Rybka or... Franz Huber's Chest UCI?

[swami]

Yeah It would make an interesting experiment.. but the problem is that nobody has any such test suites of long range checkmates. Perhaps there have some problems posted into CCC, but never enough to collect the set of challenging problems.

Hi swami,

here is a database (*.epd) with lots of mates in 2 up to mates in more than 100

http://www.drb.insel.de/~heiner/Chess/others/
or
http://www.geocities.com/fhub55/chess/ChestUCI_V51.zip

kind regards

Thank you. I haven't checked out these, so in the weekends I'll test Rybka, Popeye, Bright and Chest UCI on these test suite and see it for myself.

[swami]

Thanks, Jouni, I ain't kidding, I just overestimated Rybka. But have you tried Winfinder also?

[David Dahlem]

You are kidding Swaminathan are You!? Rybka is very weak in mate solving. Here's my old 40 position test (difficult):

b5nq/K2Npp2/2pp1Ppr/2pk4/Q1R2pB1/2P1b3/R2p4/n2r4 w - - bm #6;
6nr/3p1p1r/4P2b/1K1P3n/N1N1P3/1pBk1P1p/bR4P1/8 w - - bm #6;
2r2rk1/2q2p1p/p1p1nPpQ/3p4/4p1B1/8/PPP3PP/R4R1K w - - bm #6;
7n/2r4p/4RPp1/ppkpN3/brp1p3/B1N1P2B/3P3R/7K w - - bm #6;
q4rbr/2b3N1/ppR2p1p/Nn2kp1B/4p2n/PpP1R2P/1PQ3P1/2B3K1 w - - bm #6;
1q2kr2/rB2bbP1/3p1n2/1NpP2BN/P4P1p/1P2Q3/6PP/R3K2R w - - bm #6;
1N1K3Q/3ppPBp/3PP1p1/k1P4r/P1R3P1/3P4/p5bp/1n1Bb1nq w - - bm #6;
r1b2bn1/pNp1pr2/3p2p1/1B1Pk2p/4P3/2N5/PPP2PPP/R1BQK2R w KQ - bm #6;
r3kBbK/brnp4/Bn5Q/6pR/8/8/2R5/8 w q - bm #6;
5R2/2P2pK1/2P2P2/1Pp1BP1P/b6p/1p1RPB2/1p2NPn1/6rk w - - bm #6;
1b5R/2pp2rp/2nP2p1/n1N2pPk/rP2p2P/PR1P3K/B1P5/2B5 w - - bm #7;
k1n3q1/pr1P3p/pP2p1p1/P5p1/1P1P3n/3pp3/K5RB/3Q1R1B w - - bm #7;
4Q3/7K/8/3Pp3/1B2P3/6Pp/6pp/3B1Rbk w - - bm #7;
4r1k1/pp1b1ppp/3b1q2/8/8/1PPp3P/P4P2/RN3KNR b - - bm #7;
2rqrb1n/pb1Rp3/1p4pP/Q1ppk1B1/1n1p4/3P1RKB/P4N1P/8 w - - bm #7;
2b2B2/p4Rp1/2pR2P1/8/7P/1pNP3P/1P1Pp1rp/2K1k2N w - - bm #7;
1N5b/1K6/4B1p1/3N1prb/4P1k1/3R4/3Pp3/4B3 w - - bm #7;
nR2Q1b1/3p1N2/1ppB1pp1/PP3pp1/8/3k4/1Pp5/2K5 w - - bm #7;
8/7b/3R4/2NPN3/PpPP1R2/1Pp1Pp2/p4P1B/k1K5 w - - bm #7;
5R2/2ppB1p1/8/5pNp/5Nb1/3p3p/3P1P1k/R3K3 w Q - bm #7;
3r1r1k/1bq1bp1p/pn5B/1ppPPR2/P1p1B3/2P3P1/7P/R2Q2K1 w - - bm #8;
3b1n2/B3p3/2K1p1p1/4Pkpb/5pn1/2P2N1B/4PP2/6R1 w - - bm #8;
1b6/3p1Bnp/1p1p3k/3p3p/3Pp2P/1N2Np2/K4R2/8 w - - bm #8;
1R1nN3/K1pP1nr1/B1k2Np1/3b4/P4P2/ppPpp1P1/2R5/6r1 w - - bm #8;
r1b3kr/p2pn2p/p2N3B/2QP4/3P4/8/P1PK2PP/q5NR w - - bm #8;
3Q4/2p5/n3B3/2p2P2/PpN1P1p1/1P1Pp3/2Ppp3/bK1krn2 w - - bm #8;
8/8/1p1p1BNP/1p1p3P/1kqp1QRK/3p3P/3p1NBP/8 w - - bm #8;
r1b3k1/pp3r2/1qp1pP1Q/2b5/8/2P5/PPB1RPPP/R5K1 w - - bm #8;
5rk1/pprbbp2/2np3Q/4p1P1/4P3/2qBB3/P1P3P1/3R1R1K w - - bm #8;
8/PPPPPP2/7K/4rP2/8/6Pp/4Nprp/5Qnk w - - bm #8;
1Q6/1p1p4/1p1P2P1/5P1r/1PBbP3/PK1P2pp/2P1p3/knR1B3 w - - bm #9;
2r1k3/6pr/p1nBP3/1p3p1p/2q5/2P5/P1R4P/K2Q2R1 w - - bm #9;
3r3k/pp1bqB1p/2n2R2/4p3/3P3Q/P6P/1BP3P1/1K1R4 w - - bm #9;
6nr/p2rkp1n/1pQRq1pp/1N2P3/8/4BN1P/PPP2PP1/2K4R w - - bm #9;
n2r2k1/P2P1pp1/5r2/2B5/1P6/6Qp/5P1P/R4K2 w - - bm #9;
r1b2r1k/1pq2ppp/p2b1n1N/8/2B1p3/1P3Q2/PBP2PPP/R4R1K w - - bm #9;
r1bq1k1r/1p1pn1bp/3Q2p1/p5p1/2B5/4R3/PP3PPP/R5K1 w - - bm #9;
r4k2/pp1q1p1p/5r1N/2pp2Q1/8/1P1PP3/P2P2P1/5RK1 w - - bm #9;
rn3k1r/p3n1pp/2p2p2/4N3/2Np4/8/q4PPP/1R1QR1K1 w - - bm #9;
rnbq1r1k/pppp1p1p/3n1Pp1/6N1/2B2Q2/8/PB3PPP/R4K1R w - - bm #9;

Result 1 min/single CPU: Rybka 2, Naum 14, cyclone 16, bright 15!

How does Chest UCI score on this test?

Regards
Dave

Jouni

[Jouni]

I selected just test positions, which are difficult to Chest. So please don't test Chest in that And yes Franz there is no doubt, that Chest is the best mate solver. But AFAIK there is no 64b or mp version so far.

Jouni