Crystal solves a 74 mover ... in 11 seconds

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jhellis3
Posts: 401
Joined: Fri Aug 16, 2013 10:36 pm

Re: Crystal solves a 74 mover ... in 11 seconds

Post by jhellis3 » Wed Nov 20, 2019 4:49 pm

I can confirm the latest version of Crystal no longer holds on to the mate score. This is likely due to some underlying changes in upstream stockfish which have been merged. I'll investigate and see what I can do...

lech
Posts: 1060
Joined: Sun Feb 14, 2010 9:02 pm

Re: Crystal solves a 74 mover ... in 11 seconds

Post by lech » Sun Dec 01, 2019 6:11 pm

Jouni wrote:
Tue Nov 19, 2019 8:38 pm

Analysis by Crystal 270819 64 BMI2:

1.Kh2 Bg4 2.Kg1 Bh5 3.Kf1 Bg4 4.Ke1 Bh5 5.Kd1 Bg4 6.Kc1 Bh5 7.Kb1 Bg4 8.Ka1 Bh5 9.Ka2 Bg4 10.Kb1 Bh5 11.Kc1 Bg4 12.Kd1 Bh5 13.Ke1 Bg4 14.Kf1 Bh5 15.Kg1 Bg4 16.Kh2 Bh5 17.Kh3 c5 18.Kh2 Bg4 19.Kg1 Bh5 20.Kf1 Bg4 21.Ke1 Bh5 22.Kd1 Bg4 23.Kc1 Bh5 24.Kb1 Bg4 25.Ka1 Bh5 26.Ka2 Bg4 27.Kb1 Bh5 28.Kc1 Bg4 29.Kd1 Bh5 30.Ke1 Bg4 31.Kf1 Bh3+ 32.Kg1 Bg4 33.Kh2 Bh5 34.Kh3 c4 35.Kh2 Bg4 36.Kg1 Bh5 37.Kf1 Bg4 38.Ke1 Bh5 39.Kd1 Bg4 40.Kc1 Bh5 41.Kb1 Bg4 42.Ka1 Bh5 43.Ka2 Bg4 44.Kb1 Bh5 45.Kc1 Bg4 46.Kd1 Bh5 47.Ke1 Bg4 48.Kf1 Bh3+ 49.Kg1 Bg4 50.Kh2 Bh5 51.Kh3 g6 52.Kh2 Bg4 53.Kg1 Bh5 54.Kf1 Bg4 55.Ke1 Bh5 56.Kd1 Bg4 57.Kc1 Bh5 58.Kb1 Bg4 59.Ka2 Bh5 60.Ka1 Bg4 61.Kb1 Bh5 62.Kc1 Bg4 63.Kd1 Bh5 64.Ke1 Bg4 65.Kf1 Bh3+ 66.Kg1 Bg4 67.Kh2 Bh5 68.Kh3 g5 69.hxg5 Bg4+ 70.Kh2 Bh5 71.g6 Bg4 72.g7 Bxe6 73.Bxf3+ Bd5 74.Bxd5#
+- (#74) Depth: 34/147 00:00:11 91201kN

Really stunning, WOW and BRAVO!
I think that each engine is able to return the solution in a game: engine vs. engine in ONLY 1 milisecond per move much faster! :lol:
Maybe, I can't be friendly, but let me be useful.

jhellis3
Posts: 401
Joined: Fri Aug 16, 2013 10:36 pm

Re: Crystal solves a 74 mover ... in 11 seconds

Post by jhellis3 » Sun Dec 01, 2019 7:23 pm

Yeah.... no.

lech
Posts: 1060
Joined: Sun Feb 14, 2010 9:02 pm

Re: Crystal solves a 74 mover ... in 11 seconds

Post by lech » Tue Dec 03, 2019 9:02 am

lech wrote:
Sun Dec 01, 2019 6:11 pm
Jouni wrote:
Tue Nov 19, 2019 8:38 pm

Analysis by Crystal 270819 64 BMI2:

1.Kh2 Bg4 2.Kg1 Bh5 3.Kf1 Bg4 4.Ke1 Bh5 5.Kd1 Bg4 6.Kc1 Bh5 7.Kb1 Bg4 8.Ka1 Bh5 9.Ka2 Bg4 10.Kb1 Bh5 11.Kc1 Bg4 12.Kd1 Bh5 13.Ke1 Bg4 14.Kf1 Bh5 15.Kg1 Bg4 16.Kh2 Bh5 17.Kh3 c5 18.Kh2 Bg4 19.Kg1 Bh5 20.Kf1 Bg4 21.Ke1 Bh5 22.Kd1 Bg4 23.Kc1 Bh5 24.Kb1 Bg4 25.Ka1 Bh5 26.Ka2 Bg4 27.Kb1 Bh5 28.Kc1 Bg4 29.Kd1 Bh5 30.Ke1 Bg4 31.Kf1 Bh3+ 32.Kg1 Bg4 33.Kh2 Bh5 34.Kh3 c4 35.Kh2 Bg4 36.Kg1 Bh5 37.Kf1 Bg4 38.Ke1 Bh5 39.Kd1 Bg4 40.Kc1 Bh5 41.Kb1 Bg4 42.Ka1 Bh5 43.Ka2 Bg4 44.Kb1 Bh5 45.Kc1 Bg4 46.Kd1 Bh5 47.Ke1 Bg4 48.Kf1 Bh3+ 49.Kg1 Bg4 50.Kh2 Bh5 51.Kh3 g6 52.Kh2 Bg4 53.Kg1 Bh5 54.Kf1 Bg4 55.Ke1 Bh5 56.Kd1 Bg4 57.Kc1 Bh5 58.Kb1 Bg4 59.Ka2 Bh5 60.Ka1 Bg4 61.Kb1 Bh5 62.Kc1 Bg4 63.Kd1 Bh5 64.Ke1 Bg4 65.Kf1 Bh3+ 66.Kg1 Bg4 67.Kh2 Bh5 68.Kh3 g5 69.hxg5 Bg4+ 70.Kh2 Bh5 71.g6 Bg4 72.g7 Bxe6 73.Bxf3+ Bd5 74.Bxd5#
+- (#74) Depth: 34/147 00:00:11 91201kN

Really stunning, WOW and BRAVO!
I think that each engine is able to return the solution in a game: engine vs. engine in ONLY 1 milisecond per move much faster! :lol:
Exactly the same idea but much more difficult to solve, why?

Maybe, I can't be friendly, but let me be useful.

Jouni
Posts: 2024
Joined: Wed Mar 08, 2006 7:15 pm

Re: Crystal solves a 74 mover ... in 11 seconds

Post by Jouni » Tue Dec 03, 2019 12:31 pm

Another long one solved by Crystal:



1.Ka4 Kb8 2.Kb3 Ka8 3.Kb2 Kb8 4.Kc2 Ka8 5.Kd1 Kb8 6.Ke2 Ka8 7.Kf1 Kb8 8.Kg2 Ka8 9.Kg3 Kb8 10.Kh4 Ka8 11.Kg5 Kb8 12.Kf6 Ka8 13.Ke7 Kb8 14.Kd8 a5 15.bxa5 Ka8 16.Ke7 Kb8 17.Kf6 Ka8 18.Kg5 Kb8 19.Kh4 Ka8 20.Kh3 Kb8 21.Kg2 Ka8 22.Kf1 Kb8 23.Ke2 Ka8 24.Kd1 Kb8 25.Kc2 Ka8 26.Kb3 Kb8 27.Kb4 Ka8 28.Kc5 Kb8 29.Kxd4 Ka8 30.Ke3 Kb8 31.Ke2 Ka8 32.Kf1 Kb8 33.Kg2 Ka8 34.Kh3 Kb8 35.Kh4 Ka8 36.Kg5 Kb8 37.Kf6 Ka8 38.Ke7 Kb8 39.Kd8 d4 40.Ke7 Ka8 41.Kf7 Kb8 42.Kf6 Ka8 43.Kg5 Kb8 44.Kh4 Ka8 45.Kh3 Kb8 46.Kg2 Ka8 47.Kf1 Kb8 48.Ke2 Ka8 49.Kd2 Kb8 50.Kc2 Ka8 51.Kb3 Kb8 52.Kc4 Ka8 53.Kxd4 Kb8 54.Ke3 Ka8 55.Ke2 Kb8 56.Kf1 Ka8 57.Kg2 Kb8 58.Kh3 Ka8 59.Kh4 Kb8 60.d4 Ka8 61.Kg5 Kb8 62.Kf6 Ka8 63.Ke7 Kb8 64.Kd8 Ka8 65.a6 Kb8 66.a7+ Ka8 67.d5 exd5 68.Kxc8 d4 69.Kxd7 d3 70.e6 d2 71.e7 d1Q 72.e8Q#
+- (#72) Depth: 44/143 00:00:13 209mN
1.Ka4 Kb8 2.Kb3 Ka8 3.Kc2 Kb8 4.Kd1 Ka8 5.Ke2 Kb8 6.Kf1 Ka8 7.Kg2 Kb8 8.Kg1 Ka8 9.Kf1 Kb8 10.Kg2 Ka8 11.Kg3 Kb8 12.Kh4 Ka8 13.Kg5 Kb8 14.Kf6 Ka8 15.Ke7 Kb8 16.Kd8 a5 17.bxa5 Ka8 18.Ke7 Kb8 19.Kf6 Ka8 20.Kg5 Kb8 21.Kh4 Ka8 22.Kh3 Kb8 23.Kg2 Ka8 24.Kf1 Kb8 25.Ke2 Ka8 26.Kd1 Kb8 27.Kc2 Ka8 28.Kb3 Kb8 29.Kb4 Ka8 30.Kc5 Kb8 31.Kxd4 Ka8 32.Ke3 Kb8 33.Ke2 Ka8 34.Kf1 Kb8 35.Kg2 Ka8 36.Kh3 Kb8 37.Kh4 Ka8 38.Kg5 Kb8 39.Kf6 Ka8 40.Ke7 Kb8 41.Kd8 d4 42.Ke7 Ka8 43.Kf7 Kb8 44.Kf6 Ka8 45.Kg5 Kb8 46.Kh4 Ka8 47.Kh3 Kb8 48.Kg2 Ka8 49.Kf1 Kb8 50.Ke2 Ka8 51.Kd2 Kb8 52.Kc2 Ka8 53.Kb3 Kb8 54.Kc4 Ka8 55.Kxd4 Kb8 56.Ke3 Ka8 57.Ke2 Kb8 58.Kf1 Ka8 59.Kg2 Kb8 60.Kh3 Ka8 61.Kh4 Kb8 62.d4 Ka8 63.Kg5 Kb8 64.Kf6 Ka8 65.Ke7 Kb8 66.Kd8 Ka8 67.a6 Kb8 68.a7+ Ka8 69.d5 exd5 70.Kxc8 d4 71.Kxd7 d3 72.e6 d2 73.e7 d1Q 74.e8Q#
+- (#74) Depth: 45/147 00:00:15 244mN

Sadly shortest mate is not kept! If this is fixed Crystal will be in own class in mate solving.
Jouni

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