Author: Heiner Marxen
Date: 19:03:13 05/18/01
Go up one level in this thread
On May 17, 2001 at 13:50:30, leonid wrote:
>Hi!
>
>If somebody would like very easy mate, then this veriation from this first is
>exactly this.
>
>[D]qr3rqB/3k3B/N1qqq1NQ/Q1n1n2Q/1qQ1Qq1Q/2RNR2Q/Q2K3b/1q3q1b w - -
>
>Please indicate your result.
>
>Thanks,
>Leonid.
Mate in 8. Two key moves. On K7/600 with 350 MB hash Chest after 441.12 sec
(7.4 min) mutters:
Nxc5+ Qbxc5 Nxe5+ Qfxe5 Q6xe6+ Qdxe6 Nxc5+ Kc8 Qhxe6+ Qcxe6 Qxe6+ Qexe6
Qexe6+ Qxe6 Qxe6#
Nxe5+ Qfxe5 Nxc5+ Qbxc5 Q6xe6+ Qdxe6 Nxc5+ Kc8 Qhxe6+ Qcxe6 Qxe6+ Qexe6
Qexe6+ Qxe6 Qxe6#
As often, symetric solutions to a (nearly) symetric problem.
Timing info reveals that Chest does feel quite comfortly:
depth seconds
# 3 0.02 0.96 72- 0
# 4 0.24 1.12 667- 0
# 5 2.05 1.28 6153- 0
# 6 13.72 1.53 44092- 0
# 7 79.46 2.02 265586- 0
# 8 441.02 2.70 1524472- 9
white black quotients
mvx 8: 32 38 [ 32.000 1.188] 39
mvx 7: 708 722 [ 18.632 1.020] 91
mvx 6: 7324 8085 [ 10.144 1.104] 185
mvx 5: 57939 69121 [ 7.166 1.193] 1052 147
mvx 4: 423641 537738 [ 6.129 1.269] 5565 198
mvx 3: 2906635 3507479 [ 5.405 1.207]
mvx 2: 14814509 2992977 [ 4.224 0.202]
mvx 1: 275837 0 [ 0.092 ]
Also, black likes to deliver mate-in-1 to white:
anti: 2529687 try, 1637033 lists [64.71%], 2376273 moves [93.94%], 1461034 succ
[57.76%]
Cheers,
Heiner
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.