Mat in 16

Discussion of anything and everything relating to chess playing software and machines.

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gleperlier
Posts: 1033
Joined: Sat Feb 04, 2012 10:03 pm

Mat in 16

Post by gleperlier »

Hello,

[D]1kr5/8/2R3pp/3KP3/6P1/8/8/8 w - - 0 81

White to play and Mat in 16 :wink:

Let's see if Rybka can find a mat in 12 :D

Cheers,

Gab
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Codesquid
Posts: 138
Joined: Tue Aug 23, 2011 10:25 pm
Location: Germany

Re: Mat in 16

Post by Codesquid »

I wonder, does finding the quickest mate even matter in this position? Barring a major blunder, the position is won.

Octochess finds Rxc8 after 4 seconds, with a score advantage of more than 9cp, slowly increasing with every additional ply. First mate score appears after around 3.5 minutes, with no more than 49 plies to mate.
nanos gigantium humeris insidentes
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gleperlier
Posts: 1033
Joined: Sat Feb 04, 2012 10:03 pm

Re: Mat in 16

Post by gleperlier »

Codesquid wrote:I wonder, does finding the quickest mate even matter in this position? Barring a major blunder, the position is won.

Octochess finds Rxc8 after 4 seconds, with a score advantage of more than 9cp, slowly increasing with every additional ply. First mate score appears after around 3.5 minutes, with no more than 49 plies to mate.
No you are right, I also don't think the quickest mate is not the very much important here. Anyway it's cool to play precisely :wink:

Gab
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Mat in 16

Post by zullil »

gleperlier wrote:Hello,

[D]1kr5/8/2R3pp/3KP3/6P1/8/8/8 w - - 0 81

White to play and Mat in 16 :wink:

Let's see if Rybka can find a mat in 12 :D

Cheers,

Gab
Critter-1.6a finds this (and nothing shorter, so far):

Code: Select all

35/54  01:58  778597K   6574K   +M16 Rxc8+ Kxc8 Ke6 h5 gxh5 gxh5 Kf7 Kc7 e6 Kd6 e7 Ke5 e8=Q+ Kf4 Qh8 h4 Qxh4+ Ke3 Ke6 Kd2 Kd5 Ke2 Kd4 Kf3 Kd3 Kg2 Ke3 Kg1 Kf3 Kf1 Qh1#
ZirconiumX
Posts: 1334
Joined: Sun Jul 17, 2011 11:14 am

Re: Mat in 16

Post by ZirconiumX »

I'll put FF 1.1 on it tomorrow as I am AFK ATM.

(due to be released come hell or hot water on September 5)

Matthew:out
Some believe in the almighty dollar.

I believe in the almighty printf statement.