Author: Richard A. Fowell (fowell@netcom.com)
Date: 19:22:06 05/16/99
Go up one level in this thread
On May 16, 1999 at 20:10:14, Francis Monkman wrote:
>Here's a good Mate in 9, which I've tried on a selection of engines:
>
>2n2r1k/1rqp2p1/2pR1p1p/1bP1p3/pP5R/P3P3/BB3PPP/3Q2K1 w - -
>
>The line goes:
>
>31. Rxh6+ gxh6 32. Qh5 Kg7 33. Qg4+ Kh7 34. Rxf6 Bd3 (or 34. Bb1+)
>35. Rxf8 Bg6 36. Bg8+ Kg7 37. Rf7+ Kxg8 38. Qxg6+ Kh8 39. Rh7++
>
>Almost all find 31. Rh6+ more or less immediately, although Hiarcs 7 would
>probably play 31. Bxe5 (also winning) at blitz. Times for Mate in 9 (200MHz):
>
>Junior 5 00:20
>LGG 2,0 00:27
>CSTal II 00:27 (giving a score of +34.60, not sure what this means)
>CM6000 00:30 (approx)
>Hiarcs 7 (180 MHz) 01:10 "White can mate in 13", it says, and remains content.
>Genius 6 01:30
MacChess 5.01 02:54 (Mac 604e/180)
>Crafty 16.6 03:00
>Fritz 5.32 11:14 Interesting...
>Der Bringer ?>30:00 Finds 31. Rxh6+ immediately -- I just love
>this GUI!
>
>Francis
>
>PS how do you put tabs into these messages?
I've added MacChess 5.01 above - it sees the key move in 2 seconds,
and announces mate in 9 at 02:54. I've appended the log information.
Richard A. Fowell (fowell@netcom.com)
http://directory.mozilla.org/Games/Board_Games/Chess/Software/Macintosh/
===== Log file information =============================================
MacChess 5.01, 4Mb hash, setting "infinite", 604e/180
2n2r1k/1rqp2p1/2pR1p1p/1bP1p3/pP5R/P3P3/BB3PPP/3Q2K1 w - -
02/01|00:00:00| 346| +57| Rd2 Ne7
03/01|00:00:00| 1634| +57| Rd2 Ne7 Ba1
04/01|00:00:00| 7974| +53| Rd2 Ne7 e4 Rfb8
05/01|00:00:00| 35961| +55| Rd2 Ne7 Qf3 Ng6 Rh5
06/01|00:00:01| 105178| +55| Rd2 Ne7 Qf3 Ng6 Rg4 Kh7
06/41|00:00:02| 263691| +298| Rxh6+ gxh6 Qh5 Kg7 Qg4+ Kh7 Rxf6 Ne7 Rxf8
07/01|00:00:03| 402848| +292| Rxh6+ gxh6 Qh5 Kg7 Qg4+ Kh7 Rxf6 Ne7 Rxf8 d5
08/01|00:00:06| 838845| +376| Rxh6+ gxh6 Qh5 Kg7 Qg4+ Kh7 Rxf6 Bd3 Rxf8 Bg6
Bxe5 Qxe5 Rxc8
09/01|00:00:12| 1946487| +379| Rxh6+ gxh6 Qh5 Kg7 Qg4+ Kh7 Rxf6 Bd3 Rxf8 Bg6
Qd1 Kg7 Bxe5+ Qxe5 Rxc8
10/01|00:01:14| 12617265|+M10 | Rxh6+ gxh6 Qh5 Kg7 Qg4+ Kh7 Bb1+ Bd3 Bxd3+
Kh8
Qh5 e4 Qxh6+ Kg8 Bc4+ Rf7 Bxf6 Nxd6
Qg7+
11/01|00:02:54| 29472674|+M9 | Rxh6+ gxh6 Qh5 Kg7 Qg4+ Kh7 Bb1+ Bd3 Bxd3+ e4
Bxe4+ Kh8 Rxf6 Qxh2+ Kxh2 Rg8 Rxh6+
1. Rxh6+
Sunday, May 16, 1999 7:12 PM
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