5:44     ++   65. Ng7!!
>         (4)   19->   5:45  -3.32   65. Ng7
>         (3)   20     6:12  -3.51   65. Ng7 h4 66. Nf5 h3 67. Kh2 Kxe4
>                                    68. Nd6+ Ke3 69. Nf5+ Kf3 70. Ne7 Kg4
>                                    71. Nd5 Ne4 72. Ne3+ Kh4 73. Nd5 <HT>
>
>and after 65. Ng7 h4 (force) the draw becomes more in focus
>
>Black(65): h4 [pondering]
>              time surplus  10:50  time limit 4:28 (23:51)
>         nss  depth   time  score   variation (16)
>               19    42.26  -3.51   66. Nf5 h3 67. Kh2 Kxe4 68. Nd6+ Ke3
>                                    69. Nf5+ Kf3 70. Ne7 Kg4 71. Nd5 Ne4
>                                    72. Ne3+ Kh4 73. Nd5 f5 74. Ne7 Nd6
>                                    75. Nd5 Kg4 76. Ne3+ Kh4 77. Nd5
>               19->  51.54  -3.51   66. Nf5 h3 67. Kh2 Kxe4 68. Nd6+ Ke3
>                                    69. Nf5+ Kf3 70. Ne7 Kg4 71. Nd5 Ne4
>                                    72. Ne3+ Kh4 73. Nd5 f5 74. Ne7 Nd6
>                                    75. Nd5 Kg4 76. Ne3+ Kh4 77. Nd5
>               20     1:32  -3.54   66. Nf5 h3 67. Kh2 Kxe4 68. Nd6+ Ke3
>                                    69. Nf5+ Kf3 70. Ne7 Kg4 71. Nd5 Ne4
>                                    72. Ne3+ Kh4 73. Nd5 f5 74. Ne7 Nd6
>                                    75. Nd5 Nf7 76. Nf4 Ng5 77. Nd5
>               20->   1:46  -3.54   66. Nf5 h3 67. Kh2 Kxe4 68. Nd6+ Ke3
>                                    69. Nf5+ Kf3 70. Ne7 Kg4 71. Nd5 Ne4
>                                    72. Ne3+ Kh4 73. Nd5 f5 74. Ne7 Nd6
>                                    75. Nd5 Nf7 76. Nf4 Ng5 77. Nd5
>               21     2:45     ++   66. Nf5!!
>               21     4:02  -1.56   66. Nf5 h3 67. Kh2 Kxe4 68. Ng3+ Kf3
>                                    69. Nf5 Kg4 70. Ne3+ Kh4 71. Nf5+ Kg5
>                                    72. Ne7 Kg4 73. Nd5 Ne4 74. Ne3+ Kh4
>                                    75. Nf5+ Kg5 76. Ne3 Nf2 77. Nd5 f5
>                                    78. Kg3 Nd3 79. Kxh3
>               21->   4:31  -1.56   66. Nf5 h3 67. Kh2 Kxe4 68. Ng3+ Kf3
>                                    69. Nf5 Kg4 70. Ne3+ Kh4 71. Nf5+ Kg5
>                                    72. Ne7 Kg4 73. Nd5 Ne4 74. Ne3+ Kh4
>                                    75. Nf5+ Kg5 76. Ne3 Nf2 77. Nd5 f5
>                                    78. Kg3 Nd3 79. Kxh3
>               22     6:46     ++   66. Nf5!!
>
>Mike

Chessmaster 9000, on a humble PIII-600, needs only three seconds to see the
drawing move. But it needs 4:21 to give it a "drawish" score:

Time	Depth	Score	Positions	Moves
0:00	3/7	-2.36	11258		1.Kh1 Nf2+ 2.Kh2 Nxe4 3.Kh3 Kf4
					4.Nd4 Nf2+ 5.Kh4 Ke4
0:00	4/8	-2.36	20006		1.Kh1 Nf2+ 2.Kh2 Nxe4 3.Kh3 Kf4
					4.Nd4 Nf2+ 5.Kh4 Ke4
0:00	5/9	-2.40	42935		1.Kh1 Nf2+ 2.Kh2 Nxe4 3.Kh3 Kf4
					4.Ne7 f5 5.Kh4 Nf6
0:01	6/10	-2.38	96561		1.Kh1 Nf2+ 2.Kh2 Kf4 3.Ne7 Kxe4
					4.Kg3 Nd3 5.Ng8 Ke5 6.Ne7 f5
0:02	7/11	-2.40	226538		1.Kh1 Nf2+ 2.Kh2 Kg4 3.Kg2 Nxe4
					4.Ne3+ Kf4 5.Nd5+ Ke5 6.Nb4 Nd2
					7.Nd3+ Ke4 8.Nc5+ Ke3 9.Ne6
0:03	7/11	-2.24	312915		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Kg6 5.Ne6 Kf7 6.Nd4 Ne3+ 7.Kh3
0:03	8/12	-2.42	393606		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Ke5 5.Ne8 Ne3+ 6.Kh3 Nf5 7.Nc7
					Ke4 8.Ne6
0:06	9/13	-2.42	680094		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Ke5 5.Ne8 Ne3+ 6.Kh3 Nf5 7.Nc7
					Ke4 8.Ne6
0:11	10/14	-2.34	1316665		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Ke5 5.Ne8 Ne3+ 6.Kh3 Nf5 7.Nc7
					Kd6 8.Nb5+ Kd5 9.Nc3+ Ke5 10.Kg2
0:18	11/15	-2.40	2235054		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Ke5 5.Ne8 Ne3+ 6.Kh3 Nf5 7.Nc7
					Kd6 8.Nb5+ Kd5 9.Nc3+ Ke5 10.Ne2
0:32	12/16	-2.00	4041038		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Kg6 5.Ne6 Ne5 6.Kh3 Kf7 7.Nd4 Ng6
					8.Kg4 Ke7 9.Kh3 Kd7
0:51	13/17	-1.75	6607349		1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Kg6 5.Ne6 Ne5 6.Kh3 Kf7 7.Nd4 Ng6
					8.Kg4 Kg8 9.Nf5 Kf8 10.Nxh4 Nxh4
					11.Kxh4
1:21	14/18	-1.75	10660065	1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Kg6 5.Ne6 Ne5 6.Kh3 Kf7 7.Nd4 Ng6
					8.Kg4 Kg8 9.Nf5 Kf8 10.Nxh4 Nxh4
					11.Kxh4
4:21	15/19	-0.30	35749988	1.Ng7 h4 2.Nh5 Kxe4 3.Kg2 Kf5 4.Ng7+
					Kg6 5.Ne6 Ne5 6.Kh3 Kf7 7.Nd4 Ng6
					8.Kg4 Ke7 9.Kh5 h3 10.Kxg6 h2 11.Nf5+
					Ke6 12.Ng3

jm



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