any UCI pure brute-force engines?

[Karol Majewski]

I tried it with my new idea (Sting-sf-48, hash 1024M, dual core) without some dirty "Monte Carlo" or "rule50" or "nullMove search disabled" or "tablebases". (time 5 second!)

5 seconds on dual core... wow. Looking forward to test Sting 4.8.

[ernest]

Sting-sf-48

Note that Sting-sf-47 also finds it (on my old dualcore) :

Analysis by Sting SF 4.7:
...
1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 f5 4.c5 Rxc5 5.Bxf5 Ra5 6.Be6 Kf6 7.Bb3 Rf5+ 8.Ke3 Ke7 9.Nh3 Kd6 10.Nf2 Rf8 11.Ba4 Ra8 12.Bb3 Re8+ 13.Kf4 Rf8+ 14.Ke3 b5 15.Bd1 Ra8 16.Bb3 Rc8 17.Ke4 Rf8 18.Ke3 Rf5 19.Nh3 Ke5 20.Ng1 Kf6 21.Nh3
-+ (-1.49) Depth: 36/54 00:20:57 2270mN
1.Bh5+
-+ (-1.41 !) Depth: 37 00:29:25 3235mN
...
1.Bh5+
+- (4.59 !) Depth: 37 00:31:23 3461mN

[ernest]

2nd run was even a bit faster:

Analysis by Sting SF 4.7:
...
1.Nxf2 Rxc7 2.Bd3+ Kg7 3.c4 h5 4.Nh3 Rd7 5.Ke3 Re7+ 6.Kd4 b6 7.a4 Rd7+ 8.Ke3 Kh6 9.Bc2 Re7+ 10.Kf3 Re1 11.Bf5 Rc1 12.Be6 f5 13.Bxf5 Rc3+ 14.Ke2 Rxc4 15.Bd7 Rc7 16.Bb5 Rc3 17.Bd7 Rg3 18.Nf2 Rg7 19.Bc6 Rc7 20.Bb5 Kg5
-+ (-1.45) Depth: 35/54 00:21:45 2340mN
1.Bh5+
-/+ (-1.37 !) Depth: 36 00:23:58 2575mN
...
1.Bh5+
+- (4.63 !) Depth: 36 00:24:44 2662mN
1.Bh5+ Kg7 2.Nxf2 Kh8 3.Ne6 b5 4.Kf5 Ra7 5.Kxf6 Ra3 6.Nf4 Rxa2 7.Ne4 Ra4 8.Kf5 b4 9.cxb4 Rxb4 10.Ng6+ Kg7 11.Nxh4 Kf8 12.Kf4 Rb1 13.Nf5 Rf1+ 14.Bf3 Kf7 15.Nd2 Ra1 16.Nxh6+ Ke6
+- (5.37) Depth: 36/60 00:52:37 5622mN
1.Bh5+
+- (5.49 !) Depth: 37 00:59:54 6384mN

[lech]

Thanks Ernest, it gives me some new possibilities.
There are many who can support Sting, here.

[carldaman]

Thanks Ernest, it gives me some new possibilities.
There are many who can support Sting, here.

Hi Marek,

Sting is a very interesting project and it would be even more worthwhile to the users if you were to choose a recent version of SF as the source base, instead of the old SF 2.1.1. Of course, it may complicate things a great deal and you may have your own reasons not to do so. It's all good either way

Regards,
CL