Houdini finds mate where R4 crashes and SF sees a draw.
Moderators: hgm, Rebel, chrisw
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Houdini finds mate where R4 crashes and SF sees a draw.
[D] 1K1n2q1/1p4pR/1prPPpPn/1RB1p1rP/8/1B2p3/2p2b2/1k2N3 w - - 0 1
-
Quicksort
Re: Houdini finds mate where R4 crashes and SF sees a draw.
OK, Louis. I should have posted the position. Too happy...Robert rules.
-
tmokonen
- Posts: 1296
- Joined: Sun Mar 12, 2006 6:46 pm
- Location: Kelowna
- Full name: Tony Mokonen
Re: Houdini finds mate where R4 crashes and SF sees a draw.
Many different versions of Fruit and Toga also crash and burn when given this position.
-
Dirt
- Posts: 2851
- Joined: Wed Mar 08, 2006 10:01 pm
- Location: Irvine, CA, USA
Re: Houdini finds mate where R4 crashes and SF sees a draw.
I had to follow Houdini's line for 31 plies, until the knight on h6 was taken and the king moved to e1, before Stockfish 2.0 saw an advantage for white. Crazy position.zullil wrote:[D] 1K1n2q1/1p4pR/1prPPpPn/1RB1p1rP/8/1B2p3/2p2b2/1k2N3 w - - 0 1
-
Albert Silver
- Posts: 3019
- Joined: Wed Mar 08, 2006 9:57 pm
- Location: Rio de Janeiro, Brazil
Re: Houdini finds mate where R4 crashes and SF sees a draw.
Doesn't crash here. Just says mate in 75 after 36 seconds.Quicksort wrote:http://rybkaforum.net/cgi-bin/rybkaforu ... ?tid=20873
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Ba3+ Kd2[] 5.Bb4+[] Kc1[] 6.Ba3+ Kd2[] 7.Bb4+[] Kc1[] 8.Ba3+ Kd2[] 9.Bb4+[] Kc1[] 10.Ba3+ Kd2[] 11.Bb4+[] Kc1[] 12.Ba3+ Kd2[] 13.Bb4+[] Kc1[] 14.Ba3+ Kd2[] 15.Bb4+[] Kc1[] 16.Ba3+
+- (12.67 ++) Depth: 13 00:00:10 1602kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+ exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (14.74) Depth: 13 00:00:31 4732kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+ exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 14 00:00:36 5465kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+[] exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 15 00:00:42 6047kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+[] exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 16 00:00:52 8024kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+[] exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 17 00:01:10 12731kN
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."
-
Mincho Georgiev
- Posts: 454
- Joined: Sat Apr 04, 2009 6:44 pm
- Location: Bulgaria
Re: Houdini finds mate where R4 crashes and SF sees a draw.
Awesome position, Louis, thanks for sharing it!
This one can show (as in my case) how improperly handled triple repetition detection can mix up the 'go-further' search for a particular position.
I have to reconsider it in my implementation helping myself with positions like this one. I think that a lot of engines will suffer too with it.
This one can show (as in my case) how improperly handled triple repetition detection can mix up the 'go-further' search for a particular position.
I have to reconsider it in my implementation helping myself with positions like this one. I think that a lot of engines will suffer too with it.
-
Paloma
- Posts: 1167
- Joined: Thu Dec 25, 2008 9:07 pm
- Full name: Herbert L
-
Damir
- Posts: 2801
- Joined: Mon Feb 11, 2008 3:53 pm
- Location: Denmark
- Full name: Damir Desevac
Re: Houdini finds mate where R4 crashes and SF sees a draw.
Albert Silver wrote:Doesn't crash here. Just says mate in 75 after 36 seconds.Quicksort wrote:http://rybkaforum.net/cgi-bin/rybkaforu ... ?tid=20873
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Ba3+ Kd2[] 5.Bb4+[] Kc1[] 6.Ba3+ Kd2[] 7.Bb4+[] Kc1[] 8.Ba3+ Kd2[] 9.Bb4+[] Kc1[] 10.Ba3+ Kd2[] 11.Bb4+[] Kc1[] 12.Ba3+ Kd2[] 13.Bb4+[] Kc1[] 14.Ba3+ Kd2[] 15.Bb4+[] Kc1[] 16.Ba3+
+- (12.67 ++) Depth: 13 00:00:10 1602kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+ exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (14.74) Depth: 13 00:00:31 4732kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+ exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 14 00:00:36 5465kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+[] exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 15 00:00:42 6047kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+[] exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 16 00:00:52 8024kN
1.Bc4+ Kc1[] 2.Ba3+[] Kd2[] 3.Bb4+[] Kc1[] 4.Nd3+[] Kd1[] 5.Nxf2+[] exf2[] 6.Rd5+[] Kc1[] 7.Ba3+[] Kb1[] 8.Rb5+[] Ka1[] 9.Bb2+[] Kb1[] 10.Bd4+[] Kc1[] 11.Be3+[] Kd1 12.Rd5+[] Ke1 13.Bd2+[] Kd1 14.Bxg5+[] Ke1 15.Bd2+[] Kd1 16.Bb4+[]
+- (#75) Depth: 17 00:01:10 12731kN
Does not crash ?? Why don't you show the name of the engine that has
been used ? It might as well be any.
Hmm let's see some people here posted a position where Rybka crashes.
And all you did was post analysis which shows no engine name...