Author: Vincent Lejeune
Date: 12:05:36 11/07/05
Go up one level in this thread
1 more, old and very very hard :
[d]8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - -
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This is what Hiarcs8 produced after an overnight analysis:
New game
8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1
Analysis by Hiarcs 8:
...
1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg8 4.Ke7 Nc6+ 5.Kd6 Nd8 6.Kxc5
-+ (-2.98) Depth: 8/29 00:00:04 778kN
1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg8 4.Bf5 Kf7 5.Kxc5 Ke7 6.Nc4
-+ (-3.02) Depth: 9/29 00:00:08 1423kN
1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg7 4.Nf5+ Kg6 5.Ne3+ Kf7 6.Nf5 h5
-+ (-3.02) Depth: 10/29 00:00:19 3339kN
1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg7 4.Nf5+ Kg6 5.Ne3+ Kf7 6.Nc4 Bd8 7.Ne5+ Kf6
8.Ng4+ Kg7
-+ (-3.13) Depth: 11/30 00:00:46 8237kN
1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Ba4 Ba5 5.Kxc5 Kg6 6.Bb5 Kf6
-+ (-2.97) Depth: 11/32 00:01:20 14141kN
1.Kc6 Ne6
-+ (-2.72) Depth: 12/33 00:01:58 20333kN, tb=3
1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Ba4 Ba5 5.Kxc5 Kg6 6.Kc4 Ndc6 7.Nd5 Ne5+ 8.Kb5
-+ (-2.62) Depth: 12/33 00:02:04 21450kN, tb=3
1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Bf3 Na6 5.Be2 Nb8 6.Bb5 Ba5 7.Kxc5 Kg6 8.Nc2
-+ (-2.63) Depth: 13/37 00:04:22 45676kN, tb=12
1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Bf3 Na6 5.Be2 c4+ 6.Kd5 Ba5 7.Kxc4 Nb8 8.Bg4
Kg6
-+ (-2.60) Depth: 14/41 00:09:46 101762kN, tb=195
1.d8Q Nf7+ 2.Ke7 Nxd8 3.Kxd8 Ba5+ 4.Kd7 Bc7 5.Nxe3 Bxg3 6.Nd5 Be5 7.Kc6 Kg6
8.Bc2+ Kg5 9.Kb5 Nb4 10.Nxb4
-+ (-2.59) Depth: 14/42 00:20:52 214470kN, tb=1238
1.d8Q Nf7+ 2.Ke7 Nxd8 3.Kxd8 Ba5+ 4.Kd7 Bc7 5.Nxe3 Bxg3 6.Bc2+ Kh8 7.Nd5 Nb4
8.Nxb4 cxb4 9.Ke6 Kg7 10.Kf5 h5
-+ (-2.52) Depth: 15/42 00:25:36 259117kN, tb=4086
1.d8Q Nf7+ 2.Ke7 Nxd8 3.Kxd8 Ba5+ 4.Kd7 Bc7 5.Nxe3 Bxg3 6.Nd5 Be5 7.Kc6 Bd4
8.Kb5 Nb8 9.Kc4 h5 10.Bf3 h4 11.Nxc3 Bxc3 12.Kxc3
-+ (-2.52) Depth: 16/46 00:57:12 580307kN, tb=15373
1.Nf6+ Kg7
-+ (-2.27) Depth: 16/47 01:22:08 834815kN, tb=19955
1.Nf6+ Kg7 2.Nh5+ Kg6 3.Bc2+ Kxh5 4.d8Q Kg4 5.Kc6 Nf3 6.Qg8+ Kh3 7.Qe6+ Kg2
8.Qxe3 Nd4+ 9.Kb7 Nxc2 10.Qe2+ Kxg3 11.Qxc2
± (1.30) Depth: 16/49 06:32:01 4294836396kN, tb=82936
(Celeron 1.2GHz, 512MB hash, 3, 4 and 5 piece EGTB's 20.10.2002)
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Hiarcs is great here!
With your post I figured out the solution. The beautiest line is:
1. Nf6+ Kg7 2. Nh5+ Kg6 3. Bc2+ Kxh5 4. d8=Q Nf7+ 5. Ke6 Nxd8+ 6. Kf5 e2 7.
Be4 e1=N 8. Bd5 c2 9. Bc4 c1=N 10. Bb5 Nc6 11. Bxc6 Nc7 12. Ba4 Ne2 13. Bd1
Nf3 14. Bxe2 c4 15. Bxf3# {Matt} 1-0
to prevent this mate, black has to avoid 4... nf7+ which looses (obviously) too.
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On November 07, 2005 at 12:00:19, Thorsten Czub wrote:
>solved in 2 minutes or 12 seconds.
>
>i would like to see positions solved in 1 h or 30 minutes.
>
>any ?
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