Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: If you like forced mate... and one/two/three/... in return

Author: Paul

Date: 06:35:30 01/30/01

Go up one level in this thread


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.
>
>If you have some similar (mate found by human from international game) position,
>please indicate it here.
>
>Thanks,
>Leonid.

Hi Leonid!

Mine finds a Mate in 7 in 0 seconds at ply 6:

00:00 BM7 06 1... Bc3+ 2. Rxc3 Nf3+ 3. Ke2 Rd2+ 4. Kf1 Rd1+ 5. Kg2 Rg1+ 6. Kh3
Bf5+ 7. g4 Bxg4x

I guess these are too easy for 'usual' chessprograms nowadays ... although they
are always beautiful for the human eye.

I just remembered the following position from the Hoogovens Tournament in my
country in 1995. It was a game between Cifuentes and Zviaginsev, and black
surprised everyone with a beautiful (series of) sacrifice(s). For me this is one
of the nicest games I've ever seen. Here it is:

[D]3rr1k1/1b1q1p1p/p2b1npB/2pP4/1p2n3/4N1P1/PPQ1NPBP/R2R2K1 b - -

The game proceeded like this:

1... Nxf2 2. Kxf2 Rxe3 3. Bxe3 Ng4+ 4. Kf3 Nxh2+ 5. Kf2 Ng4+ 6. Kf3 Qe6 7. Bf4
Re8 8. Qc4 Qe3+ 9. Bxe3 Rxe3+ 10. Kxg4 Bc8+ 11. Kg5 h6+ 12. Kxh6 Re5 0-1

Now, I don't think Nxf2 results in a mate in X with X<20 :) But you could try
various positions working from the end of the line backwards. So for example:

[D]4r1k1/1b3p1p/p2bq1p1/2pP4/1pQ2Bn1/5KP1/PP2N1B1/R2R4 b - -

is a mate in 6. Take one more move back and you get this:

[D]3r2k1/1b3p1p/p2bq1p1/2pP4/1p3Bn1/5KP1/PPQ1N1B1/R2R4 b - -

is a mate in <=9, I think. I was just now trying this position:

[D]3r2k1/1b1q1p1p/p2b2p1/2pP4/1p4n1/4BKP1/PPQ1N1B1/R2R4 b - -

This is after taking another move back, but I haven't found a mate yet.
Well, I did my best ... hope you like this, my friend!

Greetings from Amsterdam,
Paul



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.