Author: Dan Ellwein
Date: 06:54:28 05/06/04
Go up one level in this thread
On May 05, 2004 at 22:37:31, John Merlino wrote: >On May 05, 2004 at 20:00:05, George Tsavdaris wrote: > >>On May 05, 2004 at 18:15:54, Vincent Lejeune wrote: >> >>>In the article "Tactics from the Russian Team Champ" on the chessbase site ( >>>http://www.chessbase.com/newsdetail.asp?newsid=1625 ) >>>We can see this position : >>>[D]r1r3k1/3n1b2/p1qp3Q/1p2p2p/4P3/1PP1BP2/2P5/1K1R1B2 w - - 0 29 >>>with the comment "29.Bxb5!! ...this clearance sacrifice."; In fact Bxb5 is only >>>the third best move, Chessmaster 9000 confirms that with the 3 best moves mode : >> >> As all moves lead to mate, all moves are the best ones. So i don't think Bxb5 >>deserves a (!!) but only a (!) . >> Also the below analysis doesn't prove that Bxb5 is not a mate in 6 or 7 for >>example, so it may be the quickest mate after all. > >I have determined with reasonable certainty, from a little bit of poking around >with lines, that Bxb5 is at most a Mate in 14. There may be a Mate in 13 lurking >around in there, but no less. > >>> >>>Time Depth Score Positions Moves >>>4:48 1/13 Mate07 127988483 29.Bh3 Nf6 30.Qxf6 Qe8 31.Bh6 Qf8 >>> 32.Rg1+ Bg6 33.Qxg6+ Kh8 34.Bxf8 >>> Rxf8 35.Qg7# >>>4:54 1/13 Mate08 130793582 29.Bc4 Qxc4 30.Rg1+ Bg6 31.Rxg6+ >>> Kf7 32.Rg7+ Ke8 33.bxc4 Rc7 34.Qxh5+ >>> Kd8 35.Qh8+ Nf8 36.Qxf8# >>>5:25 1/13 Mate15 145728017 29.Bxb5 Nf8 30.Rg1+ Bg6 31.Rxg6+ >>> Nxg6 32.Qxg6+ Kh8 33.Bg5 d5 34.Bxc6 >>> Rxc6 35.Qxc6 Rf8 36.Qh6+ Kg8 37.Qg6+ >>> Kh8 38.Qxh5+ Kg8 39.Bh6 Kh7 40.Bxf8+ >>> Kg8 41.Qh6 Kf7 42.Qg7+ Ke8 43.Qe7# > >jm Hi John CM9_OffSet finds a mate in 9 in 2 seconds, mate in 8 in 3 seconds, and a mate in 7 in 49 seconds... btw... congrats on promotion to manager, sounds like yer doin' pretty good :) P3/850 Time Depth Score Positions Moves 0:00 1/3 5.30 2567 1.Bxb5 Nf8 2.Bxc6 Rxc6 3.Rxd6 0:00 1/4 6.08 8065 1.Bxb5 Nf8 2.Rg1+ Bg6 3.Bxc6 Rxc6 4.Rxg6+ Nxg6 5.Qxg6+ Kf8 6.Bh6+ Ke7 7.Qxh5 0:00 1/5 6.60 47380 1.Bxb5 Nf8 2.Rg1+ Bg6 3.Rxg6+ Nxg6 4.Qxg6+ Kh8 5.Bxc6 Rxc6 6.Qxh5+ Kg7 7.c4 0:01 1/5 11.64 176677 1.Bc4 d5 2.Rg1+ Bg6 3.Bxd5+ Qxd5 4.Rxg6+ Kf7 5.Rg7+ Ke8 6.Qh8+ Nf8 7.Qxh5+ Ng6 8.Qxg6+ Kf8 9.exd5 0:02 1/5 Mate09 234747 1.Bh3 Bxb3 2.Rg1+ Kf7 3.Rg7+ Ke8 4.Qxh5+ Kd8 5.Bb6+ Rc7 6.Qh8+ Bg8 7.Rxg8+ Nf8 8.Rxf8+ Ke7 9.Qg7# 0:03 1/6 Mate08 282905 1.Bh3 Bxb3 2.Rg1+ Kf7 3.Rg7+ Ke8 4.Qh8+ Nf8 5.Qxh5+ Ng6 6.Qxg6+ Bf7 7.Qxf7+ Kd8 8.Bg5# 0:03 1/7 Mate08 380156 1.Bh3 Nf6 2.Rg1+ Ng4 3.Bxg4 Qxe4 4.Bf5+ Qg4 5.Bh7+ Kh8 6.Bg6+ Kg8 7.Qh7+ Kf8 8.Qxf7# 0:04 1/8 Mate08 504225 1.Bh3 Nf6 2.Rg1+ Ng4 3.Bxg4 Qxe4 4.Bf5+ Qg4 5.Bh7+ Kh8 6.Bg6+ Kg8 7.Qh7+ Kf8 8.Qxf7# 0:07 1/9 Mate08 824127 1.Bh3 Nf6 2.Rg1+ Ng4 3.Bxg4 Qxe4 4.Bf5+ Qg4 5.Bh7+ Kh8 6.Bg6+ Kg8 7.Qh7+ Kf8 8.Qxf7# 0:12 1/10 Mate08 1591551 1.Bh3 Nf6 2.Rg1+ Ng4 3.Bxg4 Qxe4 4.Bf5+ Qg4 5.Bh7+ Kh8 6.Bg6+ Kg8 7.Qh7+ Kf8 8.Qxf7# 0:24 1/11 Mate08 3323751 1.Bh3 Nf6 2.Rg1+ Ng4 3.Bxg4 Qxe4 4.Bf5+ Qg4 5.Bh7+ Kh8 6.Bg6+ Kg8 7.Qh7+ Kf8 8.Qxf7# 0:49 1/12 Mate07 6961309 1.Bh3 Nf6 2.Qxf6 Qe8 3.Bh6 Qf8 4.Rg1+ Bg6 5.Qxg6+ Kh8 6.Bxf8 Rxf8 7.Qg7# 1:22 1/13 Mate07 12000289 1.Bh3 Nf6 2.Qxf6 Qe8 3.Bh6 Qf8 4.Rg1+ Bg6 5.Qxg6+ Kh8 6.Bxf8 Rxf8 7.Qg7# Dan
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.