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Subject: Re: Black Wins this one..!

Author: Gian-Carlo Pascutto

Date: 08:24:08 04/02/02

Go up one level in this thread


On April 02, 2002 at 10:24:06, Art Basham wrote:

>Just found this one today...
>
>Black plays...Qh3..! and mates in about 10 moves..
>with only a rook and a knight left for the attack..!
>
>[D]1rq5/p3kp2/2Bp1p2/1P2p1r1/QP3n2/2P5/5PPP/R4RK1 b - -
>
>From the Aemis Test Suite...(100 diagrams)

2 seconds for the move, 4 minutes for the mate

New game
1rq5/p3kp2/2Bp1p2/1P2p1r1/QP3n2/2P5/5PPP/R4RK1 b - - 0 1

Analysis by Sjeng 12.11:

1...Qh3 2.Ba8
  =  (0.25)   Depth: 2   00:00:00
1...Qh3 2.Ba8
  =  (0.25)   Depth: 2   00:00:00
1...Qh3
  ±  (0.75)   Depth: 3/14   00:00:00
1...Qh3 2.g3 Ne2+ 3.Kh1 Nxc3 4.Qxa7+
  ±  (0.95)   Depth: 3/14   00:00:00
1...Qh3 2.g3 Ne2+ 3.Kh1 Nxc3 4.Qxa7+
  ±  (0.95)   Depth: 3/14   00:00:00
1...Qh3
  +-  (1.45)   Depth: 4/15   00:00:00
1...Qh3 2.Qxa7+ Kf8 3.Qxb8+ Kg7 4.Rad1 Rxg2+ 5.Bxg2 Qxg2#
  +-  (9.24)   Depth: 4/15   00:00:00
1...Ne2+ 2.Kh1 a6 3.Qxa6 Qxa6 4.bxa6 Nxc3 5.Rac1
  +-  (2.62)   Depth: 4/15   00:00:00
1...d5 2.Qxa7+ Kd8 3.g3 Ne2+ 4.Kh1 Nxc3 5.Qxf7
  +-  (2.34)   Depth: 4/15   00:00:00
1...d5 2.Qxa7+ Kd8 3.g3 Ne2+ 4.Kh1 Nxc3 5.Qxf7
  +-  (2.34)   Depth: 4/15   00:00:00
1...d5 2.Qxa7+ Kd8 3.g3 Ne2+ 4.Kh1 Nxc3 5.Qxf7
  +-  (2.34)   Depth: 5/17   00:00:00
1...Nxg2
  +-  (1.84)   Depth: 5/18   00:00:00
1...Nxg2 2.Qxa7+ Kd8 3.Kh1 Nf4 4.Qxf7
  +-  (1.88)   Depth: 5/18   00:00:00
1...Nxg2 2.Qxa7+ Kd8 3.Kh1 Nf4 4.Qxf7
  +-  (1.88)   Depth: 5/18   00:00:00
1...Nxg2 2.Qxa7+ Kd8 3.Kh1 Nf4 4.Qxf7
  +-  (1.88)   Depth: 5/18   00:00:00
1...Nxg2
  +-  (2.38)   Depth: 6/18   00:00:00  309kN
1...d5 2.Qxa7+ Kd8 3.g3 Ne2+ 4.Kh1 Nxc3 5.Qxf7
  +-  (2.34)   Depth: 6/22   00:00:01  666kN
1...Qh3
  ±  (1.38)   Depth: 6/23   00:00:02  1301kN
1...Qh3 2.Qxa7+ Kf8 3.Qxb8+ Kg7 4.Rfd1 Rxg2+ 5.Kf1 Rg3+ 6.Bg2 Qxg2+ 7.Ke1 Qg1+
8.Kd2 Qxf2+ 9.Kc1 Rxc3+ 10.Kb1
  ³  (-0.28)   Depth: 6/23   00:00:02  1682kN
1...Qh3 2.Qxa7+ Kf8 3.Qxb8+ Kg7 4.Rfd1 Rxg2+ 5.Kf1 Rg3+ 6.Bg2 Qxg2+ 7.Ke1 Qg1+
8.Kd2 Qxf2+ 9.Kc1 Rxc3+ 10.Kb1
  ³  (-0.28)   Depth: 6/23   00:00:02  1698kN
1...Qh3
  µ  (-0.78)   Depth: 7/26   00:00:03  2202kN
1...Qh3 2.Qxa7+ Kf8 3.Rfd1 Rxg2+ 4.Kf1 Rg3+ 5.Bg2 Qxg2+ 6.Ke1 Qe4+ 7.Qe3 Ng2+
8.Kd2 Nxe3 9.hxg3 Nxd1 10.Kxd1 Rxb5
  -+  (-10.27)   Depth: 7/26   00:00:16  10641kN
1...Qh3 2.Qxa7+ Kf8 3.Rfd1 Rxg2+ 4.Kf1 Rg3+ 5.Bg2 Qxg2+ 6.Ke1 Qe4+ 7.Qe3 Ng2+
8.Kd2 Nxe3 9.hxg3 Nxd1 10.Kxd1 Rxb5
  -+  (-10.27)   Depth: 7/30   00:00:19  11534kN
1...Qh3
  -+  (-10.77)   Depth: 8/31   00:00:36  21182kN
1...Qh3 2.Qxa7+ Kf8 3.Qxb8+ Kg7 4.Qf8+ Kxf8 5.Rfd1 Rxg2+ 6.Kf1 Rg3+ 7.Bg2 Qxg2+
8.Ke1 Qe4+ 9.Kd2 Qe2+ 10.Kc1 Rxc3+ 11.Kb1 Qc2#
  -+  (-#11)   Depth: 8/31   00:03:57  227415kN
1...Qh3 2.Qxa7+ Kf8 3.Qxb8+ Kg7 4.Qf8+ Kxf8 5.Rfd1 Rxg2+ 6.Kf1 Rg3+ 7.Bg2 Qxg2+
8.Ke1 Qe4+ 9.Kd2 Qe2+ 10.Kc1 Rxc3+ 11.Kb1 Qc2#
  -+  (-#11)   Depth: 8/32   00:04:03  231710kN

--
GCP



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