mcostalba wrote:tpoppins wrote:Or is this test supposed to be MultiPV=1-only?
Actually multi pv gives even more help to these already super strong engines, anyhow I have removed the position you found from the list and here is the final one (some of them are very difficult to find even with multi pv):
Code: Select all
rn1q1rk1/2pbb3/pn2p3/1p1pPpp1/3P4/1PNBBN2/P1P1Q1PP/R4R1K w - - bm Nxg5; id "arasan19.16"; c0 "Dann Corbit, CCC 2015";
r5n1/p1p1q2k/4b2p/3pB3/3PP1pP/8/PPPQ2P1/5RK1 w - - bm Qf4; id "arasan19.23"; c0 "Shulman-Marciano, Ubeda 1997";
rn1qr1k1/1p2bppp/p3p3/3pP3/P2P1B2/2RB1Q1P/1P3PP1/R5K1 w - - bm Bxh7+; id "arasan19.42"; c0 "Polugaevsky-Torre, London 1984";
1n3rk1/3rbppp/p2p4/4pP2/Ppq1P3/1N2B3/1PP3PP/R2Q1R1K w - - bm f6; id "arasan19.44"; c0 "Kuzmin-Groszpeter, Kusadasi 1990";
8/5p2/3p2p1/1bk4p/p2pBNnP/P5P1/1P3P2/4K3 b - - bm d3; id "arasan19.115"; c0 "Bondarevsky-Petrosian, Soviet ch-19 Moscow 1951";
8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - bm Nd3; id "arasan19.116"; c0 "Grandelius-Raznikov, EU Youth Chess Ch B18, Albena 2011";
3r1r1k/pp5p/4b1pb/6q1/3P4/4p1BP/PP2Q1PK/3RRB2 b - - bm Qxg3+; id "arasan19.137"; c0 "Apicella-Lautier, Clichy 2001";
r3k3/1p4p1/1Bb1Bp1p/P1p1bP1P/2Pp2P1/3P4/5K2/4R3 w - - bm g5; id "arasan19.154"; c0 "Nakamura-Giri, FIDE Grand Prix, London 2012";
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "arasan19.155"; c0 "Vescovi-Gschwendtner, Groningen op 1994 (Aemis Test Suite #30)";
r1bq1rk1/pp2bppp/1n2p3/3pP3/8/2RBBN2/PP2QPPP/2R3K1 w - - bm Bxh7+; id "arasan19.157"; c0 "Trent-Deslandes, Cap d'Agde CCAS op 2008";
r1b2rk1/1pq1nppp/pbn1p3/8/3N4/3BBN2/PPP1QPPP/3R1RK1 w - - bm Bxh7+; id "arasan19.159"; c0 "Leu-Muck, DDR-ch H137 corr 1973";
8/4bBpp/3p4/P6P/2PN2p1/3k1b2/P7/6K1 w - - bm h6; id "arasan19.188"; c0 "Timman, 1c Corus {m} 2008";
r1b3r1/5p1k/p1n2P1p/P1qpp1P1/1p1p4/3P2Q1/BPPB2P1/R4RK1 w - - bm Kf2; id "arasan19.179"; c0 "Efremov-Fischer, Danube/4 ICCF 2012";
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "arasan19.189"; c0 "Šachová skladba 2011-12, 1st Prize";
The last 2 are special, the last one perhaps or is not correct or is super hard, the one before the last:
r1b3r1/5p1k/p1n2P1p/P1qpp1P1/1p1p4/3P2Q1/BPPB2P1/R4RK1 w - -
Is the one I like most
Hi Marco,
latest SF 220916 finds solution Kf2 at depth 26
76: poorfish fav Marco
[d] r1b3r1/5p1k/p1n2P1p/P1qpp1P1/1p1p4/3P2Q1/BPPB2P1/R4RK1 w - - 0 1
Analysis by Stockfish 220916 64:
1.Bb3 Be6
+/= (0.65 --) Depth: 20/36 00:00:03 11489kN
1.Bb3 Be6 2.Rae1 Rg6 3.Ba4 Rc8 4.Rf2 Qxa5 5.Bxc6 Rxc6 6.Qxe5 Qc5 7.Rc1 a5 8.g3 Qd6 9.Qxd6 Rxd6 10.Rh2 Rc6
+/= (0.56) Depth: 20/36 00:00:03 13973kN
1.Bb3 Be6 2.Rae1 Rac8 3.Rf2 Rg6 4.Ba4 Qxa5 5.Bxc6 Rxc6 6.Qxe5 Qc5 7.Rc1 a5 8.g3 Qd6 9.Qxd6 Rxd6 10.Rh2 Rc6 11.Kg2 Kg8 12.Rxh6
+/= (0.53) Depth: 21/36 00:00:04 17276kN
1.Bb3
+/= (0.60 !) Depth: 22/37 00:00:04 21969kN
1.Bb3
+/= (0.68 !) Depth: 22/37 00:00:05 26091kN
1.Bb3 Be6
+/= (0.60 --) Depth: 22/37 00:00:05 27374kN
1.Bb3
+/= (0.69 !) Depth: 22/37 00:00:06 28475kN
1.Bb3 Rg6 2.Ba4 Be6 3.Rae1 Rc8 4.Bxc6 Rxc6 5.Rxe5 Qxa5 6.Qe1 Qb6 7.Bxb4 Qb8 8.c4 dxc4 9.Qe4 cxd3 10.Bd2 Rc2 11.Rxe6 fxe6 12.Qxd3 Rxb2 13.Bf4 Qf8 14.Qxd4
+/- (0.79) Depth: 22/37 00:00:06 32775kN
1.Bb3
+/- (0.87 !) Depth: 23/38 00:00:07 39815kN
1.Bb3
+/- (0.94 !) Depth: 23/38 00:00:08 43948kN
1.Bb3
+/- (1.05 !) Depth: 23/38 00:00:09 48458kN
1.Bb3
+/- (1.20 !) Depth: 23/38 00:00:09 50689kN
1.Bb3
+- (1.41 !) Depth: 23/38 00:00:10 54806kN
1.Bb3 Rg6
+/- (1.24 --) Depth: 23/47 00:00:10 55751kN
1.Bb3 Rg6 2.Kf2 e4 3.Bf4 Nxa5 4.Bd6 Qb5 5.Ba4 e3+ 6.Ke2 Rxg5 7.Bxb5 Rxg3 8.Bxg3 Bg4+ 9.Ke1 axb5 10.Bc7 Rc8 11.Rf4 h5 12.Bxa5 Rxc2 13.Bxb4 Rxg2 14.Kf1 Rxb2 15.Bc5 Rd2 16.Ke1
+/- (1.01) Depth: 23/47 00:00:10 56567kN
1.Bb3 Rg6
+/- (0.94 --) Depth: 24/47 00:00:11 60644kN
1.Bb3 Rg6
+/- (0.87 --) Depth: 24/47 00:00:11 63519kN
1.Bb3 Rg6
+/- (0.76 --) Depth: 24/47 00:00:12 68820kN
1.Bb3
+/- (0.85 !) Depth: 24/47 00:00:25 138mN
1.Bb3
+/- (1.06 !) Depth: 24/47 00:00:28 155mN
1.Bb3 Rg6 2.Kf2 e4 3.Bf4 e3+ 4.Ke2 Nxa5 5.Bd6 Qb5 6.Ba4 Rxg5 7.Bxb5 Rxg3 8.Bxg3 Bg4+ 9.Ke1 axb5 10.Rf4 h5 11.Kf1 Ra6 12.Be1 Kg6 13.Bxb4 Nc6 14.Rxa6 Nxb4 15.Ra1 Bf5 16.Ra5 Nxc2 17.Rxf5 Kxf5 18.Rxb5 Kxf6 19.Rxd5
+/- (1.16) Depth: 24/47 00:00:29 163mN
1.Bb3 Rg6
+/- (1.09 --) Depth: 25/47 00:00:30 168mN
1.Bb3 Rg6
+/- (1.02 --) Depth: 25/47 00:00:30 168mN
1.Bb3 Rg6
+/- (0.91 --) Depth: 25/47 00:00:31 169mN
1.Bb3
+/- (1.00 !) Depth: 25/47 00:00:31 171mN
1.Bb3 Rg6
+/- (0.87 --) Depth: 25/47 00:00:31 171mN
1.Bb3 Rg6 2.Rae1 Bd7 3.Rf2 Rag8 4.Ba4 Nb8 5.Bxd7 Nxd7 6.Qh3 Rd8 7.Qf3 Kg8 8.gxh6 Kh7 9.Qf5 Qxc2 10.Bxb4 Qc7 11.Be7 Rdg8 12.g4 Qxa5 13.Ref1 Qb5 14.Rg2 Nc5
+/= (0.70) Depth: 25/47 00:00:46 256mN
1.Bb3
+/- (0.77 !) Depth: 26/47 00:00:51 283mN
1.Bb3
+/- (0.84 !) Depth: 26/47 00:00:52 289mN
1.Kf2
+/- (0.95 !) Depth: 26/47 00:00:53 295mN
1.Kf2
+/- (1.10 !) Depth: 26/47 00:00:53 295mN
1.Kf2
+/- (1.31 !) Depth: 26/47 00:00:54 300mN
1.Kf2
+- (1.60 !) Depth: 26/47 00:00:55 307mN
1.Kf2
+- (1.97 !) Depth: 26/47 00:00:59 327mN
1.Kf2 Rg6
+- (1.67 --) Depth: 26/47 00:01:01 343mN
1.Kf2 Qxc2 2.Ke1 b3 3.Rh1 Rg6 4.Rh4 Nb4 5.Bb1 Qc5 6.Qh2 Qf8 7.Qxe5 Be6 8.Kf2 Qb8 9.Qxd4 Nc2 10.Bxc2 bxc2 11.Rc1 Qc7 12.Bf4 Qc6 13.Be3 Kg8 14.Rh5 Qc7 15.Qh4 Qe5 16.Rxh6 Qf5+ 17.Ke2 Rxh6 18.Qxh6 Qh7 19.Qxh7+ Kxh7 20.Rxc2 Rc8 21.Rd2 Kg6 22.b4 Bg4+ 23.Kf2
+- (1.75) Depth: 26/51 00:01:07 375mN
1.Kf2 Qxc2
+- (1.68 --) Depth: 27/51 00:01:08 383mN
1.Kf2
+- (1.75 !) Depth: 27/51 00:01:09 388mN
1.Kf2
+- (1.86 !) Depth: 27/51 00:01:14 419mN
1.Kf2
+- (2.01 !) Depth: 27/51 00:01:16 431mN
1.Kf2 Rg6 2.Rh1 Bf5 3.Bb3 Rh8 4.Rh4 Kg8 5.Rah1 e4 6.Kf1 e3 7.Be1 Nxa5 8.Bxd5 Nc6 9.Qf3 Bd7 10.Rxh6 Rhxh6 11.Rxh6 Rxg5 12.Rh5 Qxd5 13.Qxd5 Rxd5 14.Rxd5 Be8 15.Ke2 Kh7
+- (2.14) Depth: 27/56 00:01:23 472mN
1.Kf2
+- (2.21 !) Depth: 28/56 00:01:32 521mN
1.Kf2 Rg6 2.Rh1 Bf5 3.Bb3 Rh8 4.Rh4 e4 5.dxe4 dxe4 6.Bxf7 e3+ 7.Kf1 Qe5 8.Bxg6+ Kxg6 9.Qxe5 Nxe5 10.Bxb4 Bxc2 11.f7 Bd3+ 12.Kg1 Nxf7 13.Rxd4 Bb5 14.Re4 e2 15.gxh6 Kf5 16.Re7 Ng5 17.Rc1 Rxh6 18.Rc5+ Kf6 19.Rc8 Ne6
+- (2.18) Depth: 28/56 00:01:37 552mN
1.Kf2 Rg6
+- (2.11 --) Depth: 29/56 00:01:40 574mN
(Bram Mourik, AMD X6 1090T 3200 Mhz (Fritzmark 23,1 6x) 25.09.2016)