Friday, July 4, 2008

Is there really a mate in 9 ?

Ed Trice claims at his page: http://www.gothicchess.com/gv_release.html , that there would be a mate in 9 moves to be found by his Vortex in the shown position. But is this really true?

P.S.: of course, that old SMIRF version has no more chance there to avoid a defeat. Vortex detects the correct key move. But it would be nice to see how the 9 move mate should look like.
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2 comments:

GothicChessInventor said...

All you have to do is click on the picture and see the line it displays in the window.

Mate in 9

Of course it FINDS the mate in 9 in 6 seconds, and about 5 seconds later it finds a way to postpone mate in 9 by having white sacrifice a great deal of material.

July 7, 2008 at 3:38 AM
Smirf said...

Current SMIRF version MS-175c analyses:

01:54.8 (12.01=) +2.350 1.Nxj7 (=/=) g5 2.Bxf7 Nxf7 3.Aj5 Qf8 4.Qxf8 Rxf8 5.bxc4 Kxj7 6.Axh7 Bi2
01:03.6 (11.01=) +2.234 1.Nxj7 (=/=) g5 2.Bxf7 Nxf7 3.Aj5 dxc3 4.Bxc3 Qb6 5.g4 Qxf2 6.Axh7+ Kxh7 7.Ch3+ Nh6 8.Cxf2 Nxj7
00:36.1 (10.01=) +2.115 1.Nxj7 (bxc4) g5 2.Bxf7 Nxf7 3.Ag3 dxc3 4.Bxc3 b4 5.Bb2 i5
00:23.1 (09.01=) +1.893 1.Nxj7 (bxc4) Nxj7 2.Qi4 Kh8 3.Qxi7+ Kg7 4.Ai6+ Kf8 5.Axh7+ Ke8 6.Qxj7 dxc3 7.Bxc3 b4
00:21.7 (09.01+) +1.775 1.Nxj7 (bxc4) Nxj7 2.Qi4 i5 3.Axi5 Nxi5 4.Qxi5+ Kh8 5.Bi7+ Ki8 6.Bh6+ Kj7 7.Qi7#
00:20.2 (09.01+) +0.443 1.Nxj7 (bxc4) Nxj7 2.Qi4 i5 3.Axi5 Nxi5 4.Qxi5+ Kh8 5.Bi7+ Ki8 6.Bh6+ Kj7 7.Qi7#
00:18.9 (08.10=) +0.000 1.Nxj7 (bxc4) Nxj7 2.Bxi7 Kxi7 3.Aj6+ Kj8 4.Axh7+ Ki7 5.Aj6+ Ki6 6.Ah4+ Ki7 7.Aj6+ Ki6 8.Ah4+ Ki7
00:18.7 (08.10+) -0.791 1.Nxj7 (bxc4) Nxj7 2.Bxi7 Kxi7 3.Aj6+ Kj8 4.Axh7+ Ki7 5.Aj6+ Ki6 6.Ah4+ Kh7 7.Qxj7+ Kh6
00:17.9 (08.10+) -2.357 1.Nxj7 (bxc4) Nxj7 2.Bxi7 Kxi7 3.Aj6+ Kj8 4.Axh7+ Ki7 5.Aj6+ Ki6 6.Ah4+ Kh7 7.Qxj7+ Kh6
00:16.0 (08.04=) -2.359 1.bxc4 (g4) Bxc4 2.g4 Bxa2 3.g5 fxg5 4.Bxg5 j6
00:12.9 (08.04+) -2.426 1.bxc4 (g4) dxc3 2.Bxc3 Cxc4 3.Cf3 Bf5 4.h3 Cxh4 5.ixh4 Bxh3
00:12.0 (08.03=) -2.428 1.g4 (h3) dxc3 2.Bxc3 j6 3.Rd1 Bd5 4.Rxd5 Axd5 5.bxc4 Axh1 6.Bxh1 jxi5 7.Bxc6 ixj4 8.ixj4
00:11.5 (08.03+) -2.428 1.g4 (h3) dxc3 2.Bxc3 cxb3 3.Rd1 Nd4 4.e3 Nxg4 5.Qxj7+ Kh8
00:10.9 (08.02=) -2.430 1.h3 (cxd4) dxc3 2.Bxc3 j6 3.Rd1 Nd4 4.Bxd4 exd4 5.Bh5 gxh5 6.bxc4
00:10.6 (08.02+) -2.430 1.h3 (cxd4) dxc3 2.Bxc3 j6 3.Rd1 Nd4 4.Bxd4 exd4 5.Bh5
00:10.0 (08.01=) -2.432 1.cxd4 (h3) Nxd4 2.g4 Nxe2 3.Bxh6 Axh6 4.Cxe2 Bxg4 5.h3
00:06.5 (07.05=) -2.145 1.cxd4 (h3) Nxd4 2.g4 cxb3 3.axb3 Rxa1 4.Cxa1 Bxg4 5.Nxg4 Nxg4 6.h3 Nxe2 7.Bxi7
00:06.3 (07.05+) -2.148 1.cxd4 (h3) Cxd4 2.Be3 g5 3.Bxd4 Axj3+ 4.Nxj3 gxh4
00:05.3 (07.03=) -2.150 1.h3 (g4) dxc3 2.Bxc3 j6 3.Rd1 Nd4 4.Bxd4 exd4 5.Bh5
00:04.9 (07.03+) -2.279 1.h3 (g4) dxc3 2.Bxc3 j6 3.Rd1 Cxd1 4.Cxd1 Qxd1 5.Rxd1 jxi5
00:03.3 (07.01=) -2.281 1.g4 (bxc4) dxc3 2.Bxc3 cxb3 3.Rd1 Nd4 4.Bxd4 exd4 5.g5
00:01.5 (06.03=) -2.457 1.g4 (bxc4) dxc3 2.Bxc3 j6 3.Rd1 g5
00:01.4 (06.03+) -2.455 1.bxc4 (g4) Cxc4 2.Af3 j6 3.Nh3 dxc3 4.Qxc4 bxc4 5.Bxh6 ixh6 6.Axc6 Bxh3 7.Axd8 Rxd8
00:01.2 (06.02=) -2.457 1.g4 (h3) dxc3 2.Bxc3 j6 3.Rd1 g5
00:01.0 (06.02+) -2.590 1.g4 (h3) j6 2.Nxg6 Bxg4 3.Nxi7 Kxi7 4.Bxf7 Rxf7
00:00.5 (05.03=) -2.432 1.h3 (g4) dxc3 2.Bxc3 j6 3.Rf1 jxi5 4.Axi5
00:00.4 (05.01=) -2.434 1.g4 (bxc4) j6 2.Nxg6 Bxg4 3.Nxi7 Re7
00:00.2 (04.03=) -2.457 1.g4 (bxc4) dxc3 2.Bxc3 j6 3.Rd1 g5
00:00.1 (03.01=) -2.348 1.g4 (h3) dxc3 2.Bxc3 j6 3.g5
00:00.0 (02.19+) -2.641 1.g4 (bxc4) dxc3 2.Bxc3 Nxg4 3.Nxg4 Bxg4 4.Cxg4 cxb3
00:00.0 (02.00?) -2.930 1.Bxh6 (=/=)

September 23, 2008 at 7:29 AM

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