About my test positions set

Dann Corbit · Post by **Dann Corbit** » Tue Aug 29, 2017 6:45 pm

jdart wrote:What would be the point of supporting invalid chess positions?

--Jon

There are people who like to invent strange positions and then have others solve them.

It is not at all unusual for the positions to be illegal.

Personally, I like legal positions better, but the illegal ones can be fun too.

If you go to chess solver sites or to YACPDB you will find positions that are either not legal or not achievable from the starting position.

Vinvin · Post by **Vinvin** » Mon Sep 04, 2017 11:28 pm

Some positions to remove from my old set :

[d] 2b2r2/2r2pbk/4n1pp/pp1pP3/2pP3q/P1P1B2P/1P1QNRPK/1B3R2 w - - 0 1
Several good moves :

Code: Select all

SF-McBrain-27_x64_modern&#58;
...
 30/55	02&#58;18	 1 379 746k	9 996k	+2,83	1.g3 Qd8 2.h4 h5 3.Kg1 b4 4.cxb4 Ba6 5.bxa5 Kg8 6.Qc2 c3 7.b4 Qd7 8.Ba2 Bc4 9.a4 Rcc8 10.Bxc4 Rxc4 11.b5 Qa7 12.a6 Bxe5 13.Rxf7 Rxf7 14.Qxg6+ Ng7 15.Rxf7 Qxf7 16.Qxf7+ Kxf7 17.dxe5 d4 18.Bxd4 c2 19.a7 Rxa4 20.b6
 30/58	02&#58;18	 1 379 746k	9 996k	+3,24	1.Rf6 b4 2.g3 Qh5 3.g4 Qh4 4.Ng1 bxc3 5.bxc3 Rb7 6.Bc2 Rb2 7.Nf3 Bxf6 8.Nxh4 Bxh4 9.Qc1 Rb7 10.Bxh6 Rh8 11.g5 Kg8 12.Ba4 Rb6 13.Bd1 Bd7 14.Bf3 Bc6 15.Bg4 Bd7 16.Bxe6 Bxe6 17.Qf4 Rb3 18.Qxh4 Rxc3 19.Qf4 Rxh3+ 20.Kg1 Rxa3
 31/64	02&#58;18	 1 379 746k	9 996k	+3,33	1.Bc2 Qd8 2.Ng3 Qh4 3.Nf5 gxf5 4.Rxf5 Kg8 5.g3 Qd8 6.Bxh6 f6 7.Bxg7 Nxg7 8.Rxf6 Rxf6 9.exf6 Qe8 10.g4 Ne6 11.Qh6 Nf8 12.Kg2 a4 13.Rf2 Ra7 14.Qg5+ Kh8 15.Qf4 Kg8 16.h4 Ne6 17.Qh6 Nf8 18.h5 Qe6 19.Qg5+ Kh8 20.Bf5 Qe8 21.Bg6 Nxg6

[d] 2b1Bbk1/5ppp/p3p3/8/1r3P2/4P3/P4P1P/3Q2K1 w - - 0 1

Several good moves :

Code: Select all

SF-McBrain-27_x64_modern&#58;
...
 36/62	07&#58;26	 5 321 291k	11 907k	+2,82	1.h3 Rc4 2.Qb3 Rc5 3.a4 a5 4.Kh2 Ba6 5.Qb8 Rc8 6.Bxf7+ Kxf7 7.Qa7+ Be7 8.Qxa6 Rc5 9.Kg3 g6 10.Qd3 Rd5 11.Qc2 Rc5 12.Qd2 Kf6 13.Qd7 Kf7 14.Qd4 Rd5 15.Qh8 Rh5 16.e4 Bh4+ 17.Kg2 Be7 18.Qd4 Rc5 19.Kf3 Rh5 20.Kg3 Rc5 21.Qd2 Rh5 22.Qd7 Rc5 23.Qd4
 36/65	07&#58;26	 5 321 291k	11 907k	+3,16	1.a3 Rc4 2.Qb3 Rc5 3.Kg2 g6 4.Qb6 e5 5.fxe5 Be6 6.Qxa6 Rxe5 7.Bc6 Rg5+ 8.Kf3 h6 9.a4 Kh7 10.Ke2 Rc5 11.Qb6 Rc2+ 12.Kf3 Be7 13.a5 Bh4 14.a6 Rxf2+ 15.Ke4 Bh3 16.Qb7 Bg2+ 17.Kd3 Bf1+ 18.Kd4 Bf6+ 19.Kd5 Rf5+ 20.Kd6 Bxa6 21.Qxa6 Be5+ 22.Ke7 Kg7 23.Qc4 Rf2 24.Bd5 Bf6+ 25.Ke8 Rxh2 26.Bxf7
 37/52	07&#58;26	 5 321 291k	11 907k	+3,48	1.e4 Rc4 2.Qb3 Rxe4 3.Qb8 Rc4 4.Qa7 Rxf4 5.Qc7 g5 6.a4 Bb4 7.Qxc8 a5 8.Bd7+ Kg7 9.Qc7 Kg6 10.Qe5 h6 11.Bb5 Kh7 12.Bd3+ Kg8 13.Kg2 Rg4+ 14.Kf1 Rf4 15.Ke2 Rh4 16.f3 Kf8 17.Be4 Rh3 18.Kf2 Ke7 19.Qc7+ Kf6 20.Kg2 Rh4 21.Qd7 Kg7 22.Qd4+ Kf8 23.Qf6 Kg8 24.Qe5 Kf8 25.Kg3 Ke7 26.Qc7+ Kf6

e6 is not especially good :
2r1r1k1/4bppp/1q4n1/3pP3/p1pP4/PnR2NBP/1P4P1/1B1QR2K w - - 0 1

[d] 2r2rk1/2qp1p1p/p1p2Pp1/2b1p3/4n3/4B3/PPP1B1PP/R3QR1K w - - 0 1

Several good moves : Bxc5 +6 and Bd3 +3.5

[d] 5rk1/8/pqPp1r1p/1p1Pp1bR/4B3/5PP1/PP2Q1K1/R7 w - - 0 1

Several good moves :

Code: Select all

SF-McBrain-27_x64_modern&#58;
...
 29/43	01&#58;22	 911 955k	11 087k	+2,70	1.a4 b4 2.a5 Qd4 3.Rd1 Qa7 4.Qd3 Qe3 5.Qxe3 Bxe3 6.Re1 Bg5 7.Re2 b3 8.Bd3 R6f7 9.Bxa6 Ra8 10.Bc4 Rxa5 11.Bxb3 Kg7 12.Rh1 Rf8 13.Bc4 Bd8 14.Re4 Rf6 15.f4 Bc7 16.Kf3 Ra4 17.Bb3 Ra5 18.Rb4 exf4 19.gxf4 Rf7 20.Rb7
 29/48	01&#58;22	 911 955k	11 087k	+2,80	1.Re1 R8f7 2.Qc2 Qc7 3.Reh1 Be3 4.Bf5 Kf8 5.Re1 Qa7 6.Be6 Rxf3 7.Bxf7 Rf2+ 8.Qxf2 Bxf2 9.Rf1 Bxg3 10.c7 Qxc7 11.Kxg3 Qc4 12.Rhf5 Ke7 13.Be6 Qd3+ 14.R1f3 Qb1 15.Rf7+ Kd8 16.Rf2 Qg6+ 17.Kh2 Qg5 18.Rd7+ Ke8 19.Rxd6 Qh4+ 20.Kg1 Qg3+ 21.Rg2
 29/54	01&#58;22	 911 955k	11 087k	+2,96	1.g4 Qd4 2.Rd1 Qc5 3.Rxg5+ hxg5 4.Qd2 Rf4 5.Rh1 R8f7 6.Kg3 Qd4 7.Qxd4 exd4 8.Rh5 d3 9.Rxg5+ Kf8 10.Rh5 Ke7 11.Rh1 Rf8 12.Rd1 R4f7 13.Rxd3 a5 14.Rb3 b4 15.a3 Rb8 16.axb4 Rxb4 17.Rxb4 axb4 18.g5 Kd8 19.g6 Ra7 20.Kg4 Ke8 21.f4 b3
 30/64	01&#58;22	 911 955k	11 087k	+3,62	1.Rah1 Qd4 2.Rxg5+ hxg5 3.Rh5 a5 4.g4 R8f7 5.Rxg5+ Kf8 6.Rh5 Ke7 7.Bf5 Qxd5 8.c7 Rxf5 9.Rxf5 Kd7 10.Rxf7+ Qxf7 11.Qxb5+ Kxc7 12.Qxa5+ Kc6 13.a4 Qf4 14.Qc3+ Kb7 15.b4 d5 16.b5 e4 17.a5 Kb8 18.fxe4 Qxe4+ 19.Qf3 Qd4 20.Qf8+ Kc7 21.Qe7+ Kc8 22.Qe6+ Kc7 23.Qc6+ Kd8 24.Qd6+ Kc8
 30/59	01&#58;22	 911 955k	11 087k	+5,97	1.Rxg5+ hxg5 2.Qd2 Qc7 3.Rh1 g4 4.Rh7 Qxh7 5.Bxh7+ Kxh7 6.c7 Rg6 7.fxg4 Rc8 8.Qc2 e4 9.g5 Rg7 10.Qxe4+ Kh8 11.Qe6 Rcxc7 12.Qxd6 Kg8 13.Qe6+ Kh7 14.d6 Ra7 15.Kf3 Rgb7 16.Kg4 b4 17.Qf5+ Kg8 18.Qd5+ Kf8 19.Qe6 Kg7 20.Qf6+ Kg8 21.g6 Rd7 22.Kf5

[d]5rk1/p2qr1b1/1Pn3pp/2pn4/2Np1p2/1N1P2P1/1P1BPP1P/R2QR1K1 b - - 0 1

Several good moves :

Code: Select all

SF-McBrain-27_x64_modern&#58;
...
 29/54	02&#58;36	 1 572 153k	10 052k	-3,18	1. ... fxg3 2.fxg3 axb6 3.Rf1 Ref7 4.Rf3 b5 5.Nxc5 Qe7 6.Na5 Nxa5 7.Ne4 Nb7 8.Ra7 Qd7 9.Nc5 Qc6 10.Rxb7 Rxb7 11.Rxf8+ Bxf8 12.Nxb7 Qxb7 13.Qf1 Bg7 14.Qf3 Qd7 15.g4 Kh7 16.h3 Qe6 17.Kg2 Ne3+ 18.Bxe3 dxe3 19.b3 Qxb3 20.Qxe3 Qd5+ 21.Qf3
 29/41	02&#58;36	 1 572 153k	10 052k	-3,22	1. ... axb6 2.Nxb6 Nxb6 3.Nxc5 Qf5 4.Ne4 Nd5 5.f3 fxg3 6.Nxg3 Qh3 7.Kh1 Be5 8.Rg1 Kh7 9.Qf1 Qh4 10.Rc1 Re6 11.Rc4 Nf4 12.Bxf4 Bxf4 13.Qg2 Rb8 14.Rb1 Rb5 15.Ne4 Rh5 16.b4 Qxh2+ 17.Qxh2 Rxh2+ 18.Kg1 Rxe2 19.Kf1
 29/58	02&#58;36	 1 572 153k	10 052k	-6,65	1. ... Qh3 2.g4 Ne5 3.f3 Nxc4 4.dxc4 Ne3 5.Bxe3 fxe3 6.Nd2 exd2 7.Qxd2 axb6 8.Qc2 Kh7 9.Rf1 Re3 10.Qd2 d3 11.Qxe3 Bd4 12.Qxd4 cxd4 13.exd3 Rxf3 14.Rxf3 Qxf3 15.Ra3 Kg8 16.b4 Qxg4+ 17.Kh1 Qf3+ 18.Kg1 Qe3+ 19.Kg2 Qd2+ 20.Kf3 Qxb4 21.Ra8+ Kf7 22.Ra7+ Ke6 23.h3

[d] 8/p4pk1/r1p1p1p1/P1PpRnPp/1P3P2/2P5/4RK2/8 w - - 0 1
Several good moves : Rxf5 +10 ; Ra2 +5.80

Code: Select all

Stockfish_170826_x64_modern&#58;
...
 40/62	01&#58;01	 865 347k	14 164k	+5,80	1.Ra2 Ne7 2.Re1 Nc8 3.Rd1 Ne7 4.Raa1 Nf5 5.c4 dxc4 6.Rd7 c3 7.Rad1 Kf8 8.Rd8+ Kg7 9.Rc1 Ne7 10.Rxc3 Nd5 11.Rc4 Ne7 12.Rd7 Kf8 13.Rc3 Nd5 14.Rc2 Kg7 15.Rc1 Nxf4 16.b5 Rxa5 17.bxc6 Ra6 18.c7 Rc6 19.Ra1 Nh3+ 20.Ke3 Rxc5 21.Rxa7 Nxg5 22.Rd8 Rc3+ 23.Kd4 Rxc7 24.Rxc7 Nf3+ 25.Ke4 Ng5+ 26.Kf4 Kf6 27.Rd2 e5+ 28.Ke3 Kg7 29.Re7 Kf6 30.Ra7 Ke6 31.Ra6+ Ke7
 40/63	01&#58;01	 865 347k	14 164k	+8,96	1.Rxf5 gxf5 2.Ke3 Kg6 3.Rh2 d4+ 4.Kxd4 f6 5.gxf6 Kxf6 6.Rxh5 Kg7 7.Rh4 Kf8 8.Rh3 Kg8 9.Rh6 Kg7 10.Rh5 Kf8 11.Ke5 Ke7 12.Rh7+ Kf8 13.Kxe6 Kg8 14.Rd7 Kf8 15.Kxf5 Ke8 16.Rh7 Kf8 17.Kf6 Ke8 18.Ke6 Kf8 19.Re7 Kg8 20.Kf6 Kf8 21.Re6 Kg8 22.Re8+ Kh7 23.Re7+ Kg8 24.Rd7

[d]k5r1/5p1p/p1b1B3/2N1n1r1/1P1q4/3p1P1Q/PP3RPP/5R1K b - - 0 1

Qe3 is very good compare to the solution d2

Code: Select all

SF-McBrain-27_x64_modern&#58;
...
 32/61	02&#58;20	 1 524 079k	10 835k	-2,64	1. ... d2 2.Bb3 Qxb4 3.Ne4 Nd3 4.Rxd2 Bxe4 5.Re2 Bb7 6.Qd7 Nf4 7.Re8+ Ka7 8.Rxg8 Rxg8 9.g3 Kb8 10.Qd1 Ne6 11.Bxe6 fxe6 12.Qe2 Rd8 13.Rf2 Qc5 14.Kg2 Qf5 15.b4 h5 16.h4 Rd3 17.a4 Rb3 18.b5 axb5 19.axb5 Bd5 20.Qd1 Rxb5 21.Qa1 e5 22.Rb2 Bxf3+ 23.Kh2 e4 24.Rxb5+ Qxb5
 32/58	02&#58;20	 1 524 079k	10 835k	-2,93	1. ... Qe3 2.Bxf7 Nxf7 3.Qe6 Qxe6 4.Nxe6 Re5 5.Nd4 Ba4 6.Nb3 Bxb3 7.axb3 Rd8 8.Rd1 Kb7 9.Kg1 Red5 10.Rfd2 Kb6 11.Kf2 Kb5 12.f4 Kxb4 13.g4 Kxb3 14.Kf3 a5 15.Rc1 Kb4 16.Rc3 Rd4 17.h4 R8d5 18.Ke3 a4 19.h5 Nd6 20.Rdxd3 Nc4+ 21.Ke2 Nxb2 22.Rxd4+ Rxd4 23.Rc7 Rxf4 24.Rxh7 a3

[d] 5rk1/8/pqPp1r1p/1p1Pp1bR/4B3/5PP1/PP2Q1K1/R7 w - - 0 1
Several good moves :

Code: Select all

SF-McBrain-27_x64_modern&#58;
...
 25/40	00&#58;17	 191 283k	11 192k	+2,89	1.g4 Qd4 2.Rd1 Qb4 3.Rxg5+ hxg5 4.Rh1 Qd4 5.Rh5 R8f7 6.Rxg5+ Kf8 7.Rh5 Ke8 8.Qc2 Qc4 9.Rh8+ Rf8 10.Qxc4 bxc4 11.Rh7 Kd8 12.Rd7+ Kc8 13.Kg3 Kb8 14.Bf5 a5 15.Rb7+ Ka8 16.Rb5 R6f7 17.Rxa5+ Ra7 18.Rxa7+ Kxa7 19.c7 Kb7 20.c8Q+ Rxc8
 26/41	00&#58;17	 191 283k	11 192k	+3,08	1.a4 b4 2.a5 Qd4 3.Rd1 Qa7 4.Qd3 Qe3 5.Qxe3 Bxe3 6.Rh4 Bc5 7.Rdh1 Kg7 8.b3 Ra8 9.Bb1 Bd4 10.Bd3 Bc5 11.f4 exf4 12.Rg4+ Kf8 13.Rxf4 Kg7 14.Rxf6 Kxf6 15.Re1 Kf7 16.Re6 Kg7 17.Kf3 Rf8+ 18.Kg4
 26/56	00&#58;17	 191 283k	11 192k	+4,91	1.Rah1 Qe3 2.Qxe3 Bxe3 3.f4 Kg7 4.Kf3 Bb6 5.f5 Ba5 6.R1h2 Rg6 7.g4 Rff6 8.Kg3 Be1+ 9.Kh3 Rg5 10.Rxg5+ hxg5 11.c7 Rf8 12.f6+ Kxf6 13.Bf5 e4 14.c8R Rxc8 15.Bxc8 Ke5 16.Bxa6 Kd4 17.Bxb5 Kxd5 18.Re2 Ba5 19.a3 Bb6 20.b4 Bd4 21.a4 e3 22.Bd3 Bc3 23.Rxe3 Bxb4 24.Re8 Bc5 25.Re4 Bb6 26.Kg3 Kc5 27.Kf3 d5 28.Re6
 26/53	00&#58;17	 191 283k	11 192k	+5,45	1.Rxg5+ hxg5 2.Qd2 Qc7 3.Rh1 g4 4.Bh7+ Kf7 5.fxg4 Ke8 6.Bf5 Rxf5 7.gxf5 Qf7 8.g4 Qg7 9.Kg3 Rg8 10.Qe2 Qg5 11.Qf3 Kf7 12.c7 Kf6 13.Qe4 Kg7 14.Rh5 Qf4+ 15.Qxf4 exf4+ 16.Kxf4 Rc8 17.g5 Rxc7 18.f6+ Kg8 19.g6 Rc1 20.Kf5 b4

Paloma · Post by **Paloma** » Thu Oct 12, 2017 3:34 am

Hi Vincent,

how far progressed is your work ?

Can't await to test it with my new Houdini 6

regards

MikeB · Post by **MikeB** » Thu Oct 12, 2017 7:26 am

Vinvin wrote:

jdart wrote:Some positions from my "candidates" list. Solutions are not verified with deep search.

Code: Select all

r4k1r/pp1qb1pp/2p1bp2/5N2/3P1BP1/7Q/PP3P1P/R3R1K1 w - - bm d5; c0 "Harimau-Arasan, ICC 2017";
r1r1b1k1/5pp1/4pn2/4N1Q1/p1BR4/3R1P2/2q3PK/8 w - - bm Rh4; c0 "Faleton-Arasan, FICS 2017";
r1bq1rk1/1pp2p2/1bnp1n1p/p3p1p1/4P2B/1BPP1N2/PP1N1PPP/R2Q1RK1 w - - bm Nxg5; c0 "tahta-Arasan, ICC 2017";
7r/3q2k1/2pP2p1/2p1p1B1/3b1p1P/PQ6/1P4P1/2R4K b - - bm Ra8; c0 "MBallicora-Arasan 16.4, 2014";
rnb4R/p3k3/2p1p3/1p2Npr1/PqpPnQ2/2b1P1B1/1P2KPP1/R4B2 w - - bm Rb1; c0 "Botvinnik Gambit position";
5rk1/1ppb1pb1/rq3np1/1NpPp2p/p1P1P1PP/P2BNPQ1/1P6/1K1R2R1 w - - bm Nf5; c0 "asmfishw_2017-05-22_popcnt - Komodo 11.01 64-bit, 2017";
r4rk1/1pqb1ppp/p1n1p3/2R5/3p4/3B4/PP1B1PPP/3QR1K1 w - - bm Bxh7+; c0 "sajahan-Arasan, FICS 2017";
5r1k/2b2pn1/2qpb2p/np2p2N/4P3/1PPB3P/5PP1/2BQR1K1 w - - bm Qd2; c0 "DiverDan-Arasan, ICC 2017";
2rbkr2/1R1b1p2/p1q1pP1p/3p4/3B4/6Q1/4N1PP/1R5K w - - bm h3; c0 "Stockfish 8 x64 BMI2 - Komodo 11.01 64 bit, 2017";
1r4k1/1q3pb1/p2pr2p/n1pNn3/1pP1N1Pp/1P2BP2/2Q3K1/3RR3 w - - bm f4; c0 "Komodo 11.01 64-bit - Stockfish 8 x64 BMI2, 2017";
1r2kb1r/p5p1/1np1p1N1/3pPnB1/1p1P2B1/qP6/2PQ1P1P/1K1R3R b k - bm Nc4; c0 "Van Foreest-L'Ami, Dutch Chmp., Amsterdam 2017";
8/4r1pk/2B5/1P3P2/2PrPb1p/6qP/1R1p2P1/3R2QK b - - bm Ra7; c0 "Rybka forum, 2017";
r4n2/bp2qrk1/2pp2p1/P3p2p/2N1P1pP/2PP2B1/4QPPK/1R5R b - - bm g5; c0 "Arasan v20.20-11-gd66b719-Granddroid, FICS 2017";

I'll soon post my new candidates as well.
Damned ! You took the "Van Foreest-L'Ami" sac !

ASMfish found it in 10 minutes yesterday in my 6 scores ...

McBrain 3.0 on 12 cores macOS OS:High Sierra
[d]1r2kb1r/p5p1/1np1p1N1/3pPnB1/1p1P2B1/qP6/2PQ1P1P/1K1R3R b k - 0 1

Code: Select all

info depth 35 seldepth 20 multipv 1 score cp 0 nodes 1466605697 nps 21966026 hashfull 799 tbhits 7186 time 66767 pv b6a4 b3a4 b4b3 c2c3 b3b2 g6h8 a3a1 b1c2 a1a4 c2b1 a4a1 b1c2 b2b1q d1b1 a1a2 c2d3 a2c4 d3c2 c4a2
info depth 36 currmove b6a4 currmovenumber 1
info depth 36 currmove h8h7 currmovenumber 2
info depth 36 currmove h8h6 currmovenumber 3
info depth 36 currmove a3b2 currmovenumber 4
info depth 36 currmove b6c4 currmovenumber 5
info depth 36 seldepth 28 multipv 1 score cp 7 lowerbound nodes 7398290235 nps 21806432 hashfull 909 tbhits 195437 time 339271 pv b6c4
info depth 36 currmove b6c4 currmovenumber 1
info depth 36 seldepth 28 multipv 1 score cp 15 lowerbound nodes 8767247965 nps 21804084 hashfull 915 tbhits 249863 time 402092 pv b6c4
info depth 36 currmove b6c4 currmovenumber 1
info depth 36 seldepth 47 multipv 1 score cp 26 lowerbound nodes 9137045973 nps 21792697 hashfull 921 tbhits 260735 time 419271 pv b6c4
info depth 36 currmove b6c4 currmovenumber 1
info depth 36 seldepth 47 multipv 1 score cp 42 lowerbound nodes 9615411689 nps 21770874 hashfull 921 tbhits 312419 time 441664 pv b6c4
info depth 36 currmove b6c4 currmovenumber 1
info depth 36 seldepth 47 multipv 1 score cp 63 lowerbound nodes 10040271450 nps 21753519 hashfull 921 tbhits 332204 time 461547 pv b6c4
info depth 36 currmove b6c4 currmovenumber 1
info depth 36 seldepth 47 multipv 1 score cp 92 lowerbound nodes 10789640949 nps 21694828 hashfull 921 tbhits 351887 time 497337 pv b6c4
info depth 36 seldepth 60 multipv 1 score cp 98 nodes 11660123566 nps 21654939 hashfull 923 tbhits 415320 time 538451 pv b6c4 b3c4 b4b3 c2c3 b3b2 g4f5 h8h2 d2e1 a3a1 b1c2 b2b1q d1b1 a1a2 c2d3 b8b1 e1b1 d5c4 d3e4 a2e2 g5e3 e6f5 e4f5 e2h5 f5e6 h5h3 b1f5 h3f5 e6f5 h2h1 d4d5 c6d5 e3a7 h1d1 a7e3 f8a3 g6f4 e8d7 f5g6 d7c6 e5e6 d1b1 g6g7 b1b7 g7f6 a3f8 f4e2 f8g7 f6f5 c6d6 e3d4 g7d4 e2d4
info depth 37 seldepth 75 multipv 1 score cp 111 lowerbound nodes 12946423815 nps 21585791 hashfull 924 tbhits 1881376 time 599766 pv b6c4
info depth 37 currmove b6c4 currmovenumber 1
info depth 37 seldepth 75 multipv 1 score cp 124 lowerbound nodes 13518902574 nps 21587173 hashfull 924 tbhits 1913159 time 626247 pv b6c4
info depth 37 currmove b6c4 currmovenumber 1
info depth 37 seldepth 75 multipv 1 score cp 142 lowerbound nodes 14436199882 nps 21577774 hashfull 926 tbhits 1935296 time 669031 pv b6c4
info depth 37 currmove b6c4 currmovenumber 1
info depth 37 seldepth 75 multipv 1 score cp 166 lowerbound nodes 15255522677 nps 21558493 hashfull 928 tbhits 1947026 time 707634 pv b6c4
info depth 37 currmove b6c4 currmovenumber 1

Vinvin · Post by **Vinvin** » Wed Sep 18, 2019 2:06 pm

Vinvin wrote: ↑Wed Aug 16, 2017 10:56 pm ...
My hard test suite 2008 : http://www.talkchess.com/forum/viewtopic.php?t=22402
...

Even older here, the very beginning in 2006 : https://www.stmintz.com/ccc/index.php?id=477582

Vinvin · Post by **Vinvin** » Tue Sep 24, 2019 4:02 pm

Vinvin wrote: ↑Wed Sep 18, 2019 2:06 pm
Vinvin wrote: ↑Wed Aug 16, 2017 10:56 pm ...
My hard test suite 2008 : http://www.talkchess.com/forum/viewtopic.php?t=22402
...
Even older here, the very beginning in 2006 : https://www.stmintz.com/ccc/index.php?id=477582

And 1 month before :
https://www.stmintz.com/ccc/index.php?id=475633
https://www.stmintz.com/ccc/index.php?id=474224
And some positions still NOT easy for current engines

(Don't forget there are some buggy key moves

)

About my test positions set

Re: About my test positions set

Re: About my test positions set

Re: About my test positions set

Re: About my test positions set

Re: About my test positions set

Re: About my test positions set