Mate in 24

[Michael Diosi]

Hi,


You can use Auto-Turbo mode. This might oversee shorter mates if those parameters have higher values for KXP. There are some problems where this happens, I do not think this is the case here.

Michael
http://www.playwitharena.com

[Tom Barrister]

The solution was to change the search order to XPK. According to what I was able to read on the other forum, that searched first for a solution in which the defender's replies were limited (much as MaxMoves=1) does. Again, it took less than a second.

I would imagine that reading the English.txt file would be a good idea, since the parameters need to be understood in order to use this engine to its maximum advantage.

[F.Huber]

Have fun Yeah I know Chest solves this fast...

Hi Michael,

do you still have more new mate problems?

It's quite a long time since you've sent me any new mate problems from your WinChloe updates ...

Regards,
Franz

[Michael Diosi]

Hi Franz,


just too few long mates and most I have tried were already in your database. There are some long helpmates however, maybe I should send you those. Lots of stuff to do but I will do my best...


Michael
http://www.playwitharena.com

[F.Huber]

just too few long mates and most I have tried were already in your database. There are some long helpmates however, maybe I should send you those. Lots of stuff to do but I will do my best...

Ok Michael,

you can certainly remember that I'm not a big friend of self/help-mates, so don't waste any time with collecting such stuff for me.
I'm only interested in usual (longer) mates, but you're right: such mates are very hard to find anywhere in the last time.

Regards,
Franz

[Engin]

of course, mate solve programs are find it faster, because they dont use a huge eval function, only looking for mates.

you cant compare this with normal chess playing engines, because the evalution function need to much time to find this, and they dont find anytime the shortest solution of mate.

[peter]

8/8/p2B1R2/Pp2K3/1Pp3pp/2P3pq/4P1kp/7b w - - 0 1

Analysis by Ivanhoe-BetaWH_79_w32:

1.e4 Kg1 2.Lc5+ Kg2 3.Ld6
= (0.00) Tiefe: 6 00:00:00 0kN
...
1.e4 Kg1 2.Lc5+ Kg2 3.Ld6
= (0.00) Tiefe: 35 00:01:49 314mN
1.Lb8
= (0.08 !) Tiefe: 35 00:01:56 331mN
...
1.Lb8
+- (136.38 !) Tiefe: 35 00:01:56 332mN
1.Lb8
+- (205.08 !) Tiefe: 35 00:01:56 332mN
1.Lb8 Kg1 2.La7+ Kg2 3.e3 Kg1 4.e4+ Kg2 5.Kd4 Kg1 6.Kd5+ Kg2 7.Kc5 Kg1 8.Kc6+ Kg2 9.Kb6 Kg1 10.Kxa6+ Kg2 11.Kb6 Kg1 12.Kxb5+ Kg2 13.Kc5 Kg1 14.Kxc4+ Kg2 15.Kc5 Kg1 16.Kd5+ Kg2 17.Kd4 Kg1 18.Kd3+ Kg2 19.Ke3 Kg1 20.Ke2+ Kg2 21.Tb6 Kg1 22.Td6+ Kg2 23.Td4 Kg1 24.Td3+ Kg2 25.Te3 Kg1 26.Txg3#
+- (#26) Tiefe: 35 00:01:56 332mN
...
1.Lb8 Kg1 2.La7+ Kg2 3.e3 Kg1 4.e4+ Kg2 5.Kd4 Kg1 6.Kd5+ Kg2 7.Kc5 Kg1 8.Kc6+ Kg2 9.Kb6 Kg1 10.Kxa6+ Kg2 11.Kb6 Kg1 12.Kxb5+ Kg2 13.Kc5 Kg1 14.Kxc4+ Kg2 15.Kc5 Kg1 16.Kd5+ Kg2 17.Kd4 Kg1 18.Kd3+ Kg2 19.Ke3 Kg1 20.Ke2+ Kg2 21.Tb6 Kg1 22.Td6+ Kg2 23.Td4 Kg1 24.Td3+ Kg2 25.Te3 Kg1 26.Txg3#
+- (#26) Tiefe: 39 00:01:58 341mN
1.Lb8 Kg1 2.La7+ Kg2 3.e3 Kg1 4.e4+ Kg2 5.Kd4 Kg1 6.Kd5+ Kg2 7.Kc5 Kg1 8.Kc6+ Kg2 9.Kb6 Kg1 10.Kxa6+ Kg2 11.Kb6 Kg1 12.Kxb5+ Kg2 13.Kc5 Kg1 14.Kxc4+ Kg2 15.Kd4 Kg1 16.Kd3+ Kg2 17.Ke3 Kg1 18.Ke2+ Kg2 19.Tb6 Kg1 20.Td6+ Kg2 21.Td4 Kg1 22.Td3+ Kg2 23.Te3 Kg1 24.Txg3#
+- (#24) Tiefe: 40 00:02:01 354mN

2x3Ghz, 1024Mb hash.

[rabbits]

Franz : You may have done this already but I'll post this suggestion anyway. I typed in,-Chess long mates -into google and got some interesting long mates. There's is one that claims to be a mates in 292 moves. I'm posting the web page address.
Allan
http://www.chess.com/forum/view/more-pu ... ys-monster

[rabbits]

Whoops-that should read -a mate in 292 moves.

[mhalstern]

I was hoping Given enough time, Fritz32 would find the mate. No luck. After 13 hours, nothing at all.