Author: Heiner Marxen
Date: 09:34:36 01/30/01
Go up one level in this thread
On January 30, 2001 at 09:27:13, Enrique Irazoqui wrote:
>On January 30, 2001 at 08:47:44, leonid wrote:
>
>>Hi!
>>
>>If you like to solve forced mate, here is one position.
>>
>>[D]3r2k1/4Qpb1/p1p3pp/8/2P1b3/1P2P1P1/P4P1n/2R1K3 b - -
>>
>>Game played in Athens in 1968 between Kokkoris and Kovalek.
>>
>>Please, indicate your result.
>
>Analysis by DEEP FRITZ :
>
>1...Rd2--
> +- (1.50) Depth: 1/4 00:00:00
>1...Rd2-- 2.Kxd2
> +- (5.28) Depth: 1/5 00:00:00
>1...Nf3+!
> +- (2.59) Depth: 1/5 00:00:00
>1...Nf3+! 2.Kf1
> = (-0.13) Depth: 1/5 00:00:00
>1...Nf3+ 2.Kf1 Bd3+ 3.Kg2
> = (-0.06) Depth: 2/7 00:00:00
>1...Nf3+ 2.Kf1 Nh2+ 3.Ke1
> = (0.00) Depth: 3/11 00:00:00 1kN
>1...Nf3+ 2.Kf1 Rb8 3.Rd1 Be5
> ² (0.34) Depth: 4/13 00:00:00 3kN
>1...Nf3+ 2.Kf1 Nh2+ 3.Kg1 Nf3+ 4.Kf1 Nh2+ 5.Kg1 Nf3+ 6.Kf1 Nh2+ 7.Kg1
> = (0.00) Depth: 5/16 00:00:00 13kN
>1...Bc3+!
> -+ (-#7) Depth: 5/16 00:00:00 13kN
>1...Bc3+ 2.Rxc3 Nf3+ 3.Ke2 Rd2+ 4.Kf1 Rd1+
> -+ (-#7) Depth: 6/11 00:00:00 15kN
>
>(Irazoqui, Cadaqués 30.01.2001)
>
>>If you have some similar (mate found by human from international game) position,
>>please indicate it here.
>
>I found some, but they are also too easy.
>
>Enrique
>
>>Thanks,
>>Leonid.
Chest confirms that in 10.6 seconds. Here is the complete solution tree:
Bc3+ Rxc3 Nf3+ Ke2 Rd2+ Kf1 Rd1+ Kg2 Rg1+ Kh3 Bf5+ g4 Bxg4#
Ke2 Re1#
Kf1 Rd1+ Kg2 Rg1+ Kh3 Bf5+ g4 Bxg4#
Ke2 Re1#
Ke2 Bf3#
Heiner
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