Author: Dann Corbit
Date: 16:19:03 01/16/03
Go up one level in this thread
On January 16, 2003 at 14:25:42, John Merlino wrote:
>On January 16, 2003 at 12:29:55, David Rasmussen wrote:
>
>>[D]r4rk1/p2pbpp1/b1p1p3/4P1P1/q1P1NP1p/1RQ4K/P1R3BP/8 w - - 0 25
>>
>>Nf6+
>>
>>/David
>
>Perhaps that is the best move, but it appears that Nd6 also wins. Output from
>Chessmaster 9000 on a P3-733:
>
>Time Depth Score Positions Moves
>0:00 1/3 0.25 1139 25.Kxh4 Rab8 26.Nd6
>0:00 1/4 0.27 3521 25.Kxh4 Rab8 26.Nd6 Rxb3 27.axb3
>0:00 1/4 0.41 5376 25.Nd6 Bxd6 26.exd6 Rab8 27.Kxh4 c5
>0:00 1/5 2.04 12799 25.Nd6 Bxd6 26.exd6 Bxc4 27.Qxc4
> Qa5 28.Kxh4 Qf5
>0:00 1/6 2.10 35334 25.Nd6 Bxd6 26.exd6 Rfb8 27.Ra3
> Qxc4 28.Qxc4 Bxc4 29.Rxc4 Rb2 30.Rca4
>0:01 1/7 2.10 63924 25.Nd6 Bxd6 26.exd6 Rfb8 27.Ra3
> Qxc4 28.Qxc4 Bxc4 29.Rxc4 Rb2 30.Rca4
>0:02 1/8 2.36 150919 25.Nd6 Bxd6 26.exd6 Bxc4 27.Qxc4
> Qa5 28.Qc5 Qa4 29.Rb4 Qa3+ 30.Kxh4
>0:05 1/9 2.68 381954 25.Nd6 Bxd6 26.exd6 Bxc4 27.Qxc4
> Qa5 28.Rb7 Rfd8 29.Kxh4 Qe1+ 30.Kh3
> Qe3+ 31.Kg4
>0:11 1/10 2.76 779086 25.Nd6 Bxd6 26.exd6 Bxc4 27.Qxc4
> Qa5 28.Qc5 Qe1 29.Rb7 Rfd8 30.Qc3
> Qg1
>0:21 2/11 2.72 1669113 25.Nd6 Bxd6 26.exd6 Bxc4 27.Qxc4
> Qa5 28.Qc5 Qe1 29.Rb7 Rfd8 30.Qf2
> Qd1 31.Rd2
>1:20 3/12 2.90 7301269 25.Nd6 Bxd6 26.exd6 f6 27.g6 Rfb8
> 28.Ra3 Qxc4 29.Qxc4 Bxc4 30.Rxc4
> Rb2 31.Rca4 a6 32.Rxa6 Rc8 33.Ra7
>4:24 4/13 2.88 23894117 25.Nd6 Bxd6 26.exd6 Bxc4 27.Qxc4
> Qa5 28.Qc5 Qa6 29.Kxh4 Rfb8 30.Qa3
> Qc8 31.Rxb8 Qxb8 32.Rb2
Ruffian also likes Nd6, but thought long and hard on Nf6+ on each of the late
passes.
E:\programme\winboard\ruffian>ruffian -h 300M -T \nd6.epd -t 9999 -p 19
Hash size 314572800
Ruffian 1.0.1
feature done=0
Loading configuration: ruffian.cfg
Warning: EGTB_HASH_SIZE changed, default=1048576, newvalue=8388608
Logfile: Thu Jan 16 14:08:36 2003
Total hash size 300M
Initializing tablebases: /programme/winboard/nalimov
Testing \nd6.epd, 9999 seconds, extra ply 19
Testing: test 1 Solution: Nf6+ Nd6
r4rk1/p2pbpp1/b1p1p3/4P1P1/q1P1NP1p/1RQ4K/P1R3BP/8 w - -
Depth Time Score Best line
9--> 1.05 1.84 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2
10/20 1.53 1.95 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rc5
10--> 1.95 1.95 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rc5
11/24 6.24 ++ Nd6
11/24 9.99 2.61 Nd6 Bxd6 exd6 f6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 fxg5 fxg5
Rf2 Rxh4
11--> 10.69 2.61 Nd6 Bxd6 exd6 f6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 fxg5 fxg5
Rf2 Rxh4
12/28 17.37 2.62 Nd6 Bxd6 exd6 f6 gxf6 Rxf6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4
Rg6 Rca4 Rxg2 Kxg2
12--> 19.45 2.62 Nd6 Bxd6 exd6 f6 gxf6 Rxf6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4
Rg6 Rca4 Rxg2 Kxg2
13/32 32.00 2.56 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rca4
a6 Rxa6 Rab8
13--> 51.68 2.56 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rca4
a6 Rxa6 Rab8
14/34 1:18 2.83 Nd6 Bxd6 exd6 f6 gxf6 Rxf6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4
Kf7 Bf3 Rf5 Kxh4 Rh8+ Kg3
14--> 1:47 2.83 Nd6 Bxd6 exd6 f6 gxf6 Rxf6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4
Kf7 Bf3 Rf5 Kxh4 Rh8+ Kg3
15/35 2:36 2.85 Nd6 Bxd6 exd6 f6 gxf6 Rxf6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4
Kf7 Ra5 Rf5 Rca4 Rxa5 Rxa5 Kf6 Kxh4
15--> 3:41 2.85 Nd6 Bxd6 exd6 f6 gxf6 Rxf6 Ra3 Qxc4 Qxc4 Bxc4 Rxc4
Kf7 Ra5 Rf5 Rca4 Rxa5 Rxa5 Kf6 Kxh4
16/39 7:41 3.00 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rca4
a6 Rxa6 Rxa6 Rxa6 f6 Ra8+ Kh7 Be4+ f5
16--> 16:05 3.00 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rca4
a6 Rxa6 Rxa6 Rxa6 f6 Ra8+ Kh7 Be4+ f5
17/41 24:23 3.01 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 f6 gxf6
gxf6 Rca4 a6 Rxa6 Rxa6 Rxa6 Rb4 Kxh4 Rxf4+ Kg3
17--> 64:02 3.01 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 f6 gxf6
gxf6 Rca4 a6 Rxa6 Rxa6 Rxa6 Rb4 Kxh4 Rxf4+ Kg3
18/47 90:40 3.14 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rca4
Rd2 Rxa7 Rxa7 Rxa7 Rxd6 Kxh4 Rd2 Ra8+ Kh7 Be4+ g6
Kg3
18--> 122:53 3.14 Nd6 Bxd6 exd6 Rfb8 Ra3 Qxc4 Qxc4 Bxc4 Rxc4 Rb2 Rca4
Rd2 Rxa7 Rxa7 Rxa7 Rxd6 Kxh4 Rd2 Ra8+ Kh7 Be4+ g6
Kg3
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