Hard talkchess 2018 set - work in progress

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Dann Corbit, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
Vinvin
Posts: 5009
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard talkchess 2018 set - work in progress

Post by Vinvin » Wed Apr 18, 2018 7:57 pm

Dann Corbit wrote:The following positions contain frivolous ep markers:

r4rk1/ppp3pp/3b4/7q/1PPp2b1/P2P1Nn1/3NPRB1/R1B1Q1K1 b - b3
r1b1k1r1/1p2np1p/p1n1pQp1/3p4/3NPP2/P2RB3/2PK2PP/q4B1R w q d6
8/pp3p1k/6pp/7P/P5P1/3K4/1PP5/8 b - a3

Better as:
r4rk1/ppp3pp/3b4/7q/1PPp2b1/P2P1Nn1/3NPRB1/R1B1Q1K1 b - -
r1b1k1r1/1p2np1p/p1n1pQp1/3p4/3NPP2/P2RB3/2PK2PP/q4B1R w q -
8/pp3p1k/6pp/7P/P5P1/3K4/1PP5/8 b - -

So as not to waste database space and effort solving problems that are already solved.
Thanks ! I made the corrections in the files.

Vinvin
Posts: 5009
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard talkchess 2018 set - work in progress

Post by Vinvin » Mon Apr 23, 2018 9:24 pm

After the first version sorted out, it remains 89 regular positions (as Candidates II) and 18 special positions.
I ran this 89 positions : Stockfish_180412_x64_modern, 5 runs, 10 min per positions, 6*4GHz, 6 pieces Syzygy.
Here are the results and after that, the 89 positions.
I still have doubt about 2 to 5 positions. I'll post later.

Code: Select all

    Solutions             1st run          2nd run           3rd run          4th run         5th run       #found    avg time
------------------------------------------------------------------------------------------------------------------------------
  1) Ne7-c6          |  Ne7xg6        |  Ne7xg6        |  Ne7xg6        |  Ne7-c6   347  |  Ne7-c6   366  |    2  |     357
  2) Qf3xf6          |  Qf3xf6   263  |  Qf3xf6    61  |  Qf3xf6   226  |  Qf3xf6   144  |  Qf3xf6    82  |    5  |     155
  3) Rh4xh1          |  Rh4xb4        |  Rh4-c4        |  Rh4xb4        |  Rh4-c4        |  Rh4xb4        |    0  |    ----
  4) Rd4-d6          |  Nf5-e7        |  Nf5-e7        |  Nf5-e7        |  Rd4-d6   319  |  Nf5-e7        |    1  |     319
  5) .. Nb6-c4       |  Nb6-c4   244  |  Nb6-c4   436  |  Nb6-c4   194  |  Nb6-c4   193  |  Nb6-c4   166  |    5  |     247
  6) Qf4-f6          |  Be1-d2        |  Be1-d2        |  Be1-d2        |  Be1-f2        |  Be1-d2        |    0  |    ----
  7) h2-h4           |  h2-h4    117  |  Bc1-e3        |  h2-h3         |  h2-h3         |  Bc1-e3        |    1  |     117
  8) a4-a5           |  Rf1-d1        |  a4-a5    102  |  a4-a5    386  |  a4-a5    180  |  a4-a5    400  |    4  |     267
  9) Rc1xc3          |  Rc1xc3    36  |  Rc1xc3   247  |  Rc1xc3   309  |  Rc1xc3    93  |  Rc1xc3   300  |    5  |     197
 10) Kd2-c1          |  Rc2-c6        |  Rc2-c6        |  Rc2-c6        |  Kd2-c1   201  |  Rc2-c6        |    1  |     201
 11) Ne4-c3          |  h4-h5         |  h4-h5         |  h4-h5         |  h4-h5         |  h4-h5         |    0  |    ----
 12) b2-b4           |  b2-b4     13  |  b2-b4      6  |  b2-b4     18  |  b2-b4    429  |  b2-b4    124  |    5  |     118
 13) g3-g4           |  g3-g4    169  |  g3-g4    303  |  g3-g4    251  |  g3-g4    335  |  g3-g4    423  |    5  |     296
 14) Qg3xe5          |  Qg3xe5   146  |  Qg3xe5    73  |  Qg3xe5    60  |  Qg3xe5   163  |  Qg3xe5    44  |    5  |      97
 15) Rd1-g1          |  Rd1-g1     7  |  Rd1-g1     8  |  Rd1-g1    48  |  Rd1-g1    13  |  Rd1-g1     5  |    5  |      16
 16) .. Qg5xg3       |  Qg5xg3   286  |  Qg5xg3   143  |  Qg5xg3   160  |  Qg5xg3    65  |  Qg5xg3   255  |    5  |     182
 17) h4-h5           |  h4-h5     90  |  h4-h5     71  |  h4-h5     42  |  h4-h5     11  |  h4-h5    160  |    5  |      75
 18) Bd1-b3          |  Bd1-b3    87  |  Rd6-d5        |  Bd1-b3   275  |  Rd6-d5        |  Rd6-d5        |    2  |     181
 19) Rd5xc5, Qb4-h4  |  Qb4-h4   296  |  Rd5xc5    72  |  Qb4-h4    40  |  Rd5xc5     0  |  Qb4-h4   174  |    5  |     116
 20) .. Ba6-c8       |  Ba6-c8   184  |  Ba6-c8   441  |  Ba6-c8   112  |  Ba6-c8   245  |  Qe8-c6        |    4  |     246
 21) .. e5-e4        |  e5-e4     54  |  e5-e4     26  |  e5-e4     34  |  e5-e4    108  |  Kg5-f5        |    4  |      56
 22) Qc7-d8          |  Qc7-d8    95  |  Qc7-d8    63  |  Qc7-d8   224  |  Qc7-d8   188  |  Qc7-d8    32  |    5  |     120
 23) a7-a8B          |  Rb6-a6        |  Rb6-a6        |  Rb6-a6        |  Rb6-a6        |  Rb6-a6        |    0  |    ----
 24) g5-g6           |  g5-g6     29  |  g5-g6     17  |  g5-g6     14  |  g5-g6     17  |  g5-g6     25  |    5  |      20
 25) Bd3xg6          |  Bd3xg6    61  |  Bd3xg6    51  |  Bd3xg6   118  |  Bd3xg6    57  |  Bd3xg6    82  |    5  |      74
 26) .. Ne7-c8, g5-  |  Re8-f8        |  Re8-f8        |  Kg8-h8        |  Re8-f8        |  Kg8-h8        |    0  |    ----
 27) Rg2xg7          |  Rg2xg7   568  |  Rg1-e1        |  Rg2xg7    31  |  Rg1-e1        |  Rg1-e1        |    2  |     300
 28) Ne4xf6          |  Ne4xf6    10  |  Ne4xf6    32  |  Ne4xf6    12  |  Ne4xf6    31  |  Ne4xf6    18  |    5  |      21
 29) Qe2-h5          |  Qe2-h5    22  |  Qe2-h5    85  |  Qe2-h5    33  |  Qe2-h5    21  |  Qe2-h5   159  |    5  |      64
 30) Ng7-f5          |  Ng7-f5    16  |  Ng7-f5    23  |  Ng7-f5     8  |  Ng7-f5     8  |  Ng7-f5    13  |    5  |      14
 31) Qh4-g4          |  Qh4-h3        |  Qh4-f6        |  Qh4-f4        |  Qh4-g4    88  |  Qh4-h3        |    1  |      88
 32) d4-d5           |  d4-d5     34  |  d4-d5     14  |  d4-d5     46  |  d4-d5     70  |  d4-d5     30  |    5  |      39
 33) h5-h6           |  h5-h6     42  |  h5-h6    165  |  h5-h6     11  |  h5-h6     53  |  h5-h6     23  |    5  |      59
 34) c7-c8N          |  c7-c8N   321  |  Kf3-g2        |  Kf3-g2        |  Kf3-g2        |  Kf3-g2        |    1  |     321
 35) Ne3-f5          |  Ne3-f5     3  |  Ne3-f5    32  |  Ne3-f5    31  |  Ne3-f5    10  |  Ne3-f5    13  |    5  |      18
 36) .. Re2xd2       |  Re2xg2        |  Re2xg2        |  Re2xg2        |  Re2xg2        |  Re2xg2        |    0  |    ----
 37) Kg3-h2          |  Kg3-f3        |  Kg3-f3        |  Kg3-f3        |  Kg3-f3        |  Kg3-f3        |    0  |    ----
 38) .. Bb7-d5       |  Bb7-d5    35  |  Bb7-d5    30  |  Bb7-d5    43  |  Bb7-d5    29  |  Bb7-d5    26  |    5  |      33
 39) b3-b4           |  Bc2-d1        |  b3-b4      9  |  b3-b4     17  |  b3-b4      1  |  b3-b4     58  |    4  |      21
 40) Kg2-f3          |  Rc2xd2        |  Rc2xd2        |  Kg2-f3   197  |  Kg2-f3    70  |  Rc2xd2        |    2  |     134
 41) a7-a8Q, a7-a8R  |  Bc7-b6        |  a7-a8Q   310  |  Bc7-b8        |  Bc7-b6        |  Bc7-b8        |    1  |     310
 42) .. Qh5-f5       |  g4xh3         |  g4xh3         |  g4xh3         |  g4xh3         |  g4xh3         |    0  |    ----
 43) a5-a6           |  a5-a6     95  |  a5-a6    247  |  a5-a6     82  |  a5-a6    107  |  a5-a6     97  |    5  |     126
 44) h5xg6           |  Nd6-b7        |  Nd6-b7        |  Nd6-b7        |  Nd6-b7        |  Nd6-b7        |    0  |    ----
 45) b7-b8R          |  b7-b8R     9  |  b7-b8R     9  |  b7-b8R    15  |  b7-b8R     6  |  b7-b8R    11  |    5  |      10
 46) Nb5xc7          |  Kg2-f3        |  Nb5xc7    23  |  Nb5xc7    30  |  Nb5xc7     5  |  Nb5xc7     4  |    4  |      16
 47) Kf2-e1          |  Kf2-e1     8  |  Kf2-e1    69  |  Kf2-e1    23  |  Rd5xd4        |  Kf2-e1    38  |    4  |      35
 48) Ne5xd3          |  Ne5xd3    31  |  Ne5xd3    23  |  Ne5xd3    38  |  Ne5xd3    23  |  Ne5xd3    40  |    5  |      31
 49) Rf4-g4          |  Rf4-g4     7  |  Rf4-g4    50  |  Rf4-g4    14  |  Rf4-g4    23  |  Rf4-g4    14  |    5  |      22
 50) .. Re7-a7       |  Rd4xc4        |  Re7-a7   102  |  Rd4xe4        |  Re7-a7   223  |  Rd4xc4        |    2  |     163
 51) Ke2-d3          |  Ke2-d3    96  |  Nd1-e3        |  Ke2-d3   226  |  Ke2-d3   103  |  Ke2-d3   108  |    4  |     133
 52) Nd4-c6          |  g7-g8Q        |  g7-g8Q        |  g7-g8Q        |  Nd4-c6   584  |  g7-g8B        |    1  |     584
 53) .. Nb6xc4       |  Nb6xc4   184  |  Nb6xc4   156  |  Nb6xc4   142  |  Nb6xc4   227  |  Nb6xc4   116  |    5  |     165
 54) Bg2-e4          |  Bg2-e4     4  |  Bg2-e4    16  |  Bg2-e4     3  |  Bg2-e4     3  |  Bg2-e4    44  |    5  |      14
 55) .. Re7-e4       |  Ka8-b7        |  Ka8-b7        |  Ka8-b7        |  Ka8-b7        |  Ka8-b7        |    0  |    ----
 56) Bh5-f3          |  Bh5-f3   174  |  Bh5-f3   405  |  Bh5-f3   428  |  Bh5-f3    64  |  Bh5-f3   166  |    5  |     247
 57) Kb5-a6          |  Qe6-b3        |  Qe6-b3        |  Qe6-b3        |  Qe6-b3        |  Qe6-b3        |    0  |    ----
 58) Be3-d4          |  Be3-g1        |  Rh7-a7        |  Rh7-a7        |  Be3-g1        |  Rh7-a7        |    0  |    ----
 59) Ra3-c3          |  Ra3xa7        |  Ra3xa7        |  Ra3xa7        |  Ra3xa7        |  Ra3xa7        |    0  |    ----
 60) Re1xe7          |  Re1xe7    59  |  Re1xe7    39  |  Re1xe7    44  |  Re1xe7    24  |  Re1xe7    70  |    5  |      47
 61) Rd1-d8          |  Rd1-d8   134  |  Rd1-d8   123  |  Rd1-d8    87  |  Rd1-d8    37  |  Rd1-d8   146  |    5  |     105
 62) Bd3xh7          |  Nd4xc6        |  Bd3xh7   144  |  Bd3xh7   125  |  Bd3xh7   517  |  Bd3xh7   148  |    4  |     234
 63) Bd3xh7          |  Bd3xh7    30  |  Bd3xh7    49  |  Bd3xh7    46  |  Bd3xh7    35  |  Bd3xh7    49  |    5  |      42
 64) f4-f5           |  f4-f5     61  |  f4-f5     40  |  f4-f5     16  |  f4-f5    233  |  Qg2xg6        |    4  |      88
 65) Kg1-f2, ...     |  Kg1-f2    71  |  Kg1-f2   159  |  Kg1-f2   136  |  Kg1-f2    67  |  Kg1-f2   284  |    5  |     143
 66) g3-g4           |  Rh1-h3        |  Be2-d1        |  Rh1-h3        |  Rh1-h3        |  Rh1-h3        |    0  |    ----
 67) Bd3xh7          |  Bd3xh7    29  |  Bd3xh7    19  |  Bd3xh7    13  |  Bd3xh7   412  |  Bd3xh7    38  |    5  |     102
 68) b6-b7           |  b6-b7    304  |  b6-b7     79  |  b6-b7    237  |  Rf5-f8        |  Rf5-f8        |    3  |     207
 69) Nf8-g6          |  Nf8-g6   468  |  Nf8-g6    91  |  Nf8-g6    79  |  Nf8-g6   402  |  Nf8-g6   126  |    5  |     233
 70) Nd5-f6          |  Nd5-f6   162  |  Nd5-f6   130  |  Nd5-f6   451  |  Nd5-f6    86  |  Nd5-f6   457  |    5  |     257
 71) Nd4-f5          |  Rh4-f4        |  Rh4-f4        |  Nd4-f5   332  |  Rh4-f4        |  Nd4-f5   417  |    2  |     375
 72) g2-g4           |  g2-g4    143  |  g2-g4    140  |  g2-g4    511  |  g2-g4    231  |  g2-g4     37  |    5  |     212
 73) Bc1-g5          |  Bc1-g5    39  |  Bc1-g5   119  |  Bc1-g5    14  |  Bc1-g5     3  |  Bc1-g5    21  |    5  |      39
 74) .. Rd8xd4       |  Rd8xd4   263  |  Rd8xd4    35  |  Rd8xd4    15  |  Rd8xd4   157  |  Rd8xd4   147  |    5  |     123
 75) .. Kg8-g7       |  Kg8-g7   113  |  Kg8-g7   207  |  Kg8-g7   150  |  e4xd3         |  e4xd3         |    3  |     157
 76) Qf3xf4          |  Nb3-d2        |  Nb3-d2        |  Nb3-d2        |  Qf3xf4   440  |  Nb3-d2        |    1  |     440
 77) Qe2xd2, Ne5-g4  |  Ne5-g4   150  |  Rd1xd2        |  Rd1xd2        |  Ne5-g4    71  |  Rd1xd2        |    2  |     111
 78) .. Ra8-e8       |  c7-c6         |  c7-c6         |  Ra8-e8    42  |  Ra8-e8    10  |  Ra8-e8    10  |    3  |      21
 79) .. Rh6xh2       |  a7-a6         |  a7-a6         |  a7-a6         |  Rh6-h4        |  a7-a6         |    0  |    ----
 80) Ne7-d5          |  Ne7-d5    26  |  Ne7-d5     7  |  Ne7-d5    16  |  Ne7-d5    41  |  Ne7-d5    14  |    5  |      21
 81) d5-d6           |  d5-d6     86  |  d5-d6     18  |  d5-d6     20  |  d5-d6     42  |  d5-d6     32  |    5  |      40
 82) Nf3xg5          |  g2-g4         |  Nf3xg5    27  |  Nf3xg5     3  |  Nf3xg5    23  |  Nf3xg5     7  |    4  |      15
 83) Be3-d4          |  Be3-d4    41  |  Be3-d4    51  |  Be3-d4   148  |  Be3-d4    68  |  Be3-d4   208  |    5  |     103
 84) Bc1-g5          |  b2-b4         |  b2-b4         |  b2-b4         |  b2-b4         |  b2-b4         |    0  |    ----
 85) Rf1-f6          |  Ng5-f3        |  Ng5-h3        |  Ng5-h3        |  Rf1-f6   300  |  Rf1-f6   137  |    2  |     219
 86) Qd1-g4          |  Qd1-g4     8  |  b2-b3         |  b2-b3         |  Qd1-g4    34  |  Qd1-g4     3  |    3  |      15
 87) c3-c4           |  Rd1-d6        |  Rd1-d6        |  c3-c4    508  |  c3-c4    541  |  c3-c4    298  |    3  |     449
 88) Bd3xh7          |  Ra1-c1        |  h2-h4         |  Ra1-c1        |  O-O           |  Ra1-c1        |    0  |    ----
 89) Qd1-f3          |  Qd1-f3     3  |  Qd1-f3    41  |  Qd1-f3    12  |  Bf1-e2        |  Qd1-f3     1  |    4  |      14
TOTAL :                  54 found          54 found         59 found         62 found         54 found     283 found  72 found
The 89 positions :

Code: Select all

1B1K1k2/4N2p/3pP1pP/6p1/p7/3N2b1/2r2p2/8 w - - bm Nc6; 
1B1r4/rp2npkp/2b1pbp1/1qp5/nPN1R3/1P1P1QP1/2P2PBP/5R1K w - - bm Qxf6;
1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - bm Rxh1;  c0 "eval = draw" ;
1nb3rr/2pp3p/p1k2P2/n1q1PN2/P1pR3N/b4PBp/1R2P3/1KQ5 w - - bm Rd6+;
1r2kb1r/p5p1/1np1p1N1/3pPnB1/1p1P2B1/qP6/2PQ1P1P/1K1R3R b k - bm Nc4;
1r3r2/4bpkp/1qb1p1p1/3pP1P1/p1pP1Q2/PpP2N1R/1Pn1B2P/3RB2K w - - bm Qf6+;
1r3rk1/3bb1pp/1qn1p3/3pP3/3P1N2/2Q2N2/2P3PP/R1BR3K w - - bm h4; id "AlphaZero - Stockfish8";
1r4k1/pb3p1p/r1p1p1p1/2p1P3/P1P2P2/1PB5/2K3PP/5R2 w - - bm a5;
1rb1qrk1/6pp/2n1pn2/3pN1P1/2pP1P2/b1p1B3/P3QN1P/1BR2RK1 w - - bm Rxc3;
2bk2r1/5q2/1p2pP1Q/pP1pP1P1/P2P4/8/2RK4/8 w - - bm Kc1;
2bqrr1k/p5b1/1p1p2pp/nPpBp3/P1P1N2P/3PN1P1/R4P1K/3Q1R2 w - - bm Nc3;
2kr3r/1p3pb1/pBnqp2p/P2p2p1/8/2PB4/1P3PPP/R2Q1RK1 w - - bm b4;
2r1r1k1/1p4pp/pP1b4/2pP1p1b/2P1pP2/2B3PP/1P3KB1/R3R3 w - - bm g4;
2r2bk1/pNq3p1/2Pp3p/1p1Prp2/1P2p1P1/6Q1/P4P1P/2RR2K1 w - - bm Qxe5;
2r3k1/1r3p2/1qb1pPpR/3pP1N1/p1pP4/PpP5/1Pn1BB1P/3R3K w - - bm Rg1;
3r1r1k/pp5p/4b1pb/6q1/3P4/4p1BP/PP2Q1PK/3RRB2 b - - bm Qxg3+; id "arasan19.137"; c0 "Apicella-Lautier, Clichy 2001";
3r1rk1/pbq1bp1p/1n1Rp1p1/2p1P1N1/4N2P/1P3Q2/PB3PP1/K6R w - - bm h5;
3r2k1/p2prp1p/1p1Rn1pP/4P3/4q3/5RP1/P2Q1PK1/3B4 w - - bm Bb3; id "AlphaZero - Stockfish8";
3r2kq/p2prp1p/1p4pP/2nR4/1Q6/1B3RP1/P4PK1/8 w - - bm Rxc5 Qh4;
3rqbk1/2p3p1/b6p/Q1p5/2N1PP2/1P1P2P1/2P4P/5R1K b - - bm Bc8; id "Stockfish8 - AlphaZero";
4B3/1Pb4p/8/4p1k1/3p1p2/5K2/2P5/8 b - - bm e4;
4K2k/1pQp3p/1R4p1/1P4P1/8/3P3P/1q3r2/8 w - - bm Qd8;
4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - bm a8=B;
4b3/7p/4k3/B4pPP/5K2/P4P2/8/8 w - - bm g6;
4q2r/1b1kbp2/1p2p1p1/pP1pP1N1/P2P1PQP/3BK3/2R5/8 w - - bm Bxg6; id "AlphaZero - Stockfish8";
4r1k1/2pbnrq1/1p1b1p2/2pPp1pp/p1P1P2P/P2QNNB1/1P3PP1/3RR2K b - - bm Nc8 g4; id "Stockfish8 - AlphaZero";
4r1rk/p3qpp1/1pnp1n1p/5P2/P1PPP3/4Q2P/2BB2R1/6RK w - - bm Rxg7;
4r2r/pppkq1pp/2n1pn2/4p1B1/4N2Q/8/PPP3PP/4RRK1 w - - bm Nxf6;
4rrk1/p1q1bpp1/b1n1p2p/1pppP1N1/n4B1P/3P2P1/PPP1QPBN/R3R1K1 w - - 0 1 bm Qh5; 
5N2/6N1/q2k3p/8/6p1/4K1PP/B5P1/8 w - - bm Nf5+; c0 "eval = draw by fortress";
5bk1/1b1rq2p/2p1p1p1/1pP1P3/1Pp1B2Q/2B3P1/5PK1/7R w - - bm Qg4; id "AlphaZero - Stockfish8";
5k2/8/pppppppp/8/PPPPPPPP/8/8/5K2 w - - bm d5;
5nk1/r4p1p/2r1p1p1/3nB1PP/p2PBP2/R7/1P6/K6R w - - bm h6; c0 "Stockfish 260218 64 BMI2-Komodo 2023.00 64-bit, YCLET Super X3 Tournament (2.1) 2018";
5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - bm c8=N;
5rk1/1ppb1pb1/rq3np1/1NpPp2p/p1P1P1PP/P2BNPQ1/1P6/1K1R2R1 w - - bm  Nf5;
5rk1/pp3p1p/7b/2pR4/8/2P4P/P1PNr1P1/2K4R b - - bm Rxd2;
6b1/5p2/1p3Bp1/1P3pP1/5P2/pp1B2K1/pr4P1/k7 w - - bm Kh2;
6k1/1bq1bpp1/p6p/2p1pP2/1rP1P1P1/2NQ4/2P4P/K2RR3 b - - bm Bd5;
6k1/8/1pK4p/bPp5/8/1P6/P1B2P2/8 w - - bm b4;
6k1/p7/8/4B3/Pp3p1P/qP5P/P1Rb2K1/8 w - - bm Kf3;
6q1/PpB5/k7/P6K/6n1/1P4p1/5p2/1B3N1N w - - bm a8=Q+ a8=R+;
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5; c0 "id deep.09 fortress"; 
7k/4r1p1/1p2P2p/P1p4q/1r5P/4Q1PB/4R2K/8 w - - bm a6; c0 "Komodo 1589.00 64-bit 8CPU-Stockfish 020316 64-bit 8CPU, G. Banks 2016";
7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - bm hxg6; c0 "http://www.yacpdb.org/#340530";
8/1P6/8/1b1K4/6p1/5pP1/5P1B/7k w - - bm b8=R;
8/2p2kb1/np1p2p1/pN1Pp1Pp/2P1P2P/1P6/P4BK1/8 w - - bm Nxc7;
8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1; id "ERET 066 - Endspiel"; 
8/3ppp1p/3P4/4N3/8/3n1pKp/8/7k w - - bm Nxd3;
8/4K2p/6pr/5pk1/1pB2R2/p4PP1/8/8 w - - bm Rg4+;
8/4r1pk/2B5/1P3P2/2PrPb1p/6qP/1R1p2P1/3R2QK b - - bm Ra7;
8/8/8/1B6/6p1/8/4KPpp/3N2kr w - - bm Kd3;
8/bp4Pk/4KB2/R6p/2pNp1P1/p7/3p1Pnq/2r5 w - - bm Nc6; 
8/p3N3/1n3N2/2n3pP/pkP5/8/3P4/K7 b - - bm Nxc4;  c0 "eval = draw";
8/p5pq/8/p2N3p/k2P3P/8/KP3PB1/8 w - - bm Be4;
k7/4r1p1/2p5/5P2/2P2N1P/8/K6P/8 b - - bm Re4;
k7/p1pR4/1p3p2/2P2rpB/PbP4p/2N1p2p/KP6/8 w - - bm Bf3+;
nk1b4/2rPp3/4Q1p1/1K2Br2/5P2/8/1P6/8 w - - bm Ka6; id "Der brillante Schachzug (015) - Zugzwang - Ka6 Rf6 f5"
q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - bm Bd4; c0 "eval + -";
qrb5/b1Pp3p/1pkB4/1p2P3/1P1KPp2/R4P1p/P3pP1P/4N1n1 w - - bm Rc3+; c0 "eval = mate";
r1b1k2r/1p1pppb1/p5pp/3P4/q2p1B2/3P1Q2/PPP2PPP/R3R1K1 w kq - bm Rxe7+;
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/6B1/PPP1QPP1/2KR3R w - - bm Rd8;
r1b2rk1/1pq1nppp/pbn1p3/8/3N4/3BBN2/PPP1QPPP/3R1RK1 w - - bm Bxh7+; id "arasan19.159"; c0 "Leu-Muck, DDR-ch H137 corr 1973";
r1b2rk1/2q1bppp/pp2p3/2npP3/1n3P1P/2NBBN2/PPPQ2P1/1K1R3R w - - bm Bxh7;
r1b3k1/ppppn1pp/4n1q1/8/5P2/2N1B3/PPP3QP/3R1RK1 w - - bm f5;
r1b3r1/5p1k/p1n2P1p/P1qpp1P1/1p1p4/3P2Q1/BPPB2P1/R4RK1 w - - bm Kf2; id "arasan19.179"; c0 "Efremov-Fischer, Danube/4 ICCF 2012";
r1b4r/p4pk1/P3p1p1/1pBpPnPp/2pP1K2/2P3P1/4BP2/R6R w - - bm g4;
r1bq1rk1/1p1nbppp/p3p3/2ppP3/5B1P/2PBP3/PP1N1PP1/R2QK2R w - - bm Bxh7+;
r1k1n2n/8/pP6/5R2/8/1b1B4/4N3/1K5N w - - bm b7; id "ERET 036 - Endspiel";
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6; id "ERET 002 - Zugzwang";
r1q1rbk1/2pp1ppp/p1b5/3NP3/3Q4/1P1R2B1/P4PPP/R5K1 w - - bm Nf6+;
r2br1k1/1b3q1p/pp1p1ppB/3Nn3/n1PNP2R/4Q3/1P2B1PP/5R1K w - - bm Nf5;
r2q3r/1p1bbQ2/4p1Bk/3pP3/1n1P1P1p/pP6/Pn4PP/R1B1R1K1 w - - bm g4;
r2qrbk1/1bpn1p1p/p4np1/1p1pp3/3PP3/1PP2NNP/P1B2PP1/R1BQR1K1 w - - bm Bg5;
r2r2k1/pqp1bppp/1pn1pn2/8/2NP1B2/2N1P1P1/PPQ2P1P/R4RK1 b - - bm Rxd4;
r3r1k1/pp1q1p2/2p2npb/PPPp4/3Pp3/2NNPpP1/1R1B1P1K/3Q3R b - - bm Kg7;
r4r1k/ppq4p/2n1bppP/2P1p3/2B2n2/1N3Q2/PBP2PP1/3RR1K1 w - - bm Qxf4;
r4rk1/pb3pp1/1p1qpR2/2ppN3/3P4/2P4P/PP1pQ1P1/3R2K1 w - - bm Qxd2 Ng4;
r4rk1/ppp3pp/3b4/7q/1PPp2b1/P2P1Nn1/3NPRB1/R1B1Q1K1 b - - bm Rae8;
r5k1/p1pb2bp/3p3r/P1pPp1p1/2B1Pq2/1R2QPp1/1P4PP/5RBK b - - bm Rxh2+;
r7/1QP1N1Kp/pn2P1b1/Nnk2p2/7p/p4BP1/1rPPp2q/8 w - - bm Nd5; c0 "eval = mate";
r7/1QpnN1Kp/p3P1b1/Nn1P1p2/3k3p/p4BP1/1rPPp2q/8 w - - bm d6;
rn1q1rk1/2pbb3/pn2p3/1p1pPpp1/3P4/1PNBBN2/P1P1Q1PP/R4R1K w - - bm Nxg5; id "arasan19.16"; c0 "Dann Corbit, CCC 2015";
rn2r1q1/p5k1/2p2bp1/1p4p1/2P5/4B1PQ/5PK1/3R3R w - - bm Bd4;
rn3r1k/pn1p1ppq/bpp4p/7P/4N1Q1/6P1/PP3PB1/R1B1R1K1 w - - bm Bg5;
rn3rk1/p2q1pp1/4p2p/2ppP1NQ/P7/2P1P3/2P3PP/R4RK1 w - - bm Rf6;
rn3rk1/pn1p1ppq/bpp4p/7P/4N3/6P1/PP3PB1/R1BQR1K1 w - - bm Qg4; id "AlphaZero - Stockfish8";
rn3rq1/p5k1/2p2bp1/1p4p1/8/2P1B1PQ/5PK1/3R3R w - - bm c4; id "AlphaZero - Stockfish8"; 
rnb2rk1/1pq1bppp/p3p3/2npP1P1/3N1P2/2NBB3/PPP4P/R2QK2R w KQ - bm Bxh7+;
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - - bm Qf3;

Dann Corbit
Posts: 12232
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Hard talkchess 2018 set - work in progress

Post by Dann Corbit » Mon Apr 23, 2018 11:02 pm

One too many dashes here:
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - - bm Qf3;

should be:
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - bm Qf3;
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

Vinvin
Posts: 5009
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard talkchess 2018 set - work in progress

Post by Vinvin » Tue May 01, 2018 10:24 pm

Dann Corbit wrote:One too many dashes here:
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - - bm Qf3;

should be:
rnbqk2r/p4p2/2p1p3/1p2N1pp/PbpPn2P/2N1P1B1/1P3PP1/R2QKB1R w KQkq - bm Qf3;
Thanks for the correction !

Vinvin
Posts: 5009
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard talkchess 2018 set - work in progress

Post by Vinvin » Tue May 01, 2018 10:56 pm

Vinvin wrote:After the first version sorted out, it remains 89 regular positions (as Candidates II) and 18 special positions.
I ran this 89 positions : Stockfish_180412_x64_modern, 5 runs, 10 min per positions, 6*4GHz, 6 pieces Syzygy.
Here are the results and after that, the 89 positions.
I still have doubt about 2 to 5 positions. I'll post later.
I ran the same 89 positions with Houdini 1.5, 4 runs, 10 min per positions, 6*4GHz.
Results :

Code: Select all

    Solutions             1st run      2nd run        3rd run        4th run      #found    avg time
------------------------------------------------------------------------------------------------------
  1) Ne7-c6         | Ne7xg6      | Ne7xg6       | Ne7xg6        | Ne7xg6       |   0    |   -----   
  2) Qf3xf6         | Qf3xf6   91 | Qf3xf6    45 | Qf3xf6     24 | Qf3xf6  108  |   4    |      67
  3) Rh4xh1         | Rh4-c4      | Rh4xb4       | Rh4xb4        | Rh4xb4       |   0    |   -----   
  4) Rd4-d6         | Rd4-d6  494 | Nf5-e7       | Nf5-e7        | Nf5-e7       |   1    |     494
  5) .. Nb6-c4      | Nb6-a4      | Nb6-a4       | Nb6-a4        | Nb6-a4       |   0    |   -----   
  6) Qf4-f6         | Be1-f2      | Be1-d2       | Be1-f2        | Be1-f2       |   0    |   -----   
  7) h2-h4          | Bc1-e3      | Qc3-e1       | Bc1-e3        | Bc1-e3       |   0    |   -----   
  8) a4-a5          | Rf1-d1      | Bc3-d2       | Rf1-d1        | Rf1-d1       |   0    |   -----   
  9) Rc1xc3         | Ne5xc6      | Ne5xc6       | Ne5xc6        | Ne5xc6       |   0    |   -----   
 10) Kd2-c1         | Rc2-c6      | Rc2-c6       | Kd2-c1    226 | Rc2-c6       |   1    |     226
 11) Ne4-c3         | h4-h5       | h4-h5        | h4-h5         | h4-h5        |   0    |   -----   
 12) b2-b4          | Bb6xd8      | Ra1-b1       | Ra1-b1        | Ra1-b1       |   0    |   -----   
 13) g3-g4          | Bg2-f1      | Bg2-f1       | Bg2-h1        | Bg2-h1       |   0    |   -----   
 14) Qg3xe5         | g4xf5       | g4xf5        | g4xf5         | g4xf5        |   0    |   -----   
 15) Rd1-g1         | Rd1-g1  268 | Rd1-g1    16 | Rd1-g1      1 | Rd1-g1   5   |   4    |      73
 16) .. Qg5xg3      | Qg5xg3   18 | Qg5xg3    19 | Qg5xg3     12 | Qg5xg3  18   |   4    |      17
 17) h4-h5          | h4-h5     7 | h4-h5      5 | h4-h5      24 | h4-h5   23   |   4    |      15
 18) Bd1-b3         | Rd6-d5      | Rd6-d5       | Rd6-d5        | Rd6-d5       |   0    |   -----   
 19) Rd5xc5, Qb4-h4 | Rd5xc5    0 | Rd5xc5     0 | Rd5xc5      0 | Qb4-f4       |   3    |       0
 20) .. Ba6-c8      | Qe8-c6      | Ba6xc4       | Qe8-c6        | Ba6-c8 388   |   1    |     388
 21) .. e5-e4       | h7-h5       | h7-h5        | h7-h5         | e5-e4  124   |   1    |     124
 22) Qc7-d8         | Qc7xd7      | Rb6-f6       | Qc7xd7        | Rb6-f6       |   0    |   -----   
 23) a7-a8B         | Rb6-a6      | Rb6-a6       | b3-b4         | Rb6-a6       |   0    |   -----   
 24) g5-g6          | g5-g6    15 | g5-g6     16 | g5-g6       6 | g5-g6   11   |   4    |      12
 25) Bd3xg6         | Ng5xe6      | Ng5xe6       | Ng5xe6        | Ng5xe6       |   0    |   -----   
 26) .. Ne7-c8, g5- | Bd7-g4      | Ne7-c8    62 | g5-g4       0 | g5-g4    0   |   3    |      21
 27) Rg2xg7         | Rg2xg7  181 | Rg2xg7   136 | Rg2xg7     13 | Rg2xg7 124   |   4    |     114
 28) Ne4xf6         | b2-b4       | Ne4xf6   432 | Ne4xf6    213 | Ne4xf6 373   |   3    |     339
 29) Qe2-h5         | Ng5-h3      | Ng5-h3       | Ng5-h3        | Ng5-h3       |   0    |   -----   
 30) Ng7-f5         | Nf8-e6      | Nf8-e6       | Nf8-e6        | Ng7-e6       |   0    |   -----   
 31) Qh4-g4         | Qh4-g4    9 | Qh4-h3       | Qh4-g4     17 | Qh4-g4 146   |   3    |      57
 32) d4-d5          | f4-f5       | e4-e5        | e4-e5         | e4-e5        |   0    |   -----   
 33) h5-h6          | Ra3-f3      | b2-b4        | Ka1-a2        | Ra3-f3       |   0    |   -----   
 34) c7-c8N         | Kf3-g2      | Kf3-g2       | Kf3-g2        | Kf3-g2       |   0    |   -----   
 35) Ne3-f5         | Ne3-f5    3 | Ne3-f5   243 | Ne3-f5      7 | Ne3-f5  16   |   4    |      67
 36) .. Re2xd2      | Re2xg2      | Re2xd2    37 | Re2xg2        | Re2xd2 190   |   2    |     114
 37) Kg3-h2         | Kg3-f3      | Kg3-h2   231 | Kg3-h2    559 | Kg3-f3       |   2    |     395
 38) .. Bb7-d5      | Bb7-d5    1 | Bb7-d5     3 | Bb7-d5      1 | Bb7-d5   1   |   4    |       2
 39) b3-b4          | b3-b4     2 | b3-b4      0 | b3-b4       1 | b3-b4    8   |   4    |       3
 40) Kg2-f3         | Rc2xd2      | Rc2xd2       | Rc2xd2        | Rc2xd2       |   0    |   -----   
 41) a7-a8Q, a7-a8R | a7-a8Q   77 | a7-a8Q   142 | Bc7-b8        | a7-a8Q 160   |   3    |     126
 42) .. Qh5-f5      | g4xh3       | g4xh3        | g4xh3         | g4xh3        |   0    |   -----   
 43) a5-a6          | Re2-f2      | Re2-f2       | Re2-f2        | Re2-f2       |   0    |   -----   
 44) h5xg6          | Nd6-b7      | Nd6-b7       | Nd6-b7        | Nd6-b7       |   0    |   -----   
 45) b7-b8R         | b7-b8Q      | b7-b8Q       | b7-b8Q        | b7-b8Q       |   0    |   -----   
 46) Nb5xc7         | Kg2-f1      | Kg2-f3       | Kg2-f3        | Kg2-f3       |   0    |   -----   
 47) Kf2-e1         | Kf2-f1      | Kf2-e1     6 | Kf2-e1    212 | Kf2-e1  27   |   3    |      82
 48) Ne5xd3         | d6xe7       | d6xe7        | d6xe7         | d6xe7        |   0    |   -----   
 49) Rf4-g4         | Rf4-g4    0 | Rf4-g4     0 | Rf4-g4      0 | Rf4-g4   0   |   4    |       0
 50) .. Re7-a7      | Re7-a7    4 | Rd4xe4       | Rd4xe4        | Re7-a7   5   |   2    |       5
 51) Ke2-d3         | Ke2-d3    0 | Ke2-d3     0 | Ke2-d3      1 | Ke2-d3   1   |   4    |       1
 52) Nd4-c6         | g7-g8Q      | g7-g8Q       | g7-g8Q        | g7-g8Q       |   0    |   -----   
 53) .. Nb6xc4      | Nb6-d7      | Nb6-d7       | Nb6-d7        | Nb6-d7       |   0    |   -----   
 54) Bg2-e4         | Bg2-e4    0 | Bg2-e4     0 | Bg2-e4      0 | Bg2-e4   0   |   4    |       0
 55) .. Re7-e4      | Re7-e5      | Re7-f7       | Re7-f7        | Re7-e4 442   |   1    |     442
 56) Bh5-f3         | Nc3-b5      | Nc3-b5       | Nc3-b5        | Nc3-d5       |   0    |   -----   
 57) Kb5-a6         | Kb5-a6   13 | Kb5-a6    11 | Kb5-a6     32 | Kb5-a6  18   |   4    |      19
 58) Be3-d4         | Rh7-d7      | Rh7-d7       | Rh7-d7        | Rh7-d7       |   0    |   -----   
 59) Ra3-c3         | Ra3-c3    3 | Ra3-c3    44 | Ra3-c3     10 | Ra3-c3 113   |   4    |      43
 60) Re1xe7         | Re1xe7    0 | Re1xe7     0 | Re1xe7      0 | Re1xe7   0   |   4    |       0
 61) Rd1-d8         | Rd1-d8   75 | Rd1-d8    32 | Rd1-d8     36 | Rd1-d8  60   |   4    |      51
 62) Bd3xh7         | Bd3xh7    7 | Bd3xh7    17 | Bd3xh7    207 | Bd3xh7  21   |   4    |      63
 63) Bd3xh7         | h4-h5       | h4-h5        | Be3-d4        | h4-h5        |   0    |   -----   
 64) f4-f5          | Qg2xg6      | Qg2xg6       | Qg2xg6        | Qg2xg6       |   0    |   -----   
 65) Kg1-f2, ...    | Kg1-f2  202 | Kg1-f2   207 | Kg1-f2    148 | Ra1-e1       |   3    |     186
 66) g3-g4          | g3-g4     0 | g3-g4      0 | g3-g4       0 | g3-g4    0   |   4    |       0
 67) Bd3xh7         | Bd3xh7  494 | Nd2-f3       | Bd3xh7     10 | Bd3xh7   6   |   3    |     170
 68) b6-b7          | b6-b7     3 | b6-b7     11 | b6-b7      19 | b6-b7   17   |   4    |      13
 69) Nf8-g6         | Nf8-g6    2 | Nf8-g6     4 | Nf8-g6      4 | Nf8-g6   3   |   4    |       3
 70) Nd5-f6         | Nd5-f6   55 | Nd5-f6    52 | Nd5-f6     39 | Nd5-f6  45   |   4    |      48
 71) Nd4-f5         | Nd4-f5   49 | Nd4-f5   141 | Nd4-f5    108 | Nd4-f5  82   |   4    |      95
 72) g2-g4          | g2-g4     2 | g2-g4      2 | g2-g4       4 | g2-g4    6   |   4    |       4
 73) Bc1-g5         | e4xd5       | Nf3xe5       | Nf3xe5        | e4xd5        |   0    |   -----   
 74) .. Rd8xd4      | Rd8xd4    0 | Rd8xd4     0 | Rd8xd4      0 | Rd8xd4   0   |   4    |       0
 75) .. Kg8-g7      | e4xd3       | e4xd3        | e4xd3         | e4xd3        |   0    |   -----   
 76) Qf3xf4         | Nb3-d2      | Qf3xf4   259 | Nb3-d2        | Qf3xf4 480   |   2    |     370
 77) Qe2xd2, Ne5-g4 | Ne5-g4   58 | Ne5-g4   301 | Ne5-g4     20 | Ne5-g4 111   |   4    |     123
 78) .. Ra8-e8      | Ra8-e8    1 | Ra8-e8     1 | Ra8-e8      3 | Ra8-e8   0   |   4    |       1
 79) .. Rh6xh2      | a7-a6       | a7-a6        | a7-a6         | Rh6xh2 267   |   1    |     267
 80) Ne7-d5         | Ne7-d5   15 | Ne7-d5    43 | Ne7-d5    117 | Ne7-d5  14   |   4    |      47
 81) d5-d6          | d5-d6    77 | d5-d6     54 | d5-d6     106 | d5-d6   66   |   4    |      76
 82) Nf3xg5         | Nf3xg5  376 | Nf3xg5   279 | Nf3xg5    113 | Nf3xg5 107   |   4    |     219
 83) Be3-d4         | Be3-d4  197 | Be3-d4    80 | Qh3-h6        | Qh3-h6       |   2    |     139
 84) Bc1-g5         | b2-b4       | b2-b4        | b2-b4         | b2-b4        |   0    |   -----   
 85) Rf1-f6         | Rf1-f6  159 | Rf1-f6   235 | Ng5-h3        | Rf1-f6 250   |   3    |     215
 86) Qd1-g4         | b2-b3       | b2-b3        | Bc1-d2        | b2-b3        |   0    |   -----   
 87) c3-c4          | Rd1-d6      | Rd1-d6       | Rd1-d6        | Rd1-d6       |   0    |   -----   
 88) Bd3xh7         | O-O         | O-O          | O-O           | O-O          |   0    |   -----   
 89) Qd1-f3         | Qd1-f3  319 | Bf1-e2       | Bf1-e2        | Qd1-f3 384   |   2    |     352

Paloma
Posts: 1055
Joined: Thu Dec 25, 2008 8:07 pm

Re: Hard talkchess 2018 set - work in progress

Post by Paloma » Thu May 03, 2018 12:18 am

Compare your solutions between SF and Houdini1.5

Code: Select all

StockFish 180412	Houd1.5
 0- 30 sec:  15		19
30-126 sec:  26		17
>  130 sec:  31		14
---------------		----
No Solution: 17		39

Vinvin
Posts: 5009
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard talkchess 2018 set - work in progress

Post by Vinvin » Mon May 21, 2018 11:40 am

Results with McBrain 9.1 on this 89 positions (candidates II) : 5 runs, 10 min per positions, 6*4GHz, 6 pieces Syzygy.
Surprisingly, McBrain 9.1 scores a bit worse than Stockfish-180412 ! 71 vs 72 different solutions found and Total : 275 vs 283 found
A year ago, McBrain was far ahead.
May be Stockfish was improved a lot or McBrain regress ...

Here is the results table :

Code: Select all

    Solutions          1st run        2nd run        3rd run         4th run        5th run       #found    avg time  
---------------------------------------------------------------------------------------------------------------------
  1) Ne7-c6       |  Ne7xg6      |  Ne7xg6      |  Ne7xg6      |   Ne7xg6      |  Ne7xg6       |    0   |    ----
  2) Qf3xf6       |  Qf3xf6    13|  Qf3xf6    56|  Qf3xf6    16|   Qf3xf6    21|  Qf3xf6     11|    5   |      23
  3) Rh4xh1       |  Rh4-c4      |  Rh4xb4      |  Rh4-c4      |   Rh4xb4      |  Rh4-c4       |    0   |    ----
  4) Rd4-d6       |  Nf5-e7      |  Nf5-e7      |  Nf5-e7      |   Nf5-e7      |  Nf5-e7       |    0   |    ----
  5) .. Nb6-c4    |  Nb6-a4      |  Nb6-a4      |  Nb6-a4      |   Nb6-c4   450|  Nb6-a4       |    1   |     450
  6) Qf4-f6       |  Be1-d2      |  Be1-d2      |  Be1-d2      |   Be1-d2      |  Be1-d2       |    0   |    ----
  7) h2-h4        |  Bc1-e3      |  h2-h3       |  Bc1-e3      |   h2-h3       |  Bc1-e3       |    0   |    ----
  8) a4-a5        |  Rf1-d1      |  Rf1-d1      |  a4-a5    209|   a4-a5    356|  Rf1-d1       |    2   |     283
  9) Rc1xc3       |  Ne5xc6      |  Rc1xc3   400|  Ne5xc6      |   Ne5xc6      |  Ne5xc6       |    1   |     400
 10) Kd2-c1       |  Kd2-c1   281|  Rc2-c6      |  Kd2-c1   398|   Kd2-c1   416|  Kd2-c1    336|    4   |     358
 11) Ne4-c3       |  h4-h5       |  h4-h5       |  Kh2-g1      |   h4-h5       |  h4-h5        |    0   |    ----
 12) b2-b4        |  b2-b4      3|  b2-b4     30|  b2-b4     41|   b2-b4     10|  b2-b4     103|    5   |      37
 13) g3-g4        |  g3-g4    231|  Bg2-f1      |  g3-g4    209|   g3-g4    267|  g3-g4     175|    4   |     221
 14) Qg3xe5       |  Qg3xe5    56|  Qg3xe5   160|  Qg3xe5    64|   Qg3xe5    98|  Qg3xe5    120|    5   |     100
 15) Rd1-g1       |  Rd1-g1    72|  Rd1-g1    13|  Rd1-g1    13|   Rd1-g1    34|  Rd1-g1     17|    5   |      30
 16) .. Qg5xg3    |  Qg5xg3    44|  Qg5xg3    40|  Qg5xg3    36|   Qg5xg3    73|  Qg5xg3    100|    5   |      59
 17) h4-h5        |  h4-h5     27|  h4-h5     80|  h4-h5     22|   h4-h5     20|  h4-h5      41|    5   |      38
 18) Bd1-b3       |  Bd1-b3   294|  Bd1-b3   344|  Rd6-d5      |   Rd6-d5      |  Rd6-d5       |    2   |     319
 19) Rd5xc5, Qb4-h|  Qb4-h4     0|  Rd5xc5     0|  Qb4-h4     7|   Qb4-h4   200|  Rd5xc5    102|    5   |      62
 20) .. Ba6-c8    |  Qe8-c6      |  Qe8-c6      |  Ba6-c8    84|   Qe8-c6      |  Ba6-c8    113|    2   |      99
 21) .. e5-e4     |  e5-e4      5|  e5-e4      0|  e5-e4      5|   e5-e4      9|  e5-e4      16|    5   |       7
 22) Qc7-d8       |  Qc7-d8   410|  Qc7-d8   529|  Qc7-d8   139|   Qc7-d8    66|  Qc7-d8     18|    5   |     232
 23) a7-a8B       |  b3-b4       |  Rb6-a6      |  b3-b4       |   b3-b4       |  Rb6-a6       |    0   |    ----
 24) g5-g6        |  g5-g6     10|  g5-g6     20|  g5-g6      6|   g5-g6     13|  g5-g6      15|    5   |      13
 25) Bd3xg6       |  Bd3xg6   348|  Bd3xg6    89|  Bd3xg6    10|   Bd3xg6   158|  Bd3xg6     44|    5   |     130
 26) .. Ne7-c8, g5|  Ne7-c8   404|  Re8-f8      |  Re8-f8      |   Ne7-c8   478|  Re8-f8       |    2   |     441
 27) Rg2xg7       |  Rg1-e1      |  Qe3-f4      |  Qe3-f4      |   Rg2xg7   231|  Rg2xg7    318|    2   |     275
 28) Ne4xf6       |  Ne4xf6    10|  Ne4xf6    33|  Ne4xf6    33|   Ne4xf6    84|  Ne4xf6      7|    5   |      33
 29) Qe2-h5       |  Qe2-h5    89|  Qe2-h5    98|  Qe2-h5    52|   Qe2-h5    40|  Qe2-h5     78|    5   |      71
 30) Ng7-f5       |  Ng7-f5     6|  Ng7-f5     6|  Ng7-f5     3|   Ng7-f5     7|  Ng7-f5      4|    5   |       5
 31) Qh4-g4       |  Qh4-g4   514|  Qh4-h3      |  Qh4-g4    81|   Qh4-f6      |  Qh4-g4     41|    3   |     212
 32) d4-d5        |  d4-d5     55|  d4-d5     62|  d4-d5     16|   d4-d5     22|  d4-d5      30|    5   |      37
 33) h5-h6        |  h5-h6     97|  h5-h6     48|  h5-h6     24|   h5-h6     33|  h5-h6      43|    5   |      49
 34) c7-c8N       |  c7-c8N   204|  c7-c8N   344|  c7-c8N    31|   c7-c8N   327|  c7-c8N    178|    5   |     217
 35) Ne3-f5       |  Ne3-f5    21|  Ne3-f5    18|  Ne3-f5    11|   Ne3-f5     7|  Kb1-a1       |    4   |      14
 36) .. Re2xd2    |  Re2xd2    13|  Re2xd2    48|  Re2xd2   140|   Re2xd2    18|  Re2xd2     11|    5   |      46
 37) Kg3-h2       |  Kg3-f3      |  Kg3-f3      |  Kg3-f3      |   Kg3-f3      |  Kg3-f3       |    0   |    ----
 38) .. Bb7-d5    |  Bb7-d5    16|  Bb7-d5    30|  Bb7-d5   232|   Bb7-d5   141|  Bb7-d5    164|    5   |     117
 39) b3-b4        |  b3-b4    252|  b3-b4    231|  b3-b4    179|   b3-b4    428|  b3-b4     100|    5   |     238
 40) Kg2-f3       |  Kg2-f3    15|  Kg2-f3    15|  Kg2-f3    20|   Kg2-f3    14|  Kg2-f3     14|    5   |      16
 41) a7-a8Q, a7-a8|  Bc7-b6      |  a7-a8Q   190|  Bc7-b6      |   Bc7-b6      |  Bc7-b6       |    1   |     190
 42) .. Qh5-f5    |  Qh5-f5   301|  Qh5-f5   303|  g4xh3       |   g4xh3       |  g4xh3        |    2   |     302
 43) a5-a6        |  a5-a6    469|  Qe3-f2      |  Re2-f2      |   a5-a6    158|  a5-a6     172|    3   |     266
 44) h5xg6        |  Nd6-b7      |  Nd6-b7      |  Nd6-b7      |   Nd6-b7      |  Nd6-b7       |    0   |    ----
 45) b7-b8R       |  b7-b8Q      |  b7-b8Q      |  b7-b8Q      |   b7-b8R    23|  b7-b8R      8|    2   |      16
 46) Nb5xc7       |  Nb5xc7     4|  Nb5xc7    23|  Nb5xc7     3|   Kg2-f3      |  Kg2-f3       |    3   |      10
 47) Kf2-e1       |  Rd5xd4      |  Rd5xd4      |  Rd5xd4      |   Rd5xd4      |  Kf2-e1    135|    1   |     135
 48) Ne5xd3       |  d6xe7       |  d6xe7       |  Ne5xd3   252|   d6xe7       |  d6xe7        |    1   |     252
 49) Rf4-g4       |  Rf4-g4     8|  Rf4-g4    89|  Rf4-g4    27|   Rf4-g4     3|  Rf4-g4     10|    5   |      27
 50) .. Re7-a7    |  Rd4xc4      |  Re7-a7    61|  Rd4xe4      |   Re7-a7   398|  Re7-a7      1|    3   |     153
 51) Ke2-d3       |  Ke2-d3    23|  Ke2-d3   399|  Ke2-d3   303|   Ke2-d3   176|  Ke2-d3    115|    5   |     203
 52) Nd4-c6       |  g7-g8Q      |  g7-g8Q      |  g7-g8Q      |   g7-g8Q      |  g7-g8Q       |    0   |    ----
 53) .. Nb6xc4    |  Nb6xc4    56|  Nb6xc4    45|  Nc5-d7      |   Nb6xc4    49|  Nb6xc4     48|    4   |      50
 54) Bg2-e4       |  Bg2-e4     3|  Bg2-e4   131|  Bg2-e4   238|   Bg2-e4   461|  Bg2-e4      3|    5   |     167
 55) .. Re7-e4    |  Ka8-b7      |  Ka8-b7      |  Ka8-b7      |   Ka8-b7      |  Ka8-b7       |    0   |    ----
 56) Bh5-f3       |  Nc3-b5      |  Nc3-b5      |  Nc3-b5      |   c5-c6       |  Nc3-b5       |    0   |    ----
 57) Kb5-a6       |  Kb5-a6   290|  Qe6-b3      |  Kb5-a6   100|   Kb5-a6   266|  b2-b3        |    3   |     219
 58) Be3-d4       |  Rh7-a7      |  Rh7-a7      |  Rh7-a7      |   Rh7-a7      |  Rh7-a7       |    0   |    ----
 59) Ra3-c3       |  Ra3xa7      |  Ra3xa7      |  Ra3xa7      |   Ra3xa7      |  Ra3xa7       |    0   |    ----
 60) Re1xe7       |  Re1xe7    21|  Re1xe7    22|  Re1xe7    49|   Re1xe7   265|  Re1xe7     97|    5   |      91
 61) Rd1-d8       |  Rd1-d8   125|  Rd1-d8    45|  Rd1-d8   111|   Rd1-d8    69|  Rd1-d8    181|    5   |     106
 62) Bd3xh7       |  Bd3xh7    94|  Nd4xc6      |  Nd4xc6      |   Nd4xc6      |  Bd3xh7     92|    2   |      93
 63) Bd3xh7       |  Bd3xh7    54|  Bd3xh7    15|  Bd3xh7     9|   Bd3xh7    29|  Bd3xh7     11|    5   |      24
 64) f4-f5        |  f4-f5    166|  f4-f5     71|  f4-f5    151|   f4-f5     94|  f4-f5      25|    5   |     101
 65) Kg1-f2, ...  |  Kg1-f2   317|  Kg1-f2   335|  Kg1-f2   487|   Kg1-f2    90|  Kg1-f2    145|    5   |     275
 66) g3-g4        |  Rh1-h3      |  g3-g4    156|  Be2-d1      |   g3-g4    338|  g3-g4      10|    3   |     168
 67) Bd3xh7       |  Bd3xh7     6|  Bd3xh7    38|  Bd3xh7    69|   Bd3xh7    22|  Bd3xh7     57|    5   |      38
 68) b6-b7        |  b6-b7    153|  b6-b7    254|  b6-b7     67|   b6-b7    390|  b6-b7     554|    5   |     284
 69) Nf8-g6       |  Nf8-g6   333|  Nf8-g6   426|  Nf8-g6   196|   Nf8-g6   177|  Nf8-g6    552|    5   |     337
 70) Nd5-f6       |  Nd5-f6    94|  Nd5-f6   191|  Nd5-f6    41|   Nd5-f6    34|  Nd5-f6    306|    5   |     133
 71) Nd4-f5       |  Rh4-f4      |  Nd4-f5    93|  Rh4-f4      |   Rh4-f4      |  Nd4-f5    198|    2   |     146
 72) g2-g4        |  g2-g4    191|  g2-g4    221|  g2-g4    293|   g2-g4     56|  g2-g4     351|    5   |     222
 73) Bc1-g5       |  Bc1-g5    87|  Bc1-g5     0|  Bc1-g5    17|   Bc1-g5   128|  Bc1-g5    169|    5   |      80
 74) .. Rd8xd4    |  Rd8xd4    68|  Rd8xd4    44|  Rd8xd4    23|   Ra8-c8      |  Rd8xd4     97|    4   |      58
 75) .. Kg8-g7    |  Kg8-g7    52|  Kg8-g7    11|  Kg8-g7    14|   Kg8-g7     5|  Kg8-g7    154|    5   |      47
 76) Qf3xf4       |  Qf3xf4   270|  Qf3xf4   490|  Qf3xf4   277|   Qf3xf4   393|  Qf3xf4    245|    5   |     335
 77) Qe2xd2, Ne5-g|  Rd1xd2      |  Rd1xd2      |  Rd1xd2      |   Ne5-g4   540|  Rd1xd2       |    1   |     540
 78) .. Ra8-e8    |  Ra8-e8    23|  Ra8-e8     4|  Ra8-e8   212|   Ra8-e8     3|  c7-c6        |    4   |      61
 79) .. Rh6xh2    |  Kg8-h8      |  Rh6-h4      |  a7-a6       |   a7-a6       |  a7-a6        |    0   |    ----
 80) Ne7-d5       |  Ne7-d5   131|  Ne7-d5    18|  Ne7-d5   332|   Ne7-d5    30|  Ne7-d5      3|    5   |     103
 81) d5-d6        |  d5-d6     55|  d5-d6     13|  d5-d6     61|   d5-d6     46|  d5-d6      87|    5   |      52
 82) Nf3xg5       |  Nf3xg5    22|  g2-g4       |  g2-g4       |   Nf3xg5     7|  g2-g4        |    2   |      15
 83) Be3-d4       |  Be3-d4   549|  Qh3-h6      |  Qh3-h6      |   Qh3-h6      |  Be3-d4    136|    2   |     343
 84) Bc1-g5       |  b2-b4       |  b2-b4       |  b2-b4       |   b2-b4       |  b2-b4        |    0   |    ----
 85) Rf1-f6       |  Rf1-f6   188|  Ng5-f3      |  Ng5-h3      |   Ng5-h3      |  Rf1-f6    224|    2   |     206
 86) Qd1-g4       |  Qd1-g4    25|  Qd1-g4     3|  Qd1-g4    20|   Qd1-g4     3|  Qd1-g4     21|    5   |      14
 87) c3-c4        |  Rd1-d6      |  Rd1-d6      |  Rd1-d6      |   Rd1-d6      |  Rd1-d6       |    0   |    ----
 88) Bd3xh7       |  O-O         |  h2-h4       |  O-O         |   h2-h4       |  Ra1-c1       |    0   |    ----
 89) Qd1-f3       |  Bf1-e2      |  Qd1-f3     0|  Bf1-e2      |   Qd1-f3   409|  Qd1-f3     24|    3   |     144
 ---------------------------------------------------------------------------------------------------------------------
Number found :              57             53             51              57              57      275        71

Vinvin
Posts: 5009
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard talkchess 2018 set - work in progress

Post by Vinvin » Sun Jul 15, 2018 9:50 pm

Vinvin wrote:
Mon Apr 23, 2018 9:24 pm
After the first version sorted out, it remains 89 regular positions (as Candidates II)...
...
I still have doubt about 2 to 5 positions. I'll post later.
...
Checking some moves :

82) Nxg5 is easy win also :

FEN: rn1q1rk1/2pbb3/pn2p3/1p1pPpp1/3P4/1PNBBN2/P1P1Q1PP/R4R1K w - - 0 1

Code: Select all

Stockfish_180424_x64_modern:
... 29/58	00:31	 273 185k	8 736k	+4,22	1.Nxg5 Bxg5 2.Rf3 Bxe3 3.Rg3+ Bg5 4.Qh5 Rf7 5.Rxg5+ Rg7 6.Rxg7+ Kxg7 7.g4 Qh8 8.Qg5+ Kf7 9.gxf5 exf5 10.Bxf5 Bxf5 11.Qxf5+ Ke7 12.Rg1 N8d7 13.Rg6 Rg8 14.Qg5+ Nf6 15.Rxg8 Qxg8 16.Qxf6+ Kd7 17.Qf5+ Qe6 18.Qxe6+ Kxe6 19.Kg2 Kf5 20.Kf3 c6 21.Ne2 Kg5 22.Kg3 Kf5 23.h4 a5 24.Kf3 a4 25.Ng3+ Ke6 26.bxa4 bxa4 27.h5 Nd7 28.h6 Nf8 29.Kg4 Kf7
 29/48	00:31	 273 185k	8 736k	+5,54	1.g4 f4 2.h4 Nc6 3.hxg5 Bb4 4.Qh2 Qe7 5.Bd2 Qg7 6.a3 Bxc3 7.Bxc3 Nc4 8.bxc4 bxc4 9.Be2 a5 10.Kg2 Ne7 11.Rh1 Be8 12.Rab1 Ng6 13.Rbf1 Kf7 14.Qh6 Rh8 15.Qxg7+ Kxg7 16.Rh6 Rxh6 17.gxh6+ Kxh6 18.Rh1+ Kg7 19.Ng5 Nf8 20.Kf3

46) Kf3 wins also, it's a simple transposition.

FEN: 8/2p2kb1/np1p2p1/pN1Pp1Pp/2P1P2P/1P6/P4BK1/8 w - - 0 1

Code: Select all

Stockfish_180424_x64_modern:
... 72/82	12:01	 7 801 353k	10 810k	+3,04	1.Kf3 Ke7 2.Nxc7 Nxc7 3.Bxb6 Kd7 4.Bxa5 Na8 5.Be1 Nb6 6.Ke3 Bf8 7.Kd3 Kc7 8.Kc3 Nd7 9.b4 Be7 10.a4 Kb6 11.a5+ Ka6 12.Kb3 Nc5+ 13.bxc5 dxc5 14.Bc3 Bd6 15.Kc2 Kb7 16.Kd3 Kc7 17.Bd2 Kb7 18.Ke3 Be7 19.Be1 Bd6 20.Kd2 Bc7 21.Kd3 Bd6 22.Bd2 Bf8 23.Bc3 Bd6 24.Ke3 Ka6 25.Kd2 Ka7 26.Ke2 Ka6 27.Kf3 Bb8 28.Kf2 Bd6 29.Ke3 Bb8 30.Kd2 Kb7 31.Ke2 Bd6 32.Kf3 Ka6 33.Be1 Bc7 34.Kg3 Bd6 35.Kf2 Bc7 36.Ke2 Bd6 37.Bd2 Bc7 38.Kf3 Bd6 39.Kf2 Be7 40.Be1 Bd6 41.Kg3 Bc7
 73/80	12:01	 7 801 353k	10 810k	+3,04	1.Nxc7 Nxc7 2.Bxb6 Na6 3.Bxa5 Nc5 4.Kf3 Bf8 5.Ke3 Be7 6.Be1 Nd7 7.a4 Ke8 8.a5 Kd8 9.b4 Kc7 10.Kd3 Kb7 11.Kc2 Ka6 12.Kb3 Nc5+ 13.bxc5 dxc5 14.Bc3 Bd6 15.Kc2 Kb7 16.Kd3 Kc7 17.Bd2 Kb7 18.Ke3 Be7 19.Be1 Bd6 20.Kd2 Bc7 21.Kd3 Bd6 22.Bd2 Bf8 23.Bc3 Bd6 24.Ke3 Ka6 25.Kd2 Ka7 26.Ke2 Ka6 27.Kf3 Bb8 28.Kf2 Bd6 29.Ke3 Bb8 30.Kd2 Kb7 31.Ke2 Bd6 32.Kf3 Ka6 33.Be1 Bc7 34.Ke2 Bd6 35.Bd2 Bc7 36.Kf3 Bxa5 37.Bxa5 Kxa5 38.Ke2 Kb6 39.Kd3 Kc7 40.Kc3 Kd6

86) After 3 hours with SF-matefinder, Qg4 still the best :

FEN: rn3rk1/pn1p1ppq/bpp4p/7P/4N3/6P1/PP3PB1/R1BQR1K1 w - - 0 1

Code: Select all

Stockfish_180412_x64_modern:
...
32/57	00:14	 119 242k	8 144k	+0,85	1.Qg4 Kh8 2.b4 d5 3.Bb2 dxe4 4.Bxe4 Qg8 5.Bc2 c5 6.Be4 cxb4 7.Rad1 Nc6 8.Bxc6 Rac8 9.Bd5 Nc5 10.Re7 Na4 11.Qxb4 Nxb2 12.Qxb2 Bc4 13.Bxc4 Rxc4 14.Rxa7 Rc5 15.Rdd7 Rxh5 16.a4 Rf5 17.Qxb6 Rc8 18.Qb1 Rf6 19.Qe4 Qh7 20.Qxh7+ Kxh7 21.Rxf7 Rxf7 22.Rxf7 Ra8 23.Rf4 h5 24.Rb4 g5 25.Kf1 Kg6 26.Ke2 Re8+ 27.Kf3 Ra8
 32/48	00:14	 119 242k	8 144k	+1,14	1.b3 d5 2.Ba3 Nd7 3.Bxf8 Nxf8 4.b4 Ne6 5.Nc3 Qd3 6.Qxd3 Bxd3 7.Rad1 Bc4 8.b5 cxb5 9.Nxd5 Kf8 10.Nxb6 axb6 11.Bxb7 Rxa2 12.f4 Re2 13.Rxe2 Bxe2 14.Rd6 Bxh5 15.Rxb6 Bg4 16.Kf2 g5 17.fxg5 hxg5 18.Bf3 Bxf3 19.Kxf3


Stockfish_180412_matefinder :
... 49/79	3:11:47	 98 058 036k	8 521k	+1,14	1.Bd2 d5 2.Bb4 Rd8 3.Be7 Nd7 4.Bxd8 Rxd8 5.Qa4 Nb8 6.Nc3 Qf5 7.Re7 Qf6 8.Rae1 Nd6 9.Rxa7 Bc8 10.Rd1 Be6 11.Qd4 Qxd4 12.Rxd4 Nd7 13.a4 Ne5 14.b4 Rb8 15.Rd1 Bg4 16.Ra1 d4 17.Ne4 Nxe4 18.Bxe4 f5 19.Bg2 Rd8 20.f4 Nd3 21.b5 cxb5 22.axb5 Nc5 23.Ra8 Rxa8 24.Rxa8+ Kf7 25.Rd8 d3 26.Kf2 Ke7 27.Rd5 Bxh5 28.Ke3 Bg4 29.Rd4 Ke6 30.Rd8 Ke7 31.Rb8
 49/73	3:11:47	 98 058 036k	8 521k	+1,30	1.b3 d5 2.Ba3 Nd7 3.Bxf8 Nxf8 4.b4 Qf5 5.Nc3 Bc4 6.b5 Nc5 7.bxc6 Nd3 8.Re2 Ne6 9.Rd2 Nec5 10.Na4 Ne6 11.Qf3 Qxf3 12.Bxf3 Ng5 13.Bg2 Ne4 14.Rc2 f5 15.Nc3 Nb4 16.Rcc1 Nxc6 17.Nxe4 fxe4 18.Bxe4 Rc8 19.Bg2 Kf8 20.Rd1 Ne7 21.Rd2 b5 22.Re1 Rc6 23.a3 a5 24.Rb2 Rf6 25.f4 Rd6 26.Rd2 d4 27.g4 d3 28.Kf2 b4 29.axb4
 49/82	3:11:47	 98 058 036k	8 521k	+1,72	1.Qg4 Kh8 2.Bg5 f5 3.Qf4 d5 4.Be7 dxe4 5.Bxf8 Nd7 6.Bb4 Nf6 7.Rad1 Nd5 8.Rxd5 cxd5 9.Rd1 Nc5 10.Bxc5 bxc5 11.Rxd5 Bc4 12.Rxf5 Bxa2 13.Bxe4 Re8 14.Rf8+ Rxf8 15.Qxf8+ Qg8 16.Qxc5 Qb8 17.b4 Be6 18.Kg2 Bg8 19.Bf3 Bf7 20.Kg1 Be6 21.Qe7 Bg8 22.Be4 Bc4 23.Kh2 Bg8 24.Bc6 Qb6 25.Qc5 Qb8 26.Kg2 Qc8 27.Bf3 Qb8 28.Be4 Be6 29.Qe7 Bc4 30.Qd7 Bg8 31.Qd4 Be6 32.Bf3 Bf7 33.Kh2 Be6
---------------------------------------------------------------------------
 49/79	3:14:05	 99 274 291k	8 525k	+1,14	1.Bd2 d5 2.Bb4 Rd8 3.Be7 Nd7 4.Bxd8 Rxd8 5.Qa4 Nb8 6.Nc3 Qf5 7.Re7 Qf6 8.Rae1 Nd6 9.Rxa7 Bc8 10.Rd1 Be6 11.Qd4 Qxd4 12.Rxd4 Nd7 13.a4 Ne5 14.b4 Rb8 15.Rd1 Bg4 16.Ra1 d4 17.Ne4 Nxe4 18.Bxe4 f5 19.Bg2 Rd8 20.f4 Nd3 21.b5 cxb5 22.axb5 Nc5 23.Ra8 Rxa8 24.Rxa8+ Kf7 25.Rd8 d3 26.Kf2 Ke7 27.Rd5 Bxh5 28.Ke3 Bg4 29.Rd4 Ke6 30.Rd8 Ke7 31.Rb8
 49/73	3:14:05	 99 274 291k	8 525k	+1,30	1.b3 d5 2.Ba3 Nd7 3.Bxf8 Nxf8 4.b4 Qf5 5.Nc3 Bc4 6.b5 Nc5 7.bxc6 Nd3 8.Re2 Ne6 9.Rd2 Nec5 10.Na4 Ne6 11.Qf3 Qxf3 12.Bxf3 Ng5 13.Bg2 Ne4 14.Rc2 f5 15.Nc3 Nb4 16.Rcc1 Nxc6 17.Nxe4 fxe4 18.Bxe4 Rc8 19.Bg2 Kf8 20.Rd1 Ne7 21.Rd2 b5 22.Re1 Rc6 23.a3 a5 24.Rb2 Rf6 25.f4 Rd6 26.Rd2 d4 27.g4 d3 28.Kf2 b4 29.axb4
 50/75	3:14:05	 99 274 291k	8 525k	+1,70	1.Qg4 Kh8 2.Bg5 f5 3.Qf4 d5 4.Be7 dxe4 5.Bxf8 Nd7 6.Bb4 Nf6 7.Rad1 Nd5 8.Rxd5 cxd5 9.Rd1 Nc5 10.Bxc5 bxc5 11.Rxd5 Bc4 12.Rxf5 Bxa2 13.Bxe4 Re8 14.Kg2 Be6 15.Rf8+ Rxf8 16.Qxf8+ Qg8 17.Qxc5 Qb8 18.b4 Bf7 19.Bf3 Kg8 20.Kg1 Be6 21.Qe7 Bf7 22.Kg2 Bc4 23.Kh2 Bf7 24.Qc5 Be6 25.Kg1 Kh8 26.Be4 Bf7 27.Bg6 Be6 28.Qd4 Qa8 29.Be4 Qb8 30.Bf3 Kg8 31.Kg2 Bf7 32.Bd5 Bxd5+ 33.Qxd5+ Kh7 34.Qd4 Qb7+ 35.f3 Qb5 36.Qe4+ Kh8 37.g4 Qd7

77) Solution moves are OK with backward analyze. Ng4 and Qxd2 are far superior to other moves.

FEN: r4rk1/pb3pp1/1p1qpR2/2ppN3/3P4/2P4P/PP1pQ1P1/3R2K1 w - - 0 1

Code: Select all

Stockfish_180412_matefinder:
...
 26/49	00:07	 66 431k	8 354k	+1,61	1.Qxd2 Ba6 2.Ng4 Qe7 3.Qf2 Bb5 4.Qh4 Be2 5.Nh6+ gxh6 6.Rd2 Bh5 7.Rg6+ Bxg6 8.Qxe7 Rfe8 9.Qf6 Rab8 10.g4 Kh7 11.dxc5 bxc5 12.c4 d4 13.h4 Rg8 14.g5 h5 15.Kg2 Rgc8 16.Kg3 Rb4 17.b3 Rb7 18.Rf2 Rbb8 19.Qf3
 26/31	00:07	 66 431k	8 354k	+1,89	1.Rxd2 Qd8 2.Rf4 Qg5 3.Rg4 Qh6 4.Qe1 f6 5.Ng6 Rfe8 6.Rd3 f5 7.Rgg3 e5 8.Nxe5 Re6 9.Qf2 Rf8 10.Rdf3 cxd4 11.cxd4 f4 12.Rg4 Bc8 13.Rgxf4 Ref6 14.Rxf6 Rxf6 15.Rxf6 gxf6 16.Nd3
 26/46	00:07	 66 431k	8 354k	+2,75	1.Ng4 Qe7 2.Nh6+ Kh7 3.Qh5 Qxf6 4.Ng4+ Qh6 5.Nxh6 gxh6 6.dxc5 bxc5 7.Rxd2 f5 8.Re2 Bc8 9.g4 Rg8 10.Rg2 Bd7 11.gxf5 Rxg2+ 12.Kxg2 Rg8+ 13.Kf3 Rg7 14.f6 Rg6 15.Qe5 Kg8 16.Qb8+ Kf7 17.Qxa7


Stockfish_180412_matefinder:
 32/66	01:17	 761 698k	9 839k	+2,05	1.Rxd2 Qd8 2.Rf4 Qg5 3.Rg4 Qh6 4.Rd1 Rac8 5.Rg3 f6 6.Ng6 Rfe8 7.dxc5 Rxc5 8.Rd4 Rc4 9.Kh2 Rxd4 10.cxd4 Qc1 11.Qh5 Qh6 12.Qd1 Bc6 13.Qc2 Bd7 14.Qc7 Bb5 15.b3 Qh7 16.Ne7+ Kh8 17.Nc8 Be2 18.Nd6 Rf8 19.Qxa7 Bh5 20.Qe7 Qg8 21.Re3 Rd8 22.g4 Bg6 23.Rxe6 Qf8 24.Qc7 Ra8 25.a4 Qb8
 32/57	01:17	 761 698k	9 839k	+3,90	1.Ng4 Rfc8 2.Qxd2 Kf8 3.Rxf7+ Kxf7 4.Rf1+ Ke8 5.Ne5 Ba6 6.Rf2 Qe7 7.Qd1 Kd8 8.Qh5 Rab8 9.Rf7 Rb7 10.Rxe7 Kxe7 11.dxc5 bxc5 12.Qh4+ Kd6 13.Qg3 Kc7 14.Nc4+ Kd8 15.Nd6 Rd7 16.Nxc8 Kxc8 17.Qe3 d4 18.Qxe6 Bb7 19.Qc4 Kd8 20.Qxc5 d3 21.Qg5+ Ke8 22.Qd2 Kf8 23.c4 Kg8 24.b4 Be4 25.Kf2 Rd4 26.c5 Rc4 27.a3
 32/65	01:17	 761 698k	9 839k	+4,00	1.Qxd2 Ba6 2.Ng4 Qd8 3.Nh6+ Kh7 4.Qc2+ g6 5.Ng4 Kg7 6.Re1 Qxf6 7.Nxf6 Kxf6 8.dxc5 bxc5 9.Qf2+ Kg7 10.Qxc5 Kg8 11.Qd4 Rab8 12.Qxa7 Bd3 13.Qd4 Be4 14.b4 Ra8 15.Re2 Bb1 16.b5 Bxa2 17.b6 Bc4 18.Rb2 Rfb8 19.b7 Ra1+ 20.Kh2

jdart
Posts: 4162
Joined: Fri Mar 10, 2006 4:23 am
Location: http://www.arasanchess.org

Re: Hard talkchess 2018 set - work in progress

Post by jdart » Mon Jul 16, 2018 12:48 am

A few others I have collected recently:

1r1q1r2/1pbn1ppk/2n1b2p/pQ2pN2/P1NpP3/3P2P1/1P1B1PBP/R1R3K1 b - - bm g6; c0 "Arasan-Spyderchess, FICS 2018";

r5k1/p4p1p/1pq1r1pB/1N1bP3/P1p4Q/3nR2P/5PP1/3R2K1 w - - bm Nd4; c0 "Galanov-Oliveira, CADAP-RUS ICCF 2017";

2r3k1/2b1Rpp1/p2p2qp/P7/1PpB4/2P3PP/5Q1K/8 w - - bm b5; c0 "Porozovsky-Bißmann, S-Open/6-sf08 2017";

Not sure if these qualify as "hard".

--Jon

Paloma
Posts: 1055
Joined: Thu Dec 25, 2008 8:07 pm

Re: Hard talkchess 2018 set - work in progress

Post by Paloma » Tue Jul 17, 2018 8:13 am

Vinvin wrote:
Mon Apr 23, 2018 9:24 pm
After the first version sorted out, it remains 89 regular positions (as Candidates II) and 18 special positions.
I ran this 89 positions : Stockfish_180412_x64_modern, 5 runs, 10 min per positions, 6*4GHz, 6 pieces Syzygy.
Here are the results and after that, the 89 positions.
I still have doubt about 2 to 5 positions. I'll post later.
...
I'm interrested in these 18 special positions you mentioned above.

Post Reply