Author: Eelco de Groot
Date: 21:34:42 07/25/05
Go up one level in this thread
On July 25, 2005 at 22:35:56, Terry McCracken wrote:
>A position taken from a G/2 I played earlier today with a pretty finish.
>
>[D]2r2rk1/3R2pp/p5n1/1pp1Pp2/5P2/2B2Q2/qPP3PP/3R2K1 w
>
>For those who want to solve it without a computer, I'll not give the killer
>move:)
>
>Terry
Nice one , Terry! I would have played 1.e6, on the grounds of a variation like
1..Rf6 (what else?) 2.Bxf6 gxf6 3.Qh5 and that looks like a sure win. But I'm
terrible at combo's so probably there are 3.78 holes in this. But in a human
game it might still work!
My PC with Pro Deo has some trouble coming up with the "ulti-mate", shortest
mate variation right now, Pro Deo 1.1 Vulcan {9i9k} needs 3 minute 14 seconds
for a mate in nine, but another version later sees mate in eight moves:
Pro Deo 1.1 Vulcan {9i9k} Athlon 3200+ 200 Mb HT
00:00:00.2 5,07 4 12900 Qb7 Rfe8 Rxg7+ Kf8 Rxh7
00:00:00.2 5,07 5 18439 Qb7 Rfe8 Rxg7+ Kf8 Rxh7 Nxf4
00:00:00.2 5,51 6 69643 Qb7 Rfe8 b3 Kh8 Rxg7 Ne7 Rxe7
00:00:00.3 5,51 6 108856 e6
00:00:00.4 7,54 6 192495 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6
00:00:00.4 7,51 7 255448 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 c3
00:00:00.9 7,51 8 812359 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 c3
00:00:02.5 7,59 9 2613934 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 Qe8 a5 R1d6
00:00:03.4 7,59 9 3634397 Qb7
00:00:03.6 7,63 9 3962235 Qb7 Rf7 Qxc8+ Nf8 Rd8 c4 Qe6
00:00:06.5 7,63 9 7568578 Rxg7+
00:00:19.6 7,63 9 23806738 Rxg7+
00:03:14.9 Mate in 9 9 254588721 Rxg7+ Kh8 Qb7 Rf7 Rxf7 Kg8 Qxc8+ Kxf7 Qxf5+
Ke8 Qd7+ Kf8 Qd8+ Kf7 Qf6+
00:05:26.8 Mate in 9 10 428809921 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kf8 Qxc8+ Kg7 Qd7+
Kh6 Bxf6 Qb3 Bg5+ Kh5 Qxh7+
00:05:29.6 Mate in 9 11 433437163 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kf8 Qxc8+
00:05:32.5 Mate in 9 12 438318375 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kf8 Qxc8+
00:05:52.2 Mate in 9 13 470090615 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kf8 Qxc8+ Kg7 Qd7+
00:06:24.6 Mate in 9 14 521298395 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kf8 Qxc8+ Kg7 Qd7+
Kh6 Bxf6 Qb3 Bg5+ Kh5 Qxh7+
00:07:57.1 Mate in 9 15 659963910 Rxg7+ Kxg7 e6+
All material at 95 version:
00:00:00.2 4,21 4 10763 Qb7
00:00:00.2 5,15 4 12081 Qb7 Rfe8 Rxg7+ Kf8 Rxh7
00:00:00.2 5,15 5 17580 Qb7 Rfe8 Rxg7+ Kf8 Rxh7 Nxf4
00:00:00.2 5,70 6 90653 Qb7 Rfe8 b3 Kh8 Rxg7 Ne7 Rxe7
00:00:00.3 5,70 6 114818 e6
00:00:00.3 7,82 6 191295 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6
00:00:00.4 7,79 7 255505 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 c3
00:00:00.9 7,79 8 899343 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 c3
00:00:01.8 7,87 9 1903868 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 Qe8 a5 R1d6
00:00:02.7 7,87 9 2944497 Qb7
00:00:07.5 7,87 9 1903868 e6 Rf6 Qb7 Qxe6 Qxc8+ Nf8 Bxf6 Qxf6 Qe8 a5 R1d6
00:00:19.6 9,76 10 23592261 e6 Rf6 b3 Qxc2 Bxf6
00:00:24.4 9,76 10 29195489 Rxg7+
00:00:57.7 9,76 10 69366556 Rxg7+
00:09:40.5 Mate in 8 10 764847639 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kh6 Bxf6
00:09:41.7 Mate in 8 11 766802399 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kh6 Bxf6 Qb3 cxb3 Ne7
00:09:43.7 Mate in 8 12 770145203 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kh6 Bxf6 Qb3 cxb3 Ne7
00:09:53.0 Mate in 8 13 785562767 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kh6 Bxf6 Qb3 cxb3 Ne7
00:10:05.4 Mate in 8 14 806106399 Rxg7+ Kxg7 e6+ Rf6 Qb7+ Kh6 Bxf6 Qb3 cxb3 Ne7
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