Author: John Merlino
Date: 19:13:35 10/29/05
Go up one level in this thread
On October 29, 2005 at 21:46:47, Will Singleton wrote: >Here are two positions from an ICC game today. A low-rated human played white >against Amateur, apparently a king-attack specialist. The second position is >what you get if you don't avoid the first. > >[d]rq3rk1/p2bbpp1/2p2n1B/4pP2/3pP3/3B3P/1PP1N1P1/R1Q2RK1 b - - am gxh6; "bm >Nh7"; CM9_R1 on an AMD 2500 needs four seconds to avoid gxh6: Time Depth Score Positions Moves 0:00 1/3 -1.97 1657 1...gxh6 2.Qxh6 Qxb2 3.Qg5+ Kh8 4.Qh4+ Kg7 0:00 1/4 -0.77 6717 1...gxh6 2.Qxh6 a5 3.Qg5+ Kh8 4.Qh4+ Kg7 5.Rf3 0:00 1/5 -1.36 29062 1...gxh6 2.Qxh6 Qd6 3.Qg5+ Kh8 4.Ng3 Nh7 0:00 1/6 -0.66 103173 1...gxh6 2.Qxh6 Qd8 3.Rf3 Nh7 4.c3 Bg5 5.Rg3 0:00 1/7 0.00 160313 1...gxh6 2.Qxh6 Nh7 3.f6 Bxf6 4.Rxf6 Nxf6 5.Qxf6 Qxb2 6.Qg5+ Kh7 7.Qh5+ Kg8 8.Qg5+ 0:02 1/7 -0.04 455370 1...Nh7 2.Bd2 Qb7 3.Ra5 c5 4.Qa1 a6 5.Ng3 0:02 1/7 -0.15 512205 1...Qd6 2.Bd2 Qc7 3.c3 dxc3 4.Qxc3 Qb6+ 5.Kh1 0:04 1/8 -0.22 816681 1...Qd6 2.Bg5 c5 3.Ng3 Qc7 4.b3 Rab8 5.Qa3 0:09 1/9 -0.25 1941046 1...Qd6 2.Rf3 a5 3.Rg3 Nh5 4.Rg4 Bf6 5.Ng3 Nxg3 6.Rxg3 0:17 1/10 -0.36 3678613 1...Qd6 2.Rf3 a5 3.Rg3 Nh5 4.Rg4 Kh8 5.Ng3 Qxh6 6.Qxh6+ gxh6 7.Nxh5 Rg8 8.Rxg8+ Kxg8 0:36 1/11 -0.30 8215407 1...Qd6 2.Rf3 a5 3.Rg3 Nh5 4.Rg4 Kh8 5.Bd2 Nf6 6.Rg5 Nh7 7.Rg3 >[d]rq3rk1/p2bbp2/2p2n1Q/4pP2/3pP3/3B3P/1PP1N1P1/R4RK1 b - - am Nh7; "bm Qd6"; Are you sure that Qd6 is better? It looks like Black is screwed at this point. Here's what The King says: Time Depth Score Positions Moves 0:00 1/5 0.52 28489 1...Qd6 2.Rf3 Ng4 3.Qxd6 Bxd6 4.hxg4 a5 0:00 1/5 -0.43 36214 1...Ne8 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Qxb2 5.Qg5+ Kh7 0:00 1/5 -0.66 63325 1...Qd8 2.Rf3 Nh7 3.c3 Bg5 4.Rg3 0:00 1/6 0.96 77867 1...Qd8 2.Rf3 Nh7 3.Rg3+ Ng5 4.h4 Rb8 5.hxg5 Rxb2 6.Rxa7 0:00 1/6 0.72 83612 1...Qd6 2.Rf3 Ng4 3.Qxd6 Bxd6 4.hxg4 a5 5.Bc4 0:00 1/6 0.00 100310 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Qxb2 5.Qg5+ Kh7 6.Qh5+ Kg8 7.Qg5+ 0:00 1/7 0.00 167195 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Qxb2 5.Qg5+ Kh7 6.Qh5+ Kg8 7.Qg5+ 0:01 1/8 0.00 359227 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Qxb2 5.Qg5+ Kh7 6.Qh5+ Kg8 7.Qg5+ 0:03 1/9 0.00 973759 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Qxb2 5.Qg5+ Kh7 6.Qh5+ Kg8 7.Qg5+ 0:09 1/10 0.06 2830218 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qg5+ Kh7 5.Qxf6 Qxb2 6.Ra5 Qb1+ 7.Kh2 c5 8.Qh4+ Kg8 9.Qg5+ Kh7 10.Rxc5 0:31 1/11 0.44 9538146 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Re8 5.Rf1 Be6 6.Qh6 Qxb2 7.Qg5+ Kh7 8.Qxe5 Rad8 9.Qh5+ Kg8 1:10 1/12 1.04 20118789 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Re8 5.Rf1 Be6 6.Ng3 Qxb2 7.Nh5 Kf8 8.Ng7 Kg8 9.Nxe8 Rxe8 10.Qxe5 7:51 1/13 1.74 117023310 1...Nh7 2.f6 Bxf6 3.Rxf6 Nxf6 4.Qxf6 Qd8 5.Qxe5 Qh4 6.Nxd4 Qh8 7.Qg3+ Qg7 8.Qxg7+ Kxg7 9.Ra6 Rfb8 10.b3 Rd8 11.Nxc6 Bxc6 12.Rxc6 And The King doesn't see anything better, at least not in under ten minutes.... jm
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