65 new test positions

[Dann Corbit]

There were 31 positions that at least one strong engine did not solve in 200 seconds:

Code: Select all

r1br2k1/ppp2q1p/nb3p2/6p1/2PN1B2/2P2B2/P1Q2PPP/3RR1K1 w - g6 bm Nc6; c0 "Shredder-Nimzo, IPCCC Paderborn 2000";id "Dart-New.012";
q4r1k/6bp/1Q1P4/p7/P3bp2/4nN2/1PP2RPP/R5K1 b - - bm Nxg2; c0 "Rybka 1.0beta-Toga II 1.4b5c";id "Dart-New.016";
r3k2r/1pp2pQp/p1n1p3/P2q4/2p2Pn1/6P1/1P1PP2P/RNB1KR2 b Qkq - bm Nxh2; c0 "Afifi-Beliavsky, Tunis izt 1985";id "Dart-New.020";
2r2b2/5pk1/p1Q1b1pp/4P3/1P1BR3/P1n2NNP/5PPK/2q5 w - - bm Qxc8; c0 "Bologan-Bronstein, Oslo 1994";id "Dart-New.021";
r3k1nr/ppq4p/1bn1Ppp1/5p2/2Bp3N/1Q6/PP1B2PP/2R2RK1 w kq - bm e7; c0 "arasan9.2";id "Dart-New.022";
r6k/pppn2rp/3p1b1q/3P1b2/1PP2p2/2NB1N1P/P4PPK/2RQ2R1 b - - bm Rxg2+; c0 "Chernin-Polgar, New York 1990";id "Dart-New.023";
1r3k2/2R5/pp3pb1/3B2pp/3KP3/5PP1/P7/8 w - - bm e5; c0 "arasan9.4";id "Dart-New.024";
3r1k2/2pq1np1/p2pQ3/1p1P1ppP/3P2N1/P7/1P3PP1/4R1K1 w - - bm Nf6; c0 "Grishuk-Kamsky, WCC 2005";id "Dart-New.025";
1qb2rk1/3p1pp1/1p6/1pbBp3/r5p1/3QB3/PPP2P1P/2KR2R1 w - - bm b3; c0 "Shirov-Zvjaginsev, Biel 1995";id "Dart-New.026";
r7/ppp3kp/2bn4/4qp2/2B1pR2/2P1Q2P/P5P1/5RK1 w - f6 bm Rxf5; c0 "Velimirovic-Romanishin, Odessa 1975";id "Dart-New.027";
8/4k2p/p1P5/1p2P3/2p5/P3K3/7P/8 w - - bm Ke4; c0 "Taborov-Vovk, Kiev 1993";id "Dart-New.029";
r2qr1k1/pp1nbppp/3p1n2/2pP2N1/2B2B2/3P4/PPP1Q1PP/4RRK1 w - - bm Nxf7; c0 "Volokitin-Kozul, Vidmar Mem. 2001";id "Dart-New.030";
4n2k/1bp3b1/p1q4p/1p2n3/5N2/2P3N1/PP1r1PP1/R1Q1R1K1 b - - bm Rxf2; c0 "Smirin-Beliavsky, USSR ch Odessa 1989";id "Dart-New.031";
4r1k1/5p1p/p1pb1nq1/1P4p1/3P4/1BPb1PP1/1P1N1Q1P/R1B3K1 b - - bm Re2; c0 "Kramnik-Leko, World Chess Chmp., Brissago (m/8) 2004";id "Dart-New.032";
8/8/p7/3np3/PkpbK3/1p5P/1P1R4/2R5 b - - bm c3; c0 "Nakamura-Shabalov, Philadelphia World op 2004";id "Dart-New.036";
k3rb1r/P1pp2pp/b1p5/4P2q/4QB1P/1N4P1/PP6/2R1K2R b K h3 bm d5; c0 "Timman-Karpov, London 1984";id "Dart-New.038";
1q3r1k/1p1bn1p1/pBrb3p/P2p4/2P1p3/7P/1P1N1PP1/2RQRBK1 b - - bm Rxb6; c0 "Geller-Uhlmann, Amsterdam 1970";id "Dart-New.039";
2rr3k/2qnbppp/p1n1p3/1p1pP3/3P1N2/1Q1BBP2/PP3P1P/1KR3R1 w - - bm Bxh7; c0 "Eljanov-Van Wely, Tch-RUS Sochi 2008";id "Dart-New.041";
1k6/p1pb1p2/1p3n1p/2bpR3/6PP/3B1P2/P7/4RK2 w - - bm Re7; c0 "arasan9.6";id "Dart-New.042";
5rk1/7p/3q2p1/1p1P3n/2p3Q1/4p1P1/1PB2b1P/R2R3K b - - bm Bxg3; c0 "Kasimdhzanov-Kasparov, Linares 2005";id "Dart-New.044";
rn1rb1k1/pq2bppp/4p3/2p1N3/4PQ2/1PB3P1/P4PBP/2R2RK1 w - - bm Ng4; c0 "Alekhine/Monosson - Stoltz/Reilly, Nice consult 1931";id "Dart-New.047";
1b2r1k1/pb2qp2/5npB/2r1n3/3NP3/P2B1N2/3Q1PPP/R2R2K1 b - - bm Bxe4; c0 "Acs-Areshenko, Bundesliga 0506 2005";id "Dart-New.048";
4n3/2p5/1p2r2P/p1p2R2/P1N1k3/1PP4K/8/8 w - - bm Re5+; c0 "Anand-Landa, Bundesliga 0506 2005";id "Dart-New.049";
1k6/p4p2/3Pp3/3b4/Bp6/8/PP1K1P2/8 w - - bm Kd3; c0 "Xu Jun-Nielsen, Istanbul olm 2000";id "Dart-New.051";
1rb1k2r/3nbp2/p3pp2/qp5p/2B1Q3/1PP1BN2/P4PPP/R3R1K1 w k - bm Bxe6; c0 "Sermek-Truta, Ljubljana op 1994";id "Dart-New.052";
5rk1/2p3pp/1b1p1r1q/1N1P4/2P3p1/1P1Q4/R4PPP/5RK1 b - - bm g3; c0 "Yifan Hou-Adams, Ruy Lopez Chess Festival Merida 2008";id "Dart-New.053";
r3k3/2qb1p2/p2ppprb/8/4PP2/PNN1Q2P/2PR3P/R6K b q f3 bm d5; c0 "arasan9.7";id "Dart-New.054";
r4bk1/2nq1ppn/3p3p/1p1PpN2/1P2N2P/2P2Q2/5PP1/2BR2K1 w - - bm Nexd6; c0 "Kasparov-Karpov, World Chmp (m/46) Moscow 1985;id "Dart-New.058";
r1r3k1/2P2qpp/8/3Q4/p3P3/1p5P/6P1/2R1R1K1 b - - bm b2 a3; c0 "Sadler-Krasenkow, Bundesliga 9899 1998";id "Dart-New.061";
2N5/2R2pp1/5r1p/k7/Pp6/1P4n1/1KP5/8 w - - bm c4; c0 "Bernardino-Ortiz Elias, Corr CADAP Zonal-15 Final 2002";id "Dart-New.063";
6k1/p2q2bp/1pnPp1p1/3rPp2/5B2/5Q1P/P3BPP1/2R3K1 w - - bm Qxd5; c0 "Nyberg-Bruederle, W-Cup10 sf01 corr 1998";id "Dart-New.065";

I analyzed those with Rybka at 20 minutes per position.
Here are those which defy solution so far (at least some of them appear to have alternate solutions):

Code: Select all

q4r1k/6bp/1Q1P4/p7/P3bp2/4nN2/1PP2RPP/R5K1 b - - bm Nxg2; c0 "Rybka 1.0beta-Toga II 1.4b5c";id "Dart-New.016";
2) Nxg2; c0 "Rybka 1.0b 
    Searching move: Ne3xg2
    Best move (Rybkav2.3.2a.w32): Be4xf3
    Not found in: 20:00
      5	00:01	       6.321	58.842	-0.50	Rf8b8 Qb6c5
      5	00:01	       8.617	62.580	-0.29	Be4xc2 d6d7 Qa8d8
      6	00:01	      21.797	67.842	-0.29	Be4xc2 d6d7 Qa8d8 Qb6d6
      7	00:01	      31.005	63.371	-0.45	Be4xc2 d6d7 Qa8d8 Qb6xd8 Rf8xd8 Ra1c1
      7	00:01	      46.253	64.439	-0.16	Rf8b8 Qb6c5 Ne3xg2 Nf3g5
      8	00:02	      68.490	64.107	-0.11	Rf8b8 Qb6c5 Ne3xg2 Kg1xg2 Rb8g8 Kg2f1
      9	00:02	     120.923	63.893	-0.12	Rf8b8 Qb6c5 Ne3xg2 Rf2xg2 Be4xf3 Rg2xg7 Kh8xg7 Qc5g5+ Kg7h8 Qg5e5+ Kh8g8 Qe5e6+ Kg8g7
      9	00:03	     142.133	64.657	 0.00	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Bd4xf2+ Rf1xf2 Rf8g8+ Kg1h1
     10	00:03	     175.402	64.935	+0.35	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Rf8d8 c2c4
     11	00:04	     206.936	64.565	+0.38	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Rf8d8 c2c4 Nd5e3
     12	00:08	     520.609	66.372	+0.61	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Rf8d8 d6d7 Nd5f6 Qb5f5 Nf6xd7
     13	00:11	     706.581	68.297	+0.62	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Rf8d8 d6d7 Nd5f6 Qb5f5 Nf6xd7 Qf5xf4 Qa8a7
     14	00:17	   1.163.810	71.013	+0.69	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Rf8d8 c2c4 Nd5e3 Rf1c1 Rd8xd6 Rc1e1
     15	00:25	   1.626.729	67.601	+0.66	Be4xf3 g2xf3 Ne3d5 Qb6b5 Bg7d4 Ra1f1 Rf8d8 c2c4 Nd5e3 Rf1c1 Rd8xd6 Rc1e1 Rd6b6
     16	00:54	   3.464.229	65.690	+0.52	Be4xf3 g2xf3 Rf8g8 Kg1h1 Ne3g4 Ra1d1 Ng4xf2+ Qb6xf2 Qa8c6 d6d7 Rg8d8 Qf2e2 Bg7xb2 Kh1g2
     17	01:41	   6.211.621	63.152	+0.61	Be4xf3 g2xf3 Rf8g8 Kg1h1 Ne3g4 Ra1d1 Ng4xf2+ Qb6xf2 Qa8c6 d6d7 Rg8d8 Qf2e2 Bg7xb2 Kh1g2
     18	03:12	  11.346.329	60.780	+0.59	Be4xf3 g2xf3 Rf8g8 Kg1h1 Ne3g4 Ra1d1 Bg7f6 Rd1d2 Ng4xf2+ Qb6xf2 Qa8c6 d6d7 Rg8d8 Qf2e2
     19	06:39	  23.171.836	59.505	+0.70	Be4xf3 g2xf3 Rf8g8 Kg1h1 Ne3g4 Ra1d1 Bg7f6 Rd1d2 Ng4xf2+ Qb6xf2 Qa8c6 d6d7 Rg8d8 Qf2e2
     20	11:11	  39.254.971	59.968	+0.75	Be4xf3 g2xf3 Rf8g8 Kg1h1 Ne3g4 Ra1d1 Bg7f6 Rd1d2 Ng4xf2+ Qb6xf2 Qa8c6 d6d7 Rg8d8 Qf2e2
   4/15/2008 9:27:09 PM, Time for this analysis: 00:20:01, Rated time: 30:54

1r3k2/2R5/pp3pb1/3B2pp/3KP3/5PP1/P7/8 w - - bm e5; c0 "arasan9.4";id "Dart-New.024";
7) e5; c0 "arasan9.4";i 
    Searching move: e4-e5
    Best move (Rybkav2.3.2a.w32): f3-f4
    Not found in: 20:00
      5	00:00	       1.455	1.489.920	 0.00	Rc7c6 Kf8g7
      6	00:00	       2.127	128.120	-0.11	Rc7c6 Kf8g7 Rc6c7+ Kg7h6
      6	00:00	       4.543	96.917	+0.21	f3f4 h5h4 f4f5
      7	00:01	       8.900	95.932	+0.29	f3f4 g5xf4 g3xf4 Bg6e8 e4e5
      8	00:01	      13.977	100.791	+0.34	f3f4 Bg6e8 e4e5 f6xe5+ f4xe5 Be8g6 Rc7a7
      9	00:01	      16.579	98.132	+0.35	f3f4 Bg6e8 e4e5 f6xe5+ f4xe5 Be8g6 e5e6 Rb8e8
     10	00:01	      24.884	90.358	+0.30	f3f4 Bg6e8 e4e5 f6xe5+ Kd4xe5 g5xf4 g3xf4 Rb8d8 Rc7b7 b6b5
     11	00:01	      41.025	89.382	+0.44	f3f4 Bg6e8 e4e5 f6xe5+ Kd4xe5 g5xf4 g3xf4 Rb8d8 Rc7h7 Be8g6 Rh7b7
     12	00:01	      65.455	91.191	+0.37	f3f4 Bg6e8 e4e5 f6xe5+ Kd4xe5 g5xf4 g3xf4 Rb8d8 Rc7h7 Be8g6 Rh7b7 Bg6d3
     13	00:02	     105.960	87.856	+0.56	f3f4 Bg6e8 e4e5 f6xe5+ Kd4xe5 g5xf4 g3xf4 Rb8d8 Rc7h7 Be8g6 Rh7b7 b6b5 f4f5
     14	00:02	     159.665	90.180	+0.56	f3f4 Bg6e8 e4e5 f6xe5+ Kd4xe5 g5xf4 g3xf4 Rb8d8 Rc7h7 Be8g6 Rh7b7 b6b5 f4f5 Bg6e8
     15	00:06	     453.584	90.610	+0.79	f3f4 Rb8d8 f4f5 Bg6e8 Rc7b7 Be8d7 Rb7xb6 Kf8e7 Rb6xa6 h5h4 g3g4 Bd7c8 Ra6b6
     16	00:08	     650.187	88.950	+0.97	f3f4 g5xf4 g3xf4 Bg6e8 e4e5 Rb8d8 e5e6 Rd8b8 Kd4e4 Be8g6+ f4f5 Bg6e8 e6e7+ Kf8g7
     17	00:13	   1.002.237	84.635	+1.58	f3f4 g5xf4 g3xf4 Bg6e8 f4f5 Rb8d8 Rc7h7 b6b5 e4e5 f6xe5+ Kd4xe5 Rd8xd5+ Ke5xd5 Be8f7+
     18	00:15	   1.154.024	84.030	+1.45	f3f4 g5xf4 g3xf4 Bg6e8 f4f5 Rb8d8 Rc7h7 b6b5 e4e5 f6xe5+ Kd4xe5 Rd8xd5+ Ke5xd5 Be8f7+
     19	00:24	   1.878.262	83.110	+1.47	f3f4 Rb8d8 f4f5 Bg6e8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 Rd7c7 e5xf6+ Ke7xf6 Rh8xe8 Kf6xf5
     20	00:27	   2.173.292	82.277	+1.49	f3f4 Rb8d8 f4f5 Bg6e8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 Rd7c7 e5xf6+ Ke7xf6 Rh8xe8 Kf6xf5
     21	00:43	   3.349.416	79.818	+1.53	f3f4 Rb8d8 f4f5 Bg6e8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 Rd7c7 e5xf6+ Ke7xf6 Rh8xe8 Kf6xf5
     22	01:57	   9.270.968	81.674	+1.89	f3f4 g5xf4 g3xf4 Bg6e8 f4f5 Rb8d8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 Rd7c7 e5xf6+ Ke7xf6
     23	02:29	  11.808.116	81.244	+1.87	f3f4 g5xf4 g3xf4 Bg6e8 f4f5 Rb8d8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 Rd7c7 e5xf6+ Ke7xf6
     24	05:03	  23.120.763	78.286	+2.16	f3f4 g5xf4 g3xf4 Bg6e8 f4f5 Rb8d8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 b6b5 e5xf6+ Ke7xf6
     25	11:34	  50.794.123	74.967	+2.27	f3f4 g5xf4 g3xf4 Rb8d8 f4f5 Bg6e8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 a6a5 e5xf6+ Ke7xf6
     26	14:03	  61.766.737	75.064	+2.21	f3f4 g5xf4 g3xf4 Rb8d8 f4f5 Bg6e8 Rc7h7 Rd8d7 Rh7h8+ Kf8e7 e4e5 a6a5 e5xf6+ Ke7xf6
   4/15/2008 11:07:19 PM, Time for this analysis: 00:20:01, Rated time: 1:15:56

4r1k1/5p1p/p1pb1nq1/1P4p1/3P4/1BPb1PP1/1P1N1Q1P/R1B3K1 b - - bm Re2; c0 "Kramnik-Leko, World Chess Chmp., Brissago (m/8) 2004";id "Dart-New.032";
14) Re2; c0 "Kramnik-Le 
    Searching move: Re8-e2
    Best move (Rybkav2.3.2a.w32): a6xb5
    Not found in: 20:00
      5	00:01	       3.511	56.176	-0.28	a6xb5 Nd2e4
      6	00:01	       5.466	58.917	-0.36	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f1
      7	00:01	       8.940	58.309	-0.34	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f1 Kg8g7
      8	00:01	      22.022	57.526	-0.19	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 c6c5 Ra1a7
      9	00:02	      70.509	56.319	-0.19	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 c6c5 Ra1a7 c5c4
     10	00:02	      88.924	56.001	-0.25	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 c6c5 Ra1a7 c5c4 Bb3c2
     11	00:03	     137.793	57.125	-0.29	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 c6c5 Ra1a7 c5c4 Bb3c2 g5g4
     12	00:06	     332.734	61.236	-0.32	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 c6c5 Ra1a7 c5c4 Bb3c2 g5g4 Qf3f1
     13	00:11	     681.025	63.663	-0.20	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e2 Kg8f8 Qe2f1 Kf8g7 Ra1a7 Re8e7
     14	00:16	     940.236	62.491	-0.21	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e2 Kg8f8 Qe2d1 Kf8g7 Ra1a6 Qg6f5 Qd1f1
     15	00:27	   1.610.256	61.891	-0.27	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e2 c6c5 Ra1a7 c5c4 Bb3c2 f7f5 Bc1e3
     16	00:57	   3.422.950	62.485	-0.33	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e2 Ne4f6 Qe2f1 Nf6e4 Ra1a7 Re8e7 Ra7xe7
     17	01:34	   5.621.246	61.665	-0.30	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e2 Ne4f6 Qe2f1 Nf6e4 Ra1a7 Re8e7 Ra7xe7
     18	06:08	  20.300.093	56.583	-0.28	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e3 Ne4f6 Qe3d2 Nf6e4 Qd2h6 c6c5 Qh6xg6+
     19	08:56	  31.042.069	59.357	-0.27	a6xb5 Nd2e4 Bd3xe4 f3xe4 Nf6xe4 Qf2f3 g5g4 Qf3e3 Kg8g7 Ra1a7 Re8e7 Ra7xe7 Bd6xe7 Qe3e2
     20	19:46	  70.374.009	60.784	-0.20	a6xb5 Bb3d1 b5b4 Nd2b3 b4xc3 b2xc3 Nf6d5 Bc1d2 Nd5b6 Kg1g2 Nb6c4 Bd2c1 Qg6f6 Ra1a2
   4/16/2008 1:27:33 AM, Time for this analysis: 00:20:01, Rated time: 2:10:03

r3k3/2qb1p2/p2ppprb/8/4PP2/PNN1Q2P/2PR3P/R6K b q f3 bm d5; c0 "arasan9.7";id "Dart-New.054";
27) d5; c0 "arasan9.7"; 
    Searching move: d6-d5
    Best move (Rybkav2.3.2a.w32): Ra8-c8
    Not found in: 20:00
      5	00:00	       2.436	77.952	+0.49	Ra8c8 Nc3e2
      6	00:01	       5.976	64.414	+0.75	Ra8c8 Nc3e2 f6f5
      7	00:01	      14.725	64.163	+0.88	Ra8c8 Nc3e2 f6f5 Ra1g1
      8	00:01	      30.988	63.336	+0.55	Ra8c8 Rd2d3 e6e5 Qe3f3 Bh6xf4
      9	00:01	      46.789	60.040	+0.77	Ra8c8 Rd2d3 e6e5 Qe3f3 Bh6xf4 Nb3d4
     10	00:01	      62.349	60.921	+0.78	Ra8c8 Rd2d3 e6e5 Qe3f3 Bh6xf4 Nb3d4 e5xd4 Nc3d5
     11	00:02	      98.281	61.290	+0.78	Ra8c8 Rd2d3 e6e5 Qe3f3 Bh6xf4 Nb3d4 e5xd4 Nc3d5 Qc7xc2
     12	00:04	     187.599	62.068	+0.82	Ra8c8 Rd2d3 e6e5 Qe3f3 Bh6xf4 Nb3d4 e5xd4 Nc3d5 Qc7xc2 Nd5xf4 Qc2b2
     13	00:06	     310.697	60.051	+0.63	Ra8c8 Rd2d3 e6e5 Qe3f3 Bh6xf4 Nb3d4 e5xd4 Nc3d5 Qc7xc2 Nd5xf4 Qc2b2 Ra1d1
     13	00:24	   1.594.992	69.177	+0.64	d6d5 Ra1f1 d5xe4 Rd2xd7 Ke8xd7 Qe3xe4 Qc7c6 Rf1d1+ Kd7c7 Qe4xc6+ Kc7xc6 Nb3d4+ Kc6c5 f4f5
     14	00:32	   2.117.115	69.302	+0.64	d6d5 Ra1f1 d5xe4 Rd2xd7 Ke8xd7 Qe3xe4 Qc7c6 Rf1d1+ Kd7c7 Qe4xc6+ Kc7xc6 Nb3d4+ Kc6c5 f4f5
     15	00:56	   3.885.018	71.098	+0.74	d6d5 Ra1f1 d5xe4 Rd2xd7 Qc7xd7 Qe3xe4 Ra8c8 f4f5 Rg6g7 Qe4f3 Bh6f4 f5xe6 Qd7xe6 Nb3d4
     16	01:18	   5.372.863	71.162	+0.74	d6d5 Ra1f1 d5xe4 Rd2xd7 Qc7xd7 Qe3xe4 Ra8c8 f4f5 Rg6g7 Qe4f3 Bh6f4 f5xe6 Qd7xe6 Nb3d4
     17	02:08	   8.730.574	70.100	+0.68	d6d5 Ra1f1 d5xe4 Rd2xd7 Qc7xd7 Qe3xe4 Ra8c8 f4f5 Rg6g7 Qe4f3 Bh6f4 f5xe6 Qd7xe6 Nb3d4
     17	03:35	  14.898.054	71.064	+1.06	Ra8c8 Rd2d3 d6d5 e4xd5 Bh6xf4 Qe3f2 Bf4e5 Nb3d4 Qc7c4 Qf2h4 Ke8f8 Ra1g1 Kf8g8 Rg1xg6+
     18	04:14	  17.562.102	70.814	+1.06	Ra8c8 Rd2d3 d6d5 e4xd5 Bh6xf4 Qe3f2 Bf4e5 Nb3d4 Qc7c4 Qf2h4 Ke8f8 Ra1g1 Kf8g8 Rg1xg6+
     19	05:37	  22.897.590	69.601	+0.97	Ra8c8 Rd2d3 d6d5 e4xd5 Bh6xf4 Qe3f2 Bf4e5 Nb3d4 Qc7c4 Qf2h4 Ke8f8 Ra1g1 Kf8g8 Rg1xg6+
     20	08:45	  35.356.616	69.077	+1.05	Ra8c8 Rd2d3 d6d5 e4xd5 Bh6xf4 Qe3f2 Bf4e5 Nb3d4 Qc7c4 Qf2h4 Ke8f8 Ra1g1 Kf8g8 Rg1xg6+
     21	14:09	  56.710.167	68.412	+1.04	Ra8c8 Rd2d3 d6d5 e4xd5 Bh6xf4 Qe3f2 Bf4e5 Nb3d4 Qc7c4 Qf2h4 Ke8f8 Ra1g1 Kf8g8 Rg1xg6+
   4/16/2008 5:48:00 AM, Time for this analysis: 00:20:01, Rated time: 2:49:05

2N5/2R2pp1/5r1p/k7/Pp6/1P4n1/1KP5/8 w - - bm c4; c0 "Bernardino-Ortiz Elias, Corr CADAP Zonal-15 Final 2002";id "Dart-New.063";
30) c4; c0 "Bernardino- 
    Searching move: c2-c4
    Best move (Rybkav2.3.2a.w32): Rc7-a7
    Not found in: 20:00
      5	00:00	       1.495	90.051	 0.00	Rc7a7+ Rf6a6 Ra7b7 Ra6c6
      6	00:00	       2.673	85.536	+0.34	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7e7
      7	00:00	       3.645	116.640	+0.30	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7e7 Ra6f6
      8	00:01	       5.323	86.519	+0.40	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7e7 Ra6f6 Re7e5+ Ka5a6 Nc8e7
      9	00:01	       9.065	97.711	+0.55	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7e7 Ra6f6 Re7e5+ Ka5a6 Nc8e7 Ka6b7
     10	00:01	      15.103	89.395	+0.45	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7e7 Ra6f6 Re7e5+ Ka5a6 Nc8e7 Ka6b7 Ne7d5
     11	00:01	      27.906	95.891	+0.44	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7e7 Ra6f6 Re7e5+ Ka5a6 Nc8e7 Ka6b7 Ne7d5 Rf6f7
     12	00:01	      60.930	92.707	+0.67	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7f3 Ra6c6 Nc8e7 Rc6e6 Ne7d5 Ng3e2 Rf3f7
     13	00:01	      80.140	95.422	+0.65	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7f3 Ra6c6 Nc8e7 Rc6e6 Ne7d5 Ng3e2 Rf3f7 Ne2d4
     14	00:02	     145.611	94.430	+0.74	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7f3 Ra6c6 Nc8e7 Rc6e6 Ne7d5 Ng3e2 Rf3f7 Ne2d4 Rf7a7+ Re6a6
     15	00:03	     208.691	95.615	+0.74	Rc7a7+ Rf6a6 Ra7xf7 g7g5 Rf7f3 Ra6c6 Nc8e7 Rc6e6 Ne7d5 Ng3e2 Rf3f7 Ne2d4 Rf7a7+ Re6a6
     16	00:10	     936.322	96.779	+0.81	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c3 Ra6a8 Nc8d6 b4xc3+ Kb2xc3 Ng3e2+ Kc3c4 Ka5b6 Rf7f6 g5g4
     17	00:17	   1.533.948	95.463	+0.96	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c3 Ra6a8 Nc8d6 b4xc3+ Kb2xc3 Ng3e2+ Kc3d3 Ne2f4+ Kd3c4 Ka5b6
     18	00:21	   1.881.520	95.954	+0.96	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c3 Ra6a8 Nc8d6 b4xc3+ Kb2xc3 Ng3e2+ Kc3d3 Ne2f4+ Kd3c4 Ka5b6
     19	00:54	   5.279.068	100.658	+0.82	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c3 Ra6a8 Nc8d6 b4xc3+ Kb2xc3 Ka5b6 Nd6c4+ Kb6c6 Rf7f6+ Kc6d5
     20	01:11	   7.062.341	101.922	+0.88	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c3 Ra6a8 Nc8d6 b4xc3+ Kb2xc3 Ka5b6 Nd6c4+ Kb6c6 Rf7f6+ Kc6d5
     21	03:55	  22.028.148	96.293	+1.99	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c4 g5g4 c4c5 Ra6c6 Rf7a7+ Rc6a6 Ra7c7 Ng3f5 Nc8b6 Ra6xb6
     22	04:14	  23.984.493	96.686	+1.61	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c4 g5g4 c4c5 Ra6c6 Rf7a7+ Rc6a6 Ra7c7 Ng3f5 Nc8b6 Ra6xb6
     23	04:55	  27.532.032	95.710	+1.99	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c4 g5g4 c4c5 Ra6c6 Rf7a7+ Rc6a6 Ra7c7 Ng3f5 Nc8b6 Ra6xb6
     24	06:00	  33.414.304	95.263	+1.97	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c4 g5g4 c4c5 Ra6c6 Rf7a7+ Rc6a6 Ra7c7 Ng3f5 Nc8b6 Ra6xb6
     25	14:17	  73.369.300	87.754	+2.23	Rc7a7+ Rf6a6 Ra7xf7 g7g5 c2c4 g5g4 c4c5 Ra6c6 Rf7a7+ Rc6a6 Ra7c7 Ng3f5 Nc8b6 Ra6xb6
   4/16/2008 6:48:07 AM, Time for this analysis: 00:20:01, Rated time: 3:24:02

[kgburcham]

Zappa Mexico II

q4r1k/6bp/1Q1P4/p7/P3bp2/4nN2/1PP2RPP/R5K1 b - - bm Nxg2

13/45 0:13 -0.88 1...Rg8 2.Ng5 Bf6 3.h4 Bxg2 4.Nf7+ Kg7 5.Ng5 Be4 6.Rxf4 Nd5 7.Qf2 Nxf4 8.Qxf4 Bxc2 9.Rf1 Bxg5 10.hxg5 (23.930.907) 1795
13/45 0:23 -1.27 1...Nxg2 2.Rxg2 Rg8 3.Ng5 Qd5 4.Rd2 Qxg5+ 5.Kf1 Bf6 6.d7 Qg6 7.d8Q Bxd8 8.Qxg6 hxg6 (44.402.094) 1868
14/47 0:31 -1.56 1...Nxg2 2.Rxg2 Rg8 3.d7 Bxf3 4.Rg5 Qd5 5.d8Q Qxd8 6.Qxd8 Rxd8 7.c3 Rd2 8.Re1 h6 9.Rxa5 Rg2+ 10.Kf1 Rxb2 11.Rf5 Rxh2 (59.539.070) 1899
15/49 0:45 -1.50 1...Nxg2 2.Rxg2 Rg8 3.d7 Bxf3 4.Rg5 Qd5 5.d8Q Qxd8 6.Qxd8 Rxd8 7.c3 Rd2 8.Re1 h6 9.Rxa5 Rg2+ 10.Kf1 Rxb2 11.Rf5 Bg2+ 12.Kg1 Bxc3 13.Re8+ Kg7 14.Re7+ (87.053.906) 1931
16/51 1:05 -1.50 1...Nxg2 2.Rxg2 Rg8 3.d7 Bxf3 4.Rg5 Qd5 5.d8Q Qxd8 6.Qxd8 Rxd8 7.c3 Rd2 8.Re1 h6 9.Rxa5 Rg2+ 10.Kf1 Rxb2 11.Rf5 Bg2+ 12.Kg1 Bxc3 13.Re8+ Kg7 14.Re7+ (128.744.059) 1976
17/53 2:39 -1.32 1...Nxg2 2.Rxg2 Rg8 3.d7 Bxf3 4.Rg5 Qd5 5.d8Q Qxd8 6.Qxd8 Rxd8 7.c3 Rd2 8.Re1 h6 9.Rf5 Rg2+ 10.Kf1 Rxb2 11.Rxf4 Bd5 12.Re8+ Kh7 13.Re7 h5 14.Rf2 Rb1+ (318.301.624) 2001
17/53 4:27 -1.32 1...Nxg2 2.Rxg2 Rg8 3.d7 Bxf3 4.Rg5 Qd5 5.d8Q Qxd8 6.Qxd8 Rxd8 7.c3 Rd2 8.Re1 h6 9.Rf5 Rg2+ 10.Kf1 Rxb2 11.Rxf4 Bd5 12.Re8+ Kh7 13.Re7 h5 14.Rf2 Rb1+ (538.862.708) 2015
18/55 8:48 -1.40 1...Nxg2 2.Rxg2 Rg8 3.d7 Bxf3 4.Rg5 Qd5 5.d8Q Qxd8 6.Qxd8 Rxd8 7.c3 Rd2 8.Re1 h6 9.Rf5 Rg2+ 10.Kf1 Rxb2 11.Rxf4 Bh5 12.h3 Bxc3 13.Re7 Kg8 14.Rc4 Kf8 (1.060.623.814) 2006
19/57 21:38 -1.80 1...Nxg2 2.Rxg2 Bxf3 3.Rxg7 Kxg7 4.Qd4+ Kg6 5.Re1 Qd5 6.Qxd5 Bxd5 7.Re5 Bc6 8.Rc5 Bxa4 9.Kf2 Rf6 10.Kf3 Bd7 11.Rc7 Rxd6 12.Kxf4 Kf6 13.Rc5 (2.571.317.585) 1980


4r1k1/5p1p/p1pb1nq1/1P4p1/3P4/1BPb1PP1/1P1N1Q1P/R1B3K1 b - -bm Re2

13/41 0:06 +0.52 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4 4.Qe2 Bb8 5.Ra6 Kg7 6.Qf3 b4 7.cxb4 Nxg3 8.Rxc6 (11.926.732) 1982
13/45 0:09 -0.63 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Kg1 g4 5.f4 Qf8 6.Nc4 Bxc4 7.a7 Bxb3 (20.314.993) 2063
14/47 0:24 -1.15 1...Re2 2.Qxe2 Bxe2 3.Bc4 axb5 4.Bxe2 Qc2 5.Kf2 c5 6.Nf1 cxd4 7.cxd4 (50.993.990) 2065
15/49 0:29 -1.32 1...Re2 2.Qxe2 Bxe2 3.Bc4 Bxc4 4.Nxc4 cxb5 5.Nxd6 h6 6.g4 Nxg4 7.Ne4 Qc6 8.Kg2 Nf6 9.Nxf6+ Qxf6 (61.183.957) 2101
16/51 0:50 -1.47 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Ke3 Bb5 5.c4 Nd5+ 6.cxd5 g4+ 7.f4 Qxh2 8.Bc4 Qxg3+ 9.Ke2 Bxc4+ 10.Nxc4 Qf3+ 11.Ke1 Bb4+ 12.Nd2 (108.300.145) 2142
17/53 1:56 -1.92 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Ke3 Bb5 5.Bc4 g4+ 6.Kd3 Qg6+ 7.Ke3 Bxc4 8.Nxc4 Bb8 9.Kf2 Qc2+ 10.Nd2 Ba7 11.fxg4 Nxg4+ (254.445.720) 2175
18/55 7:07 -2.59 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Ke3 Bb5 5.Bc4 g4+ 6.Kd3 Qg6+ 7.Ke3 Bxc4 8.Nxc4 Bb8 9.fxg4 Nxg4+ 10.Ke2 Qh5 11.Kd3 Qf5+ 12.Ke2 Qf2+ 13.Kd3 Qf1+ 14.Kd2 Qxc4 (916.128.192) 2143
19/57 35:02 -3.18 1...Re2 2.Qxe2 Bxe2 3.Bc4 Bxc4 4.Nxc4 g4 5.f4 cxb5 6.f5 Qxf5 7.Nxd6 Qe6 8.Bf4 Nd5 9.Be5 f6 10.Re1 fxe5 11.dxe5 Nb6 12.Re2 Nd7 (4.442.511.931) 2112
20/59 54:18 -3.61 1...Re2 2.Qxe2 Bxe2 3.Bc4 Bxc4 4.Nxc4 g4 5.f4 cxb5 6.f5 Qxf5 7.Nxd6 Qe6 8.Bf4 Nd5 9.Rf1 Nxf4 10.Rxf4 Qxd6 11.Rxg4+ Kf8 12.Re4 b4 13.cxb4 Qxb4 14.Re2 Qxd4+ (6.884.298.426) 2112
best move: Re8-e2 time: 58:19.032 min n/s: 2.150.523 nodes: 7.395.187.683




2N5/2R2pp1/5r1p/k7/Pp6/1P4n1/1KP5/8 w - - bm c4

17/47 0:31 +1.40 1.Ra7+ Ra6 2.Rxf7 g5 3.c3 Ra8 4.cxb4+ Kxb4 5.Rc7 Nf5 6.Rc4+ Ka5 7.Rc5+ Ka6 8.Rxf5 Rxc8 9.Rf6+ Kb7 10.Rxh6 Rg8 11.Rh3 g4 12.Rg3 Kc6 13.b4 Kd5 14.a5 (71.262.117) 2235
17/48 0:54 +1.81 1.c4 Rf2+ 2.Kb1 Rf1+ 3.Kc2 Rf2+ 4.Kd3 Rf3+ 5.Kd2 Ne4+ 6.Kc2 Rf6 7.Kd3 Nc3 8.Ra7+ Ra6 9.Rxf7 g6 10.c5 Rc6 11.Kd4 h5 (123.475.943) 2277
18/55 1:34 +2.57 1.c4 Ne4 2.c5 Rf2+ 3.Kc1 Rf6 4.Ne7 Nxc5 5.Rxc5+ Kb6 6.Rb5+ Ka7 7.Rxb4 h5 8.Kb2 Re6 9.Nc8+ Ka6 10.Rd4 Rc6 11.Nd6 (220.724.124) 2335
19/57 2:55 +3.15 1.c4 Ne4 2.c5 Rf2+ 3.Kc1 Rf6 4.Kc2 Re6 5.Kd3 f5 6.Nd6 Ka6 7.Nb5 Nxc5+ 8.Rxc5 Rf6 9.Nc7+ Ka7 10.Nd5 Rf7 11.Ra5+ Kb7 12.Rb5+ (413.093.012) 2357
20/59 4:31 +3.29 1.c4 Ne4 2.c5 Rf2+ 3.Kc1 Rf6 4.Kc2 h5 5.Ne7 Ka6 6.Nd5 Rf2+ 7.Kd3 Nxc5+ 8.Rxc5 h4 9.Nxb4+ Kb7 10.Rb5+ Kc8 11.Rh5 Rf4 12.Nd5 Rg4 13.a5 Kb7 14.b4 (655.735.628) 2419
21/61 11:39 +3.89 1.c4 Ne4 2.c5 Rf2+ 3.Kc1 Rf6 4.Kc2 h5 5.Kd3 Nc3 6.Ra7+ Ra6 7.Rxf7 g5 8.Nb6 Rxb6 9.cxb6 Kxb6 10.Rf6+ Kb7 11.Rf5 g4 12.Rxh5 g3 13.Rg5 Nd1 14.Rxg3 (1.668.108.321) 2383
22/63 14:46 +3.89 1.c4 Ne4 2.c5 Rf2+ 3.Kc1 Rf6 4.Kc2 h5 5.Kd3 Nc3 6.Ra7+ Ra6 7.Rxf7 g5 8.Nb6 Rxb6 9.cxb6 Kxb6 10.Rf6+ Kb7 11.Rf5 g4 12.Rxh5 g3 13.Rg5 Nd1 14.Rxg3 (2.134.423.383) 2407
23/65 42:09 +4.10 1.c4 Ne4 2.c5 Nc3 3.c6 Nxa4+ 4.bxa4 Rf2+ 5.Kb3 Rf3+ 6.Kc4 Rc3+ 7.Kd5 Kxa4 8.Ra7+ Kb3 9.Ne7 Rd3+ 10.Kc5 Rc3+ 11.Kb5 g5 12.c7 Rxc7 13.Rxc7 h5 14.Rc4 (6.146.488.905) 2430
best move: c2-c4 time: 68:03.953 min n/s: 2.670.969 nodes: 9.662.132.665

[jdart]

Following is Deep Shredder 10 output for some of the positions Rybka did not solve. The weird thing is, Shredder gets two of these in 0 seconds. The other two I think may actually be problematic - I think I took the Kramnik-Leko test out of the list after posting.

--Jon

Id: Rybka 1.0beta-Toga II 1.4b5c
Fen: q4r1k/6bp/1Q1P4/p7/P3bp2/4nN2/1PP2RPP/R5K1 b - - 0 1
Bm: Nxg2

no 1 0 -150 205 Bxf3
no 1 0 -150 226 Bxf3
no 1 0 -5 240 Bxc2
no 1 0 -5 247 Bxc2
yes 1 0 +153 309 Nxg2 Rxg2
yes 1 0 +153 317 Nxg2 Rxg2
yes 2 0 +153 339 Nxg2 Rxg2
yes 3 0 +153 446 Nxg2 Rxg2
yes 4 0 +153 1231 Nxg2 Rxg2
yes 5 0 +153 2412 Nxg2 Rxg2
yes 6 0 +153 6849 Nxg2 Rxg2
yes 7 10 +153 13140 Nxg2 Rxg2
yes 8 30 +153 27781 Nxg2 Rxg2
yes 9 30 +153 39159 Nxg2 Rxg2
yes 10 60 +153 64802 Nxg2 Rxg2
yes 11 140 +153 141343 Nxg2 Rxg2
yes 12 250 +153 262498 Nxg2 Rxg2
yes 13 690 +153 671427 Nxg2 Rxg2
yes 14 1380 +153 1373724 Nxg2 Rxg2
yes 15 6720 +153 6403038 Nxg2 Rxg2
yes 16 12500 +153 12060469 Nxg2 Rxg2
yes 17 21800 +153 21353455 Nxg2 Rxg2

Fen: 1r3k2/2R5/pp3pb1/3B2pp/3KP3/5PP1/P7/8 w - - 0 1
Bm: e5

no 1 0 -248 315 Rf7+
no 1 0 -673 336 Rf7+
no 1 0 -673 352 Rf7+
no 1 0 +26 363 a3
no 1 0 +26 375 a3
yes 1 0 +194 400 e5 fxe5+
yes 1 0 +194 414 e5 fxe5+
yes 2 0 +194 490 e5 fxe5+
yes 3 0 +194 584 e5 fxe5+
yes 4 0 +194 670 e5 fxe5+
yes 5 0 +194 836 e5 fxe5+
yes 6 0 +194 2548 e5 fxe5+
yes 7 20 +194 5646 e5 fxe5+
yes 8 20 +194 6237 e5 fxe5+
yes 9 20 +194 10786 e5 fxe5+
yes 10 20 +194 15970 e5 fxe5+
yes 11 20 +194 26745 e5 fxe5+
yes 12 30 +194 40895 e5 fxe5+
yes 13 50 +194 60731 e5 fxe5+
yes 14 60 +194 96204 e5 fxe5+
yes 15 80 +194 130284 e5 fxe5+
yes 16 120 +194 209429 e5 fxe5+
yes 17 200 +194 339885 e5 fxe5+
yes 18 340 +194 561462 e5 fxe5+
yes 19 670 +194 1053116 e5 fxe5+
yes 20 1110 +194 1661338 e5 fxe5+
yes 21 2950 +194 4331353 e5 fxe5+
yes 22 4720 +194 6902697 e5 fxe5+
yes 23 17410 +194 22448677 e5 fxe5+
yes 24 37140 +194 41877674 e5 fxe5+

Result: Success
Found in: 0 ms (00:00:00.000)

Fen: r3k3/2qb1p2/p2ppprb/8/4PP2/PNN1Q2P/2PR3P/R6K b q f3 0 1
Bm: d5

yes 1 0 +92 569 d5 Rf1
yes 2 0 +92 639 d5 Rf1
yes 3 0 +67 814 d5 Rf1
yes 3 0 +47 1036 d5 Ne2 dxe4 Qxe4
no 3 0 +49 1431 Rc8
no 3 0 +61 1886 Rc8 Rd3 d5
no 4 0 +36 5267 Rc8 Rd3
no 4 0 +26 5910 Rc8 Ne2 e5 Rad1
yes 4 0 +28 6811 d5
yes 4 0 +47 7472 d5 Ne2 Bb5 exd5
yes 5 20 +56 17722 d5 Rf1 Qc4 Rf3 Bf8 exd5
no 5 30 +57 23534 Qa7
no 5 30 +63 24170 Qa7 Qxa7 Rxa7 Rf1 Rc7 Rd3
no 6 50 +38 38901 Qa7 Qxa7
no 6 50 +38 42025 Qa7 Qxa7
yes 6 50 +39 46622 d5
yes 6 60 +42 50756 d5 Rf1 Qc4 Rf3 Bf8 exd5
yes 7 110 +42 90955 d5 Rf1 Qc4 Rf3 Bf8 exd5 Bxa3
no 7 110 +43 103343 Rc8
no 7 140 +58 121896 Rc8 Ne2 f5 Ng3 fxe4 Nxe4 Qc6 Rad1
no 8 280 +61 240864 Rc8 Rd3 Kf8 Rg1 Rxg1+ Kxg1 f5 exf5 e5 Qg3
no 8 310 +62 269873 Bxf4
no 8 330 +85 291987 Bxf4 Qxf4 Qxc3
no 9 410 +60 353566 Bxf4 Qxf4
no 9 420 +60 368867 Bxf4 Qxf4
no 9 470 +61 415573 Rc8
no 9 500 +61 433064 Rc8 Rd3
no 10 780 +84 682529 Rc8 Rd3 d5 Rf1 dxe4 Nxe4 Bc6 Nd4 Bd5
no 10 810 +85 714514 Bxf4
no 10 860 +86 755211 Bxf4 Qxf4 Qxc3 Rg1 Bc6 Rg3 Qe5 Qxe5 fxe5
Rxg6 fxg6
no 11 1080 +86 962701 Bxf4 Qxf4 Qxc3 Rg1 Bc6 Rg3 Qe5 Qxe5 fxe5
Rxg6 fxg6 Rxd6
no 12 1810 +111 1641783 Bxf4 Qxf4
no 12 2440 +128 2234576 Bxf4 Qxf4 Qxc3 Re1 e5 Qf2 f5
no 13 4450 +103 4236568 Bxf4 Qxf4
no 13 4800 +93 4665044 Bxf4 Nd5 Bxe3 Nxc7+ Ke7 Re2 Rc8 Nd5+ exd5
exd5 Kd8 Rxe3 Rxc2 Rg1 Rg5 Nd4 Rb2 Nc6+
Kc7 Nb4
yes 13 6450 +94 6103323 d5
yes 13 7670 +129 7178899 d5
yes 13 13190 +159 12001662 d5 Ne2 dxe4 Nc5 Bc6 Rg1 Rxg1+ Kxg1 f5 Qd4
e5 Qd6 Qxd6
yes 14 17340 +159 15759696 d5 Ne2 dxe4 Nc5 Bc6 Rg1 Rxg1+ Kxg1 f5 Qd4
e5 Qd6 Qxd6 Rxd6
yes 15 30770 +183 28163084 d5 Rf1 dxe4 Rxd7 Kxd7
yes 16 45450 +176 41486092 d5 Rf1 dxe4 Rxd7 Kxd7 Qxe4 Qc6 Rd1+ Kc7
Qxc6+ Kxc6 Nd4+ Kb7 f5 exf5 Nd5 Re8 Rb1+
Kc8
yes 17 55480 +151 50972893 d5 Rf1
yes 17 80780 +151 73138687 d5 Rf1
yes 18 155740 +176 139951037 d5 Rf1
yes 18 321190 +220 285448234 d5 Ne2 dxe4 Rad1 Bc6 Nbd4 Bb7 Nb3 f5 h4
Bd5 Nbd4 Bc4 Rg1 Rxg1+ Kxg1
yes 19 442050 +215 394025839 d5 Ne2 dxe4 Rad1 Bc6 Nbd4 Bb7 Nb3 f5 c4
Bc6
yes 20 669720 +194 604428276 d5 Ne2 dxe4 Rad1 Bc6 Nbd4 Bb7 Nb3 f5 c4
Bc6

Result: Success
Found in: 6450 ms (00:00:06.450)

[Allard Siemelink]

I think there is bug in all Arena version in EPD analysis with 'abort analysis'. It's not working as it should - but probably without abort
it's OK.

Jouni

Bright's results without 'abort analysis':

Code: Select all

Analyzing engine: bright-dev
17-04-2008 2:59:45 Level: 300 Seconds
  1) Rd3-g3             Rd3-g3  * 7 Seconds
  2) Bd1-g4             Bd1-g4  * 5 Seconds
  3) .. Bf6-h4          Bf6-h4  * 18 Seconds
  4) Ra1xa6             Ra1xa6  * 27 Seconds
  5) Nh4xg6             Nh4xg6  * 0 Seconds
  6) e5-e6              e5-e6   * 2 Seconds
  7) .. d5-d4           d5-d4   * 0 Seconds
  8) .. e3-e2           e3-e2   * 0 Seconds
  9) Qd2-h6             Qd2-h6  * 14 Seconds
 10) Rf3-f7             Rf3-f7  * 8 Seconds
 11) h5-h6              h5-h6   * 0 Seconds
 12) Nd4-c6             Bf4-e3   
 13) Qc4-g8             Qc4-g8  * 15 Seconds
 14) .. Be3-d4          Be3-d4  * 61 Seconds
 15) Be2xh5             Be2xh5  * 0 Seconds
 16) .. Ne3xg2          Ne3xg2  * 261 Seconds
 17) e4-e5              e4-e5   * 41 Seconds
 18) Nf3-g5             Nf3-g5  * 23 Seconds
 19) .. Ne6xg5          Ne6xg5  * 5 Seconds
 20) .. Ng4xh2          Ng4xh2  * 83 Seconds
 21) Qc6xc8             Qc6xc8  * 4 Seconds
 22) e6-e7              e6-e7   * 0 Seconds
 23) .. Rg7xg2          Rg7xg2  * 23 Seconds
 24) e4-e5              f3-f4    
 25) Ng4-f6             Ng4-f6  * 251 Seconds
 26) b2-b3              b2-b3   * 77 Seconds
 27) Rf4xf5             Rf4xf5  * 46 Seconds
 28) Rg4xg7             Rg4xg7  * 0 Seconds
 29) Ke3-e4             Ke3-d4   
 30) Ng5xf7             Ng5xf7  * 81 Seconds
 31) .. Rd2xf2          Rd2xf2  * 15 Seconds
 32) .. Re8-e2          Re8-e2  * 31 Seconds
 33) c4-c5              c4-c5   * 2 Seconds
 34) Rh1xh7             Rh1xh7  * 1 Second
 35) .. Kh6-h5          Kh6-h5  * 19 Seconds
 36) .. c4-c3           c4-c3   * 28 Seconds
 37) .. Ne6-f4          Ne6-f4  * 5 Seconds
 38) .. d7-d5           d7-d5   * 20 Seconds
 39) .. Rc6xb6          Rc6xb6  * 166 Seconds
 40) Qa4xa6(?)          c4-c5   * 0 Seconds
 41) Bd3xh7             Bd3xh7  * 2 Seconds
 42) Re5-e7             Re5-e7  * 8 Seconds
 43) .. f5-f4           f5-f4   * 35 Seconds
 44) .. Bf2xg3          Bf2xg3  * 4 Seconds
 45) .. Re8-e3          Re8-e3  * 3 Seconds
 46) Rh4xh6             Rh4xh6  * 19 Seconds
 47) Ne5-g4             Qf4-g4   
 48) .. Bb7xe4          Bb7xe4  * 108 Seconds
 49) Rf5-e5             Rf5-h5   
 50) g5xf6              g5xf6   * 4 Seconds
 51) Kd2-d3             Kd2-d3  * 262 Seconds
 52) Bc4xe6             Bc4xe6  * 12 Seconds
 53) .. g4-g3           Qh6-h5   
 54) .. d6-d5           Ra8-c8   
 55) Re1xe5             Re1xe5  * 44 Seconds
 56) e4xf5              e4xf5   * 9 Seconds
 57) .. Bc5xe3          Bc5xe3  * 0 Seconds
 58) Ne4xd6             Ne4xd6  * 0 Seconds
 59) Nf3-d4             Nf3-d4  * 16 Seconds
 60) .. f4-f3           f4-f3   * 0 Seconds
 61) .. b3-b2, a4-a3    b3-b2   * 17 Seconds
 62) .. Ne5-f3          Ne5-f3  * 7 Seconds
 63) c2-c4              c2-c4   * 41 Seconds
 64) .. Kg8-g7          Kg8-g7  * 0 Seconds
 65) Qf3xd5             Qf3xd5  * 2 Seconds
58 of 65 matching moves
17-04-2008 8:25:43, Total time: 5:25:58 Rated time: 1:07:12 = 4032 Seconds

Somehow it now missed position 29, which it does find if run separately:
[D]8/4k2p/p1P5/1p2P3/2p5/P3K3/7P/8 w - - 0 1

Code: Select all

 [21/54]   53.391   91403k     176  Ke3d4 h7h5 h2h3 h5h4 a3a4 b5b4 Kd4xc4 a6a5 Kc4d4 Ke7e6 Kd4e4 Ke6e7 Ke4d3 Ke7e6 Kd3d4 Ke6e7 Kd4c4 Ke7e6 Kc4b3 Ke6e7 c6c7
 [21/54]  0:01:23     137m     177  ++9/12 Ke3e4
 [21/54]  0:01:27     143m     616  Ke3e4 Ke7e6 Ke4d4 Ke6e7 Kd4c3 a6a5 Kc3d4 a5a4 h2h4 b5b4 a3xb4 a4a3 Kd4c3 Ke7d8 e5e6 h7h5 b4b5 a3a2 Kc3b2 Kd8e7 b5b6 Ke7xe6
 [21/54]  0:01:27     144m     616  ok/2.4
 [22/54]  0:01:32     152m     612  Ke3e4 Ke7e6 Ke4d4 Ke6e7 Kd4c3 a6a5 Kc3d4 a5a4 h2h3 h7h5 h3h4 b5b4 a3xb4 a4a3 Kd4c3 a3a2 Kc3b2 c4c3+ Kb2xa2 c3c2 Ka2b2 Ke7e6 b4b5 Ke6xe5
 [22/58]  0:02:09     215m     612  ok/1.5
 [23/58]  0:02:25     242m     883  Ke3e4 Ke7e6 Ke4d4 Ke6e7 Kd4c3 a6a5 Kc3d4 a5a4 Kd4c3 Ke7e6 Kc3b4 c4c3 Kb4xc3 Ke6e7 Kc3b4 Ke7e6 Kb4xb5 h7h6 h2h4 Ke6e7 h4h5 Ke7f7 c6c7
 [23/67]  0:03:54     397m     883  ok/1.8
 [24/75]  0:04:37     468m     878  Ke3e4 Ke7e6 Ke4d4 Ke6e7 Kd4c3 a6a5 Kc3d4 h7h6 h2h3 c4c3 Kd4xc3 Ke7e6 h3h4 Ke6e7 Kc3d3 Ke7e6 Kd3d4 b5b4 a3xb4 a5xb4 Kd4c4 Ke6xe5 c6c7 Ke5
e4 c7c8=Q

[jdart]

Deep Shredder 10 on the remaining two positions, at 1 hr/move. Looks pretty convincing:
Id: Bernardino-Ortiz Elias, Corr CADAP Zonal-15 Final 2002
Fen: 2N5/2R2pp1/5r1p/k7/Pp6/1P4n1/1KP5/8 w - - 0 1
Bm: c4

yes 1 30 +180 1 c4
yes 1 30 +180 2 c4
yes 2 30 -93 26 c4
yes 2 30 -168 121 c4
yes 2 30 -183 246 c4 h5
no 2 30 -56 308 Ra7+ Ra6 Rxf7
no 2 30 -56 322 Ra7+ Ra6 Rxf7
no 3 30 -73 434 Ra7+ Ra6 Rxf7 g5
no 4 30 -38 778 Ra7+ Ra6
no 4 30 -38 934 Ra7+ Ra6 Rxf7 g5 c4
no 5 30 -66 2063 Ra7+ Ra6
no 5 30 -97 2546 Ra7+ Ra6 Rxf7 g5 c4 h5
no 6 50 -71 7313 Ra7+ Ra6
no 6 50 -15 8942 Ra7+ Ra6
no 6 50 +0 9599 Ra7+ Ra6 Rb7 Ra8 Rb5+ Ka6 Rb6+ Ka5 Rb5+
Ka6 Rb6+ Ka5 Rb5+
no 7 50 +0 14756 Ra7+ Ra6 Rb7 Ra8 Rb5+ Ka6 Rb6+ Ka5 Rb5+
Ka6 Rb6+ Ka5 Rb5+
no 8 50 +0 24894 Ra7+ Ra6 Rb7 Ra8 Rb5+ Ka6 Rb6+ Ka5 Rb5+
Ka6 Rb6+ Ka5 Rb5+
no 9 60 +0 43515 Ra7+ Ra6 Rb7 Ra8 Rb5+ Ka6 Rb6+ Ka5 Rb5+
Ka6 Rb6+ Ka5 Rb5+
no 10 90 +0 76741 Ra7+ Ra6 Rb7 Ra8 Rb5+ Ka6 Rb6+ Ka5 Rb5+
Ka6 Rb6+ Ka5 Rb5+
no 11 120 +0 122697 Ra7+ Ra6 Rb7 Ra8 Rb5+ Ka6 Rb6+ Ka5 Rb5+
Ka6 Rb6+ Ka5 Rb5+
no 12 250 +0 299467 Ra7+ Ra6 Rb7 Ra8
no 13 360 +0 469770 Ra7+ Ra6 Rb7 Rc6 Ra7+ Ra6 Rb7 Rc6 Ra7+
Ra6
no 14 700 +17 918274 Ra7+ Ra6 Rxf7 g5 Re7 Rf6 Re5+ Ka6 Ne7 Kb7
Nd5 Rf5 Re7+
no 15 1190 +2 1554753 Ra7+ Ra6 Rxf7 g5 Re7 Rf6 Re5+ Ka6 Ne7 Kb7
Nd5 Rf8 Re7+ Kc6 Nxb4+ Kd6 Rh7 h5 Kc3
no 16 3030 +0 3879069 Ra7+ Ra6 Rxf7 g5 Re7 Rf6 Re5+ Ka6 Ne7 Kb7
Nd5 Rf7 Nxb4 Nf5 Rb5+ Kc8 Rc5+ Kb7 Rb5+
Kc8 Rc5+ Kb7 Rb5+
no 17 5880 +0 6915277 Ra7+ Ra6 Rxf7 g5 Re7 Rf6 Re5+ Ka6 Ne7 Kb7
Nd5 Rf7 Nxb4 Nf5 Rb5+ Kc8 Rc5+ Kb7 Rb5+
Kc8 Rc5+ Kb7 Rb5+
yes 17 8390 +1 9766195 c4
yes 17 16910 +36 20302004 c4
yes 17 51390 +107 65337811 c4 g5 c5 g4 Ne7 Rf2+ Kb1 Rf1+ Kc2 Rf2+
Kd3 Rf3+ Kc4 Rf4+ Kd5 Ka6 Rc6+ Kb7 Rxh6
Rf3 Rb6+ Kc7 Ke5 Re3+
yes 18 55360 +105 70568103 c4 g5 c5 g4 Ne7 Rf2+ Kb1 Rf1+ Kc2 Rf2+
Kd3 Rf3+ Kc4 Rf4+ Kd5 Ka6 Rc6+ Kb7 Rxh6
Kc7
yes 19 65090 +130 83792402 c4 g5
yes 19 79880 +180 103572227 c4 g5
yes 19 100360 +211 132413399 c4 g5 c5 Ne4 c6 Nc5 Ra7+ Na6 Rb7 Nb8 Rxb8
Rxc6 Ne7 Re6
yes 20 117800 +210 154948638 c4 g5 c5 Ne4 c6 Nc5 Ra7+ Na6 Rb7 Nb8 Rxb8
Rxc6 Ne7 Rb6 Rg8 Rf6 Kc1
yes 21 145220 +210 190018087 c4 g5 c5 Ne4 c6 Nc5 Ra7+ Na6 Rb7 Nb8 Rxb8
Rxc6 Ne7 Rb6 Rxb6 Kxb6
yes 22 234940 +235 305260030 c4 g5
yes 22 339640 +285 447177669 c4 g5
yes 22 471140 +286 620938255 c4 Ne4 c5 Rf2+ Kc1 Rf6 Ne7 Nxc5 Rxc5+ Kb6
Rc4 Ka7
yes 23 627450 +279 808814559 c4 Ne4 c5 Rf2+ Kc1 Rf6 Ne7 Nxc5 Rxc5+ Kb6
Rb5+ Ka7
yes 24 852940 +285 1089604618 c4 Ne4 c5 Rf2+ Kc1 Rf6 Ne7 Nxc5 Rxc5+ Kb6
Rb5+ Ka7 Rxb4 h5 Rh4 Rh6 b4 g5 Rh1 Re6
Nf5
yes 25 1388420 +289 1733301586 c4 Ne4 c5 Rf2+ Kc1 Rf6 Ne7 Nxc5 Rxc5+ Kb6
Rb5+ Ka7 Rxb4 h5 Rd4
yes 26 2660470 +314 2147483647 c4 Ne4

Result: Success
Found in: 8390 ms (00:00:08.390)

-------------------------------------------------------------------------------

Id: Kramnik-Leko, World Chess Chmp., Brissago (m/8) 2004
Fen: 4r1k1/5p1p/p1pb1nq1/1P4p1/3P4/1BPb1PP1/1P1N1Q1P/R1B3K1 b - - 0 1
Bm: Re2

no 1 10 +20 1 axb5
no 1 10 +20 2 axb5
no 2 10 -15 147 axb5
no 2 10 -15 238 axb5 Ra7
yes 2 10 +30 479 Re2
yes 2 10 +66 555 Re2
yes 2 10 +66 605 Re2
yes 3 10 +40 821 Re2
yes 3 10 +40 1020 Re2 bxa6
yes 4 10 +40 2620 Re2 Qxe2 Bxe2 bxa6
yes 5 10 +53 3840 Re2 Qxe2 Bxe2 bxa6 Qf5
yes 6 10 +28 10145 Re2 Qxe2
yes 6 10 -22 11007 Re2 Qxe2
yes 6 30 -95 27721 Re2 bxa6 Rxf2 a7 Rf1+ Nxf1
no 6 50 -94 31392 axb5
no 6 50 -74 34507 axb5 Ra7 Re7 Ra8+ Kg7 Ne4 Nxe4
no 7 80 -73 62279 axb5 Ra7 Rf8
no 8 140 -48 131244 axb5 Ra7
no 8 170 -37 163364 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 Bb8 Ra6 g4
no 9 230 -52 237423 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 Bb8 Ra6 Bc7
Be3
no 10 390 -63 404384 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 Bb8 Ra6 Re7
Ra8 Re8 Be3
no 11 800 -60 821563 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 Bb8 d5 Nc5
Ba2 Na4 Qf2 c5
no 12 1420 -83 1493134 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 Bb8 Ra6 Bxg3
hxg3 Nxg3 Qd1 Ne2+ Kg2 Qe4+ Kh2
no 13 3020 -95 3182085 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 Be7
no 14 5950 -99 6358459 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 g4 Ra7 Be7
Bf4
no 15 9690 -74 10399177 axb5 Ne4
no 15 11390 -74 12179929 axb5 Ne4
no 16 20730 -98 22010231 axb5 Ne4 Bxe4 fxe4 Nxe4 Qf1 g4 Ra7
yes 16 33030 -97 36086130 Re2
yes 16 37000 -62 40942795 Re2
yes 16 72420 +2 81877032 Re2 bxa6 Rxf2 Kxf2 Qh5 Kg1 Bxg3 hxg3 Qh3
a7 Qxg3+ Kh1 Qh3+ Kg1 Kg7 a8=Q Qg3+
yes 17 90910 +2 102611967 Re2 bxa6 Rxf2 Kxf2 Qh5 Kg1 Bxg3 hxg3 Qh3
a7 Qxg3+ Kh1 Qh3+ Kg1 Kg7 a8=Q Qg3+
yes 18 149550 +3 167632085 Re2 bxa6 Rxf2 Kxf2 Qh5 Kg1 Bxg3 hxg3 Qh3
a7 Qxg3+ Kh1 Qh3+ Kg1 Kg7 a8=Q Qg3+ Kh1
Ng4
yes 19 294980 +28 329339333 Re2 bxa6
yes 19 367910 +78 409895996 Re2 bxa6
yes 19 951330 +134 1080521166 Re2 Qxe2 Bxe2 Bc4 Bxc4 Nxc4 g4 f4 cxb5 f5
Qxf5 Nxd6 Qc2 Bh6 Qxb2 Rxa6
yes 20 1136670 +159 1277726713 Re2 Qxe2
yes 20 1290080 +182 1443234089 Re2 bxa6 Rxf2 Kxf2 Qh6 Ke3 Bxa6 Rxa6 g4+
Kd3 Qg6+ Ke3 gxf3 Bc4 Qc2 Rxc6 Qf5
yes 21 2152500 +207 2147483647 Re2 bxa6

Result: Success
Found in: 33030 ms (00:00:33.030)

[Jouni]

Fritz10 is always worth a look in test suites:

Fritz 10-128MB P2400:

arasan9.1 0:00:40
Xie Jun-Sermek,T 0:00:41
Reshevsky-Vaganian,S 0:00:05
Grischuk-Timofeev,T 0:03:11
Sveshnikov-Gulko,U 0:00:47
Winawer-Chigorin,S 0:00:01
Tiviakov-Sakaev,F 0:00:41
Giorgadze-Ubilava,T 0:05:00
Planinc-Spassov,R 0:04:57
Kramnik-Shirov,T 0:00:25
Capablanca-Kupchik,H 0:00:00
Shredder-Nimzo,I 0:02:36
Kramnik-Mamedyarov,T 0:00:06
De Carbonnel-Berliner,5 0:00:28
Chandler-Steadman,N 0:00:04
Rybka 1.0beta-Toga II 1.4b5c 0:00:38
Amateur-Rybka,A 0:02:49
arasan9.3 0:01:32
Firman-Neverov,c 0:01:44
Afifi-Beliavsky,T 0:01:17
Bologan-Bronstein,O 0:05:00
arasan9.2 0:00:07
Chernin-Polgar,N 0:01:09
arasan9.4 0:05:00
Grishuk-Kamsky,W 0:00:28
Shirov-Zvjaginsev,B 0:00:09
Velimirovic-Romanishin,O 0:01:09
A. Sokolov-Timoschenko,M 0:00:04
Taborov-Vovk,K 0:01:15
Volokitin-Kozul,V 0:05:00
Smirin-Beliavsky,U 0:00:10
Kramnik-Leko,W 0:05:00
Shamkovich-Waterman,L 0:03:10
Tal-Gurgenidze,A 0:00:31
Lazarevic-Gaprindashvili,V 0:00:28
Nakamura-Shabalov,P 0:00:21
Kovacevic-Timman,B 0:00:11
Timman-Karpov,L 0:05:00
Geller-Uhlmann,A 0:05:00
arasan9.5 0:00:06
Eljanov-Van Wely,T 0:00:43
arasan9.6 0:00:05
Ljubojevic-Karpov,L 0:03:59
Kasimdhzanov-Kasparov,L 0:00:09
Uhlmann-Averbach,D 0:05:00
Christiansen-Seirawan,U 0:00:57
Alekhine/Monosson - Stoltz/Re 0:05:00
Acs-Areshenko,B 0:00:05
Anand-Landa,B 0:05:00
Novikov-Dreev,U 0:00:30
Xu Jun-Nielsen,I 0:01:32
Sermek-Truta,L 0:00:00
Yifan Hou-Adams,R 0:00:05
arasan9.7 0:01:18
Short-Alburt,F 0:00:04
Kasparov-Fedorowicz,W 0:03:11
Sunye Neto-Kasparov,W 0:00:01
Kasparov-Karpov,W 0:05:00
Kasparov-Short,L 0:00:02
Ivanchuk-Kasparov,L 0:00:01
Sadler-Krasenkow,B 0:01:36
Popov-Djukic,E 0:00:10
Bernardino-Ortiz Elias,C 0:00:13
arasan9.8 0:00:04
Nyberg-Bruederle,W 0:00:26

Total time: 1:02:10

Total solved: 54

Jouni

[Eelco de Groot]

The position from Kramnik - Leko in Brissago is correct I think but just not very easy. I let Naum 3 and Toga Checkov Beta analyze in parallel, only 64 Mb hash each, Naum finds it but not earlier than after 77 minutes.

[D]4r1k1/5p1p/p1pb1nq1/1P4p1/3P4/1BPb1PP1/1P1N1Q1P/R1B3K1 b - - bm Re2; c0 "Kramnik-Leko, World Chess Chmp., Brissago (m/8) 2004";id "Dart-New.032";

Engine: Naum 3 (64 MB)
by Aleksandar Naumov

11/28 0:02 -0.44 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf1 h5 5.Ra6 h4 6.Rxc6 b4 (1.326.917) 469

12/39 0:09 -0.35 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf1 Kg7 5.Ra7 Re7 6.Ra6 c5 7.Qxb5 (4.577.991) 468

13/36 0:14 -0.34 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf1 Bb8 5.Ra8 h5 6.Qe2 Kg7 7.Ra6 Qf6 (6.878.541) 471

14/38 0:29 -0.32 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf1 Bb8 5.Ra8 h5 6.Qf3 h4 7.Bc2 Nd2
8.Qe3 (13.944.742) 473

15/41 1:05 -0.34 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qe2 Re7 5.Bc2 Qf5 6.Bd2 Qd5 7.Qh5 f6
8.Ra8+ Kg7 (31.480.701) 477

16/37 1:59 -0.24 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 g4 5.Qe2 Kf8 6.Bc2 Kg7 7.Ra7 Qf5
8.Ra6 Nxc3 9.Qxe8 (58.042.418) 485

17/40 2:57 -0.35 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 g4 5.Qe2 Kf8 6.Bc2 Kg7 7.Ra7 Qf5
8.Qf1 Qd5 9.Bd1 h5 (87.164.849) 492

18/37 5:06 -0.29 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 g4 5.Qe2 Kf8 6.Bc2 Kg7 7.Ra7 Qf5
8.Qf1 Qd5 9.Bd1 h5 10.Bc2 (152.325.305) 496

19/44 7:37 -0.38 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 g4 5.Qe2 Kf8 6.Bc2 Kg7 7.Ra7 Re6
8.Bb3 Rf6 9.Be3 b4 10.cxb4 Bxb4 (233.752.686) 511

20/48 15:04 -0.37 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 g4 5.Qe2 Kf8 6.Bc2 Kg7 7.Ra7 Re6
8.Bb3 Rf6 9.Be3 b4 10.Bc2 Re6 11.Qf1 (468.656.746) 518

21/50 27:17 -0.38 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 g4 5.Qe2 Kf8 6.Bc2 Kg7 7.Ra7 Qf5
8.Qf1 Qd5 9.Bd3 Qh5 10.Rd7 Qg6
11.Be2 Be7 (848.880.632) 518

21/61 77:10 +2.69 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Ke3 Bb5
5.c4 g4+ 6.f4 Nd5+ 7.cxd5 Qxh2 8.Bc4 Qxg3+
9.Ke2 Bxc4+ 10.Nxc4 Qf3+ 11.Kd2 Bxf4+ (2.549.491.101) 550

22/52 97:13 +2.73 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Ke3 Bb5
5.c4 g4+ 6.f4 Bxa6 7.Rxa6 Qxh2 8.Kd3 Qxg3+
9.Kc2 Qxf4 10.Ba4 Qxd4 11.Bxc6 g3
12.Bf3 (3.201.523.775) 548

23/48 135:48 +2.82 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Ke3 Bb5
5.c4 g4+ 6.f4 Bxa6 7.Rxa6 Qxh2 8.Kd3 Qxg3+
9.Kc2 Qxf4 10.Ba4 Qxd4 11.Bxc6 Bf4
12.b3 Kg7 (4.457.902.569) 547

24/52 219:28 +2.86 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Nf1 Qh3
5.Bxg5 Bxf1 6.Rxf1 Qxh2+ 7.Ke3 Qxb2
8.a7 Qxc3+ 9.Kf2 Qxd4+ 10.Kg2 Qxa7
11.Bxf6 Bxg3 12.Bd1 Bd6 13.Rg1 (7.221.446.513) 548 TB:4

25/49 323:03 +2.86 1...Re2 2.bxa6 Rxf2 3.Kxf2 Qh6 4.Nf1 Qh3
5.Bxg5 Bxf1 6.Rxf1 Qxh2+ 7.Ke3 Qxb2
8.a7 Qxc3+ 9.Kf2 Qxd4+ 10.Kg2 Qxa7
11.Bxf6 Bxg3 12.Bg5 Qb8 13.Bd1 Bf4 (10.667.701.720) 550 TB:13

best move: Re8-e2 time: 361:46.578 min n/s: 550.344 nodes: 11.314.414.687 TB: 13


4r1k1/5p1p/p1pb1nq1/1P4p1/3P4/1BPb1PP1/1P1N1Q1P/R1B3K1 b - -

Engine: Toga 1.5 Checkov_beta1 bb5men test5 ("Toga Random" version, Athlon 2009 MHz, 64 MB)
by Letouzey, Gaksch, Pudas and de Groot

11/41 0:20 -0.54 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf1 Bb8 5.Ra8 h5 6.Ra6 h4 7.gxh4 gxh4+
8.Kh1 Bg3 9.Be3 (6.110.374) 294

12/41 0:55 -0.32 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf1 Bb8 5.Ra8 h5 6.Ra6 h4 7.g4 b4
8.Qf3 Bc7 (16.491.021) 297

13/42 2:37 -0.45 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qe2 c5 5.Bc2 cxd4 6.cxd4 Kh8
7.Qxb5 Rc8 8.Qa4 f5 9.Qd7 Rf8 10.Ra5 Bb4 (47.246.354) 299

14/45 7:22 -0.47 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qe2 c5 5.Bc2 cxd4 6.cxd4 h6 7.Bd3 Qf6
8.Ra6 Re6 9.Be3 Qf5 10.g4 Qf6
11.Ra8+ Kg7 12.Bxb5 (131.759.635) 298

15/52 22:43 -0.31 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qe2 Re7 5.Bc2 f5 6.Qf1 Re8 7.Ra7 Kh8
8.Bb3 Bb8 9.Rf7 f4 10.Kh1 (400.553.515) 293

16/61 66:29 -0.41 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qe2 Bb8 5.Ra6 Kg7 6.Bc2 h6 7.Bd3 f5
8.Qf1 Re6 9.Kh1 Kh8 10.Ra8 Re8 (1.188.578.641) 297

17/61 211:58 -0.35 1...axb5 2.Ne4 Bxe4 3.fxe4 Nxe4
4.Qf3 Bb8 5.Ra6 g4 6.Qd3 Kg7 7.Kg2 Qf5
8.Qf1 Qd7 9.Kg1 f5 10.Ra5 Kh8 11.Kh1 (3.814.158.023) 299

best move: a6xb5 time: 361:46.359 min n/s: 299.143 CPU 100.0% n/s(1CPU): 299.143 nodes: 6.493.280.000


Toga was handicapped because it was using random evaluation This is an idea from Chetan Reinhard in the CSS forum. I don't think there is a strength increase because of it but the evaluation/movechoice is not totally random either. In the experimental Toga Random the eval is more random deep in the q-search, at depth -20 there should be an evaluation between plus or minus twenty centipawns around the normal evaluation... It probably is not such a good idea to make eval less exact the deeper you go, the opposite, and a small random factor in the first iterations only is probably better. All of this probably makes more sense in a true Monte Carlo approach where you just try different variations and the variability can come from a random factor in eval. Rybka has an edge here and probably does this/something like this in Randomizer mode.

The playing strength has not totally gone South though, still managing about 1½ - 4½ against Naum with this

Code: Select all

   // phase mix

   phase = mat_info->phase;
   opening += rand()%(2*depth - 1) - depth;
   eval = ((opening * (256 - phase)) + (endgame * phase)) / 256;

This is only called for depths <=0, i.e. in quiescence search, and in the endgame the influence is zero.
The branching factor of Toga Checkov is not good enough to find the solution I think.

[jdart]

A few more from recent games:

r1b1r1k1/p2q1p1p/1p2np1Q/2np1N2/8/6PB/P4P1P/1R2R1K1 w - - bm Rbd1; id "Sandipan-Tiviakov, Canadian op 2007";
r3qrk1/p5b1/1p1p1p2/2pP2pp/1nN1PP1B/2Nn3P/PP2Q1P1/R4RK1 w - - bm Nxd6; id "Gurevich-Sherbakov, Eu Club Cup, Neum BIH 2000";
r1b1r1k1/ppp2ppp/2nb4/3Pp3/4n2q/PP3PP1/1B2N2P/RN1QKB1R b KQ - bm Nxg3; id "Vijayalakshmi-Negi, Aeroflot Festival Moscow 2007";
5rk1/6pp/p1R1nr2/3pNq2/P2Pn3/4P1P1/4Q2P/2R1B1K1 w - - bm g4; id "Fressinet-Kosten, TCh-FRA Top 16 Gp A, Noyon 2008";
6rk/Q4p1p/2bP4/1p2pp2/2p1P2q/5R1P/1PB3PK/8 w - - bm Qc5; id "Kotronias-L'Ami, Sigeman & Co., Malmo 2007";

In addition, these 2 are very hard - I am not getting a very convincing score difference for best and next-best moves so these might not be good tests, but I believe the solution moves are in fact best:

r1bq1r1k/p1pnbpp1/1p2p3/6p1/3PB3/5N2/PPPQ1PPP/2KR3R w - - bm g4; id "Polgar-Berkes, Hunguest Hotels Super Chess Tournament, Budapest 2003";
r4rk1/2qn1p2/p3p2p/1p1P2p1/6P1/4N3/PP2QP2/1K1R3R b - - bm Nf6; id "Spassky-Karpov, Candidates sf1 (m/8) 1974";

[Eelco de Groot]

[D]r1b1r1k1/p2q1p1p/1p2np1Q/2np1N2/8/6PB/P4P1P/1R2R1K1 w - - bm Rbd1; id "Sandipan-Tiviakov, Canadian op 2007";

The new experimental Glaurung from Tord - Thanks Tord! - in action. I hope Tord does not mind that I post some random results already, it is so much fun!

Engine: Glaurung 080418 Default (256 MB)
by Tord Romstad

2.00 0:00 -2.41 1.Qxf6 Ba6 2.Nh6+ Kf8 (305) 1

3.00 0:00 -0.96 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qxh7 (955) 3

4.00 0:00 -0.96 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qxh7 (2.165) 8

5.00 0:00 -2.09 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qxh7 Kd8 5.Nxf7+ Kc7 (4.063) 14

6.00 0:00 -1.64 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qb2 Ba6
4.Qh8+ Ke7 5.Qxh7 (12.144) 40

7.00 0:00 -1.58 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qxh7 Kd8 5.Nxf7+ Kc7 6.Qh5 (23.345) 71

8.00 0:00 -1.90 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qxh7 Kd8 5.Nxf7+ Kc7 6.Rbc1+ Kb8
7.Bg4 (38.907) 108

9.00 0:00 -1.74 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qxh7 Kd8 5.Nxf7+ Kc7 6.Rxe4 dxe4
7.Qxe4 (117.784) 228

9.00 0:00 -1.21 1.Ng7 Nxg7 2.Bxd7 Bxd7 3.Qxf6 Rac8
4.Rxe8+ Rxe8 5.Rd1 Ne4 6.Qd4 (277.802) 335

10.00 0:00 -1.09 1.Ng7 Nxg7 2.Bxd7 Bxd7 3.Qxf6 Rac8
4.Rxe8+ Rxe8 5.Rd1 Ne4 6.Qd4 Bg4 (357.145) 368

11.01 0:01 -1.33 1.Ng7 Nxg7 2.Bxd7 Bxd7 3.Qxf6 Rac8
4.Rxe8+ Rxe8 5.Rd1 Bf5 6.Qc6 Be4
7.Qc7 (560.035) 412

11.02 0:01 0.00 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Nf5 Kg8 5.Nh6+ Kf8 6.Nf5 (819.825) 437

12.01 0:02 0.00 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Nf5 Kg8 5.Nh6+ Kf8 6.Nf5 (1.031.839) 446

13.01 0:04 0.00 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Nf5 Kg8 5.Nh6+ Kf8 6.Nf5 (1.928.345) 480

14.01 0:06 0.00 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Nf5 Kg8 5.Nh6+ Kf8 6.Nf5 (3.144.963) 498

15.01 0:38 +0.64 1.Qxf6 Ne4 2.Rxe4 dxe4 3.Bf1 Ba6
4.Bxa6 h5 5.Nh6+ Kh7 6.Nxf7 Qe7
7.Qh6+ Kg8 8.Qg6+ Kf8 9.Nh6 Qg7
10.Qf5+ Ke7 (19.701.645) 505

15.13 2:53 +6.62 1.Rbd1 Qc7 2.Qxf6 Rd8 3.Nh6+ Kf8
4.Qh8+ Ke7 5.Nf5+ Kd7 6.Rxd5+ Kc6
7.Rxd8 Nxd8 8.Bg2+ Kb5 9.Qb2+ Ka5
10.Qc3+ Ka4 11.Nd4 b5 12.Rb1 Nc6
13.Bxc6 (89.116.680) 513

16.01 3:23 +7.92 1.Rbd1 Qe7 2.Nxe7+ Rxe7 3.Rxd5 Nd7
4.Rh5 Ndf8 5.Bf5 Re8 6.Bxh7+ Nxh7
7.Qxh7+ Kf8 8.Rf5 Ke7 9.Qg7 Kd8
10.Rd5+ Bd7 11.Qxf7 (105.564.630) 518

17.01 3:55 +8.25 1.Rbd1 Qe7 2.Nxe7+ Rxe7 3.Rxd5 Nd7
4.Rh5 Ndf8 5.Bf5 Re8 6.Bxh7+ Nxh7
7.Qxh7+ Kf8 8.Rf5 Ke7 9.Qg7 Rf8
10.Qxf6+ Ke8 11.Rd5 (123.412.347) 524

18.01 17:45 +10.56 1.Rbd1 Qc7 2.Qxf6 Rd8 3.Nh6+ Kf8
4.Qh8+ Ke7 5.Nf5+ Kd7 6.Rxd5+ Kc6
7.Rxd8 b5 8.Bg2+ Kb6 9.Rd6+ Qxd6
10.Nxd6 Bb7 11.Qxh7 Bxg2 12.Kxg2 Rd8
13.Nxf7 Rd2 (553.111.693) 518

With a very experimental Build, Glaurung goes to + 3 or more for the alternative 1. Qxf6, instead of 0.00. The algorithm may not be entirely correct... This version has very high settings for King Safety, roughly double the normal but I had not expected these changes I just made it, I have no idea what it will do now next...


r1b1r1k1/p2q1p1p/1p2np1Q/2np1N2/8/6PB/P4P1P/1R2R1K1 w - -

Engine: Glaurung 080419 Mjolnir 002 Build 4 (256 MB)
by Tord Romstad

2.00 0:00 +2.41 1.Qxf6 Ne4 2.Nh6+ Kf8 (320) 1

3.00 0:00 +4.82 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Qh8+ Ke7
4.Qe5 (4.259) 18

4.00 0:00 +5.43 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Qh8+ Ke7 (12.756) 51

5.00 0:00 +5.35 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 Ng7
4.Rg4 (58.137) 161

6.00 0:00 +5.05 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Rc1 Ng7 5.Bxd7 (67.679) 173

7.00 0:00 +4.78 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Bf5 Nd4 5.Bxd7 (98.952) 211

8.00 0:00 +3.62 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Re1 Nd8 5.Qh8+ Ke7 6.Rxe4+ Kd6
7.Rxe8 Qxh3 (139.026) 254

9.00 0:01 +3.90 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Re1 Nd8 5.Bxd7 Bxd7 6.Qh8+ Ke7
7.Rxe4+ Be6 8.Qxh7 (338.394) 338

10.01 0:01 +4.01 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Re1 Qc7 5.Rxe4 Ng7 6.Bd7 Qxd7 (763.564) 390

11.01 0:03 +3.50 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Re1 Qc7 5.Rd1 Ng7 6.Bd7 Qc4 7.Bc6 Qxa2 (1.599.379) 419

12.01 0:08 +3.03 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Nf5 Kg8 5.Nh6+ Kf8 6.Rc1 Qb7
7.Qh8+ Ke7 8.Nf5+ Kd8 9.Qf6+ Qe7
10.Nxe7 Rxe7 11.Qh8+ Re8 12.Qxh7 (3.956.042) 450

13.01 0:25 +3.07 1.Qxf6 Ne4 2.Nh6+ Kf8 3.Rxe4 dxe4
4.Rc1 Rb8 5.Kh1 Rb7 6.Qh8+ Ke7
7.Nf5+ Kd8 8.Qf6+ Qe7 9.Nxe7 Rbxe7
10.Qd4+ Rd7 11.Qxe4 (11.836.486) 460

13.02 2:32 +6.31 1.Rbd1 Qe7 2.Nxe7+ Rxe7 3.Bf5 Nf8
4.Bxh7+ Nxh7 5.Rxe7 Be6 6.h4 Ne4
7.Kg2 Bh3+ 8.Kh2 Be6 (71.231.367) 466

14.01 2:47 +6.29 1.Rbd1 Qe7 2.Nxe7+ Rxe7 3.Bf5 Nf8
4.Bxh7+ Nxh7 5.Rxe7 Be6 6.h4 Ne4
7.Rc7 Nf8 8.Qe3 Kg7 (78.182.632) 467

15.01 3:21 +6.29 1.Rbd1 Qe7 2.Nxe7+ Rxe7 3.Bf5 Nf8
4.Bxh7+ Nxh7 5.Rxe7 Be6 6.h4 Ne4
7.Rc7 Nf8 8.Qe3 Kg7 9.Rc6 (94.777.027) 469

16.01 5:07 +6.52 1.Rbd1 Qe7 2.Nxe7+ Rxe7 3.Bf5 Nf8
4.Bxh7+ Nxh7 5.Rxe7 Be6 6.h4 Ne4
7.Qc1 Nc5 8.Qa3 a6 9.Qb2 Rb8 (145.544.078) 472

best move: Rb1-d1 time: 5:20.547 min n/s: 474.455 nodes: 152.070.000

This is the output I get from the default switching to two best mode after doing the first analysis. Rbd1 is already analyzed and gets a high score, but also the score for Qxf6 is climbing and climbing and at
18 plies:

r1b1r1k1/p2q1p1p/1p2np1Q/2np1N2/8/6PB/P4P1P/1R2R1K1 w - -

Engine: Glaurung 080418 Default (256 MB)
by Tord Romstad

18 21:17 +10.56 1.Rbd1 Qc7 2.Qxf6 Rd8 3.Nh6+ Kf8
4.Qh8+ Ke7 5.Nf5+ Kd7 6.Rxd5+ Kc6
7.Rxd8 b5 8.Bg2+ Kb6 9.Rd6+ Qxd6
10.Nxd6 Bb7 11.Qxh7 Bxg2 12.Kxg2 Rd8
13.Nxf7 Rd2 (654.893.899) 512

18 21:17 +3.52 1.Qxf6 Ne4 2.Rxe4 dxe4 3.Bg4 Qd2
4.Bh5 Qg5 5.Qxf7+ Kh8 6.Qxe8+ Qg8
7.Qc6 Rb8 8.Qxe4 Rb7 9.Rc1 Qd8
10.Qe5+ Ng7 11.Qf6 (654.893.899) 512

best move: Qh6xf6 time: 27:11.719 min n/s: 522.870 nodes: 853.170.000

[Eelco de Groot]

[D]r3qrk1/p5b1/1p1p1p2/2pP2pp/1nN1PP1B/2Nn3P/PP2Q1P1/R4RK1 w - - bm Nxd6; id "Gurevich-Sherbakov, Eu Club Cup, Neum BIH 2000";

Engine: Glaurung 080418 Default (256 MB)
by Tord Romstad

10.00 0:00 +2.96 1.a3 gxh4 2.axb4 cxb4 3.Na4 Nc5
4.Nxd6 Qd7 5.Nxc5 bxc5 6.Nf5 (309.704) 366

11.00 0:01 +2.94 1.a3 gxh4 2.axb4 cxb4 3.Na4 Nc5
4.Nxd6 Qd7 5.Nxc5 bxc5 6.e5 fxe5
7.fxe5 (596.894) 429

12.01 0:02 +2.50 1.a3 gxh4 2.axb4 cxb4 3.Na4 f5
4.Qxd3 fxe4 5.Qd2 Qg6 6.f5 Rxf5
7.Rxf5 Qxf5 8.Nxd6 (1.176.559) 464

13.01 0:05 +1.96 1.a3 gxh4 2.axb4 cxb4 3.Na4 b5
4.Nxd6 Nxf4 5.Qf3 Qe5 6.Nxb5 Bh6
7.Rac1 (2.632.442) 484

13.04 0:14 +2.35 1.fxg5 fxg5 2.Bg3 Bd4+ 3.Kh1 Nf4
4.Bxf4 Rxf4 5.Nxd6 Qf8 6.Ncb5 a6
7.Nc7 Rd8 8.e5 (7.479.238) 499

14.01 0:23 +1.47 1.fxg5 fxg5 2.Bg3 Bd4+ 3.Kh1 h4
4.Bxd6 Rf2 5.Rxf2 Nxf2+ 6.Kh2 Nbd3
7.Qd2 Qg6 8.Rf1 g4 (12.152.883) 507

14.02 0:27 +2.03 1.a3 gxh4 2.axb4 cxb4 3.Nd1 Nc5
4.Nxd6 Qd7 5.Nf5 Rae8 6.Nde3 Rxe4
7.Qxh5 Rfe8 (14.053.400) 505

15.01 0:38 +2.03 1.a3 gxh4 2.axb4 cxb4 3.Nd1 Nc5
4.Nxd6 Qd7 5.Nf5 Rae8 6.Nde3 Rxe4
7.Qxh5 Nd3 8.d6 Rxf4 9.Rxf4 Nxf4
10.Qxh4 (19.159.686) 501

15.04 1:01 +2.43 1.Nxd6 Qd7 2.Nf5 Nxf4 3.Rxf4 gxf4
4.a3 Rfe8 5.Nxg7 Kxg7 6.Rd1 Rad8
7.axb4 cxb4 8.Nb5 a6 (30.566.144) 497

16.01 1:24 +2.80 1.Nxd6 Qd7 2.Nf5 Nxf4 3.Rxf4 gxf4
4.Rf1 Rae8 5.Rxf4 Qc7 6.Rf1 c4
7.Qxh5 Nd3 8.d6 Qc5+ 9.Bf2 (42.014.852) 496

17.01 2:04 +2.92 1.Nxd6 Qd7 2.Nf5 Nxf4 3.Rxf4 gxf4
4.Rf1 Rae8 5.Rxf4 Qf7 6.Nd6 Qg6
7.Nxe8 Rxe8 8.Qf3 Rf8 9.d6 (62.209.379) 497

18.01 3:17 +2.60 1.Nxd6 Qd7 2.Nf5 Nxf4 3.Rxf4 gxf4
4.Rf1 Rae8 5.Rxf4 Qf7 6.Nxg7 Qxg7
7.Qxh5 Re5 8.Qf3 f5 9.a3 Nc2 10.Rxf5 Rfxf5
11.exf5 (99.117.008) 502

best move: Nc4xd6 time: 4:09.109 min n/s: 505.712 nodes: 125.970.000

Build 4 wins:

r3qrk1/p5b1/1p1p1p2/2pP2pp/1nN1PP1B/2Nn3P/PP2Q1P1/R4RK1 w - -

Engine: Glaurung 080419 Mjolnir 002 Build 4 (256 MB)
by Tord Romstad

10.00 0:00 +2.94 1.a3 gxh4 2.axb4 Nxb4 3.Nxd6 Qg6
4.Nf5 Rfe8 5.d6 Qf7 (283.356) 342

11.00 0:01 +2.96 1.a3 gxh4 2.axb4 cxb4 3.Na4 Nc5
4.Nxd6 Qd7 5.Nxc5 bxc5 6.e5 Qe7 (597.965) 411

12.01 0:02 +2.86 1.a3 gxh4 2.Nxd6 Qb8 3.axb4 Nxf4
4.Rxf4 Qxd6 5.Rxh4 cxb4 6.Qxh5 bxc3 (1.291.175) 453

13.01 0:05 +2.78 1.a3 gxh4 2.axb4 cxb4 3.Na4 b5
4.Nxd6 Nxf4 5.Rxf4 Qe5 6.Rxh4 bxa4
7.Qxh5 Qxh5 8.Rxh5 (2.735.733) 477

13.04 0:13 +3.03 1.Nxd6 Qb8 2.Nf5 gxh4 3.d6 Rd8 4.e5 Rd7
5.exf6 Qe8 6.Qxe8+ Rxe8 7.Nxg7 Rf8
8.Ne4 Nxb2 9.Nxh5 (6.319.891) 477

14.01 0:17 +3.03 1.Nxd6 Qb8 2.Nf5 gxh4 3.d6 Rd8 4.e5 Rd7
5.exf6 Qe8 6.Qxe8+ Rxe8 7.Nxg7 Rf8
8.Ne4 Nxb2 9.Nxh5 (8.585.695) 479

15.01 0:34 +3.21 1.Nxd6 Nxf4 2.Rxf4 Qd7 3.Nf5 gxf4
4.a3 Rae8 5.axb4 cxb4 6.Qb5 Qxb5
7.Nxb5 a5 8.Nbd6 Re5 (16.619.945) 483

16.01 0:59 +3.00 1.Nxd6 Qd7 2.Nf5 Nxf4 3.Rxf4 gxf4
4.a3 Rae8 5.axb4 cxb4 6.Qb5 Qxb5
7.Nxb5 Rxe4 8.Rxa7 Rf7 9.Nc7 (28.857.808) 485

17.01 3:12 +3.52 1.Nxd6 Qd7 2.Nf5 gxh4 3.a3 Rfe8
4.axb4 Qxf5 5.Qxd3 Qc8 6.Qc4 cxb4
7.Qxb4 Qd7 8.d6 Rad8 9.Rfd1 Rc8
10.Qb3+ Re6 (92.888.825) 483

18.01 4:31 +3.31 1.Nxd6 Qd7 2.Nf5 Nxf4 3.Rxf4 gxf4
4.a3 Rfe8 5.Qxh5 Nd3 6.Qg6 Ne5
7.Nh6+ Kh8 8.Qh5 Bxh6 9.Qxh6+ Kg8
10.Bxf6 Qh7 (132.210.745) 486

best move: Nc4xd6 time: 9:22.250 min n/s: 477.399 nodes: 268.410.000