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Up Topic The Rybka Lounge / Test Positions / Alternative Chess Test 2
- - By dorszcz (**) Date 2019-09-20 21:29 Upvotes 1
Alternative Chess Test 2 (ACT2) - is a collection of 100 hard chess positions. The test differs from other popular test suites. It mostly contains tricky endgame puzzles and difficult mates. The results do not always correlate with Elo rating. The test is similar to the first ACT problem set, but it is not a replacement; all positions are new. The set is quite difficult. Creating the test I paid special attention to keep it in a shape that proper solution given by engines by luck and random factor is reduced to minimum.

Conditions:
Time limit: 15 seconds per position
CPU: i5-3570 (MP engines: 4x3600 MHz, SP engines: 1x3800MHz)
Tablebases: 6-pieces Syzygy, 5-pieces Gaviota, 5-pieces (and ~80 GB of most popular 6-pieces) Nalimov, all on SSD
Strongest version of engine is used: 64 bit, POPCNT, SSE4.2 etc.
256 MB hash, no books, no learning, 50 move rule is enabled

Results:
72 out of 100 = 72%   -   Sting 14
72 out of 100 = 72%   -   Crystal 260819
69 out of 100 = 69%   -   MateFinder 260819
61 out of 100 = 61%   -   Critter 1.6a
58 out of 100 = 58%   -   Houdini 1.5a
58 out of 100 = 58%   -   Eman 4.00
56 out of 100 = 56%   -   CorChess 3.1 260819
56 out of 100 = 56%   -   Crystal-Honey X5i
52 out of 100 = 52%   -   Honey X5i
44 out of 100 = 44%   -   IvanHoe 9.46b
44 out of 100 = 44%   -   Cfish 240719
44 out of 100 = 44%   -   Stockfish 10
39 out of 100 = 39%   -   Rybka 3 Dynamic
39 out of 100 = 39%   -   AsmFishWCP_2019-07-23
39 out of 100 = 39%   -   SugaR NN 130819
36 out of 100 = 36%   -   Rybka WinFinder 2.2
33 out of 100 = 33%   -   Naum 4.6
33 out of 100 = 33%   -   Spike 1.4
33 out of 100 = 33%   -   Sting SF 3 VE
32 out of 100 = 32%   -   Deep Rybka 4
29 out of 100 = 29%   -   Fire 2.2+ xTreme GH
27 out of 100 = 27%   -   Spark 1.0
27 out of 100 = 27%   -   Wasp 3.75
26 out of 100 = 26%   -   Equinox 3.30
25 out of 100 = 25%   -   Booot 6.3.1
24 out of 100 = 24%   -   Komodo 10
22 out of 100 = 22%   -   SmarThink 1.98 (1CPU)
20 out of 100 = 20%   -   Alfil 13.1
19 out of 100 = 19%   -   Gull 3
18 out of 100 = 18%   -   Nemorino_5.00
18 out of 100 = 18%   -   RubiChess 1.5
15 out of 100 = 15%   -   Fire 7.1
15 out of 100 = 15%   -   Texel 1.08a11
14 out of 100 = 14%   -   Wasp 3.60
14 out of 100 = 14%   -   Xiphos 0.5.6
14 out of 100 = 14%   -   RofChade 2.2
13 out of 100 = 13%   -   Topple 0.7.3
13 out of 100 = 13%   -   Andscacs 0.95
13 out of 100 = 13%   -   Xiphos 0.5.3
13 out of 100 = 13%   -   Arasan 21.3
11 out of 100 = 11%   -   Stockfish 5
10 out of 100 = 10%   -   Pedone 1.9
10 out of 100 = 10%   -   Rodent III 0.273
9 out of 100 = 9%   -   Protector 1.9.0
9 out of 100 = 9%   -   Fritz 11 SE (1CPU)
8 out of 100 = 8%   -   Laser 1.7
7 out of 100 = 7%   -   Senpai 2.0
6 out of 100 = 6%   -   Marvin 3.4.0
6 out of 100 = 6%   -   iCE 3.0 (1CPU)
5 out of 100 = 5%   -   Nirvanachess 2.4
4 out of 100 = 4%   -   Amoeba 3.0
4 out of 100 = 4%   -   Bobcat 3.25
4 out of 100 = 4%   -   RofChade 2.1
1 out of 100 = 1%   -   Demolito 2019-10-29

I want to thank Dann Corbit for help, all suggestions and spending really a lot of time to verify the set.

There are 3 files:
ACT2.epd - test suite
ACT2-Analysis.epd - analyzed positions
ACT2.pgn - popular format, some analysis

http://www.mediafire.com/file/i7u0kz1t5nm9h5l/Alternative_Chess_Test_2_20.09.2019.zip/file

Have fun!
http://dorszcz.blogspot.com
Parent - - By user923005 (****) Date 2019-09-21 02:21 Upvotes 1
I tried a few engines I did not see in your list.
I used ten threads for 7 seconds at 3.2 GHz, which should be about the same.

I got:


65 out of 100 Crystal-x64-mingw
59 out of 100 Sting16
52 out of 100 Houdini 6 Tactical 1
38 out of 100 Stockfish-x64-mingw-dann
31 out of 100 Sugar
27 out of 100 Deep Rybka 4.1 SSE42 x64
17 out of 100 Komodo-13.2a-x64


For the individual problems, I saw:

problem 1: solvers=1, time spent = 108
problem 2: solvers=4, time spent = 65
problem 3: solvers=5, time spent = 51
problem 4: solvers=4, time spent = 57
problem 5: solvers=5, time spent = 52
problem 6: solvers=3, time spent = 77
problem 7: solvers=1, time spent = 108
problem 8: solvers=4, time spent = 63
problem 9: solvers=4, time spent = 63
problem 10: solvers=3, time spent = 79
problem 11: solvers=1, time spent = 114
problem 12: solvers=2, time spent = 91
problem 13: solvers=6, time spent = 31
problem 14: solvers=3, time spent = 78
problem 15: solvers=2, time spent = 99
problem 16: solvers=3, time spent = 81
problem 17: solvers=6, time spent = 37
problem 18: solvers=5, time spent = 48
problem 19: solvers=0, time spent = 126
problem 20: solvers=1, time spent = 108
problem 21: solvers=4, time spent = 63
problem 22: solvers=5, time spent = 55
problem 23: solvers=2, time spent = 92
problem 24: solvers=2, time spent = 99
problem 25: solvers=4, time spent = 65
problem 26: solvers=3, time spent = 80
problem 27: solvers=4, time spent = 65
problem 28: solvers=4, time spent = 61
problem 29: solvers=3, time spent = 80
problem 30: solvers=1, time spent = 108
problem 31: solvers=0, time spent = 126
problem 32: solvers=1, time spent = 114
problem 33: solvers=3, time spent = 78
problem 34: solvers=3, time spent = 79
problem 35: solvers=1, time spent = 108
problem 36: solvers=4, time spent = 64
problem 37: solvers=4, time spent = 73
problem 38: solvers=4, time spent = 61
problem 39: solvers=7, time spent = 22
problem 40: solvers=3, time spent = 78
problem 41: solvers=3, time spent = 81
problem 42: solvers=6, time spent = 29
problem 43: solvers=3, time spent = 76
problem 44: solvers=4, time spent = 66
problem 45: solvers=1, time spent = 114
problem 46: solvers=3, time spent = 78
problem 47: solvers=0, time spent = 126
problem 48: solvers=1, time spent = 113
problem 49: solvers=6, time spent = 38
problem 50: solvers=3, time spent = 76
problem 51: solvers=5, time spent = 50
problem 52: solvers=4, time spent = 60
problem 53: solvers=3, time spent = 83
problem 54: solvers=2, time spent = 94
problem 55: solvers=1, time spent = 112
problem 56: solvers=2, time spent = 91
problem 57: solvers=4, time spent = 66
problem 58: solvers=5, time spent = 56
problem 59: solvers=5, time spent = 56
problem 60: solvers=5, time spent = 40
problem 61: solvers=1, time spent = 108
problem 62: solvers=3, time spent = 83
problem 63: solvers=2, time spent = 97
problem 64: solvers=2, time spent = 98
problem 65: solvers=2, time spent = 91
problem 66: solvers=1, time spent = 112
problem 67: solvers=6, time spent = 26
problem 68: solvers=2, time spent = 95
problem 69: solvers=3, time spent = 74
problem 70: solvers=1, time spent = 112
problem 71: solvers=4, time spent = 57
problem 72: solvers=1, time spent = 112
problem 73: solvers=1, time spent = 108
problem 74: solvers=0, time spent = 126
problem 75: solvers=1, time spent = 110
problem 76: solvers=1, time spent = 109
problem 77: solvers=5, time spent = 42
problem 78: solvers=4, time spent = 71
problem 79: solvers=2, time spent = 97
problem 80: solvers=4, time spent = 67
problem 81: solvers=2, time spent = 96
problem 82: solvers=4, time spent = 63
problem 83: solvers=3, time spent = 81
problem 84: solvers=1, time spent = 108
problem 85: solvers=2, time spent = 93
problem 86: solvers=3, time spent = 76
problem 87: solvers=3, time spent = 82
problem 88: solvers=1, time spent = 108
problem 89: solvers=2, time spent = 94
problem 90: solvers=3, time spent = 77
problem 91: solvers=5, time spent = 49
problem 92: solvers=5, time spent = 42
problem 93: solvers=3, time spent = 83
problem 94: solvers=2, time spent = 99
problem 95: solvers=3, time spent = 84
problem 96: solvers=3, time spent = 82
problem 97: solvers=3, time spent = 75
problem 98: solvers=3, time spent = 84
problem 99: solvers=0, time spent = 126
problem 100: solvers=1, time spent = 113

Five were not solved by any engine at the stated time control. (19, 31, 47, 74, 99)
Only 1, problem 39, was solved by all seven engines.
time spent is the cumulative time to solution for all engines for that problem, with 7 seconds added if the problem was not solved.
Parent - By Akbarfan (***) Date 2019-09-21 08:46 Upvotes 1

> 17 out of 100 Komodo-13.2a-x64


Komodo 13.2a is not out yet
Parent - - By MrKris (***) Date 2019-10-14 07:26
Alternative Chess Test 2
#31

Stockfish & Lc0 have 1.Be1??, Sf 0.00.

Stockfish PV=2 has the solution 1.Bxa5! but 2nd best and flawed with 2.Qd5+?? so it says 0.00 also.

For black after 1.Bxa5!, engine restarted, Stockfish finds black lost in only 1 second.

[Event "Position #31"]
[Site "Alternative Chess Test 2"]
[Date "2019.10.14"]
[Round ""]
[White "Stockfish_19100908c0"]
[Black "Stockfish_19100908c0"]
[Result "1-0"]
[BlackElo "2200"]
[TimeControl "120+2"]
[SetUp "1"]
[FEN "1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - 0 1"]
[Termination "adjudicated"]
[PlyCount "33"]
[WhiteType "program"]
[BlackType "program"]

1. Bxa5 {Stockfish PV=2 0.00= ?? at 02:24, 46 plies; 2nd best to 1.Be1??
0.00.} (1. Be1 {?? PV=1 at 02:28, 47 plies, 0.00= Stockfish_19100908c0} Qa8
2. Qd1+ Kc4 3. Qa4+ Kd3 {--- obvious failure of search: black's king is
much safer here on d3 than in the solution a4, see below ---} 4. Qd7+ Ke4 5.
Ne7 Nc4+ 6. Kb1 Ne3 7. Nc6 Qa3 8. Qe6+ Kd3 9. Bb4 Qa4 10. Qg6+ Kc4 11. Qe4+
Kb5 12. Nd4+ Kxb4 13. Qxe3 Kc4 14. Qe2+ Kc3 15. Qf3+ Kc4 16. Qf7+ Kc3 17.
Qxc7+ Qc4 18. Ne2+ Kb4 19. Qe7+ Qc5 20. Qh4+ Qc4) 1. .. bxa5 {If solution,
1.Bxa5!, is played then Stockfish_19100908c0 finds that black is losing at
1 second!!} 2. Qd3+ Ka4 {--- obvious failure of search, black's king is in
clear danger, quasi-'stalemate' all surrounding squares are blocked or
white controlled, see above ---} 3. Ka2 Qb7 4. Qc4+ Qb4 5. Nb6+ cxb6 6. Qd3
g6 7. Qd7+ Qb5 8. Qd4+ Qb4 9. Qd3 g5 10. Qd7+ Qb5 11. Qd4+ Qb4 12. Qd3 g4
13. Qd7+ Qb5 14. Qxg4+ Qb4 15. Qd7+ Qb5 16. Qd4+ Qb4 17. Qd3 {Zugzwang +-,
Mate in 10} 1-0
ACT2 #31 (solution 1.Bxa5 bxa5 2.Qd3+! +-)
FEN: 1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - 0 1

Stockfish_19100908c0: PV=2 best at bottom; i7-4770K threads=6 ---------------------------------------------------------------------------
 46/15  02:24   1,048,802k  7,276k   0.00  1.Bxa5 bxa5 2.Qd5+?? Kc2 3.Qe4+ Kc3 4.Qe1+ Kc2
 46/29  02:24   1,048,802k  7,276k   0.00  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd5 4.Qd7+ Ke4 5.Ne7 Nc6+ 6.Kb2 Nxe7 7.Qxe7+ Kd3 8.Qd7+ Kc4 9.Qg4+ Kc5 10.Qb4+ Kd5 11.Qb3+ Kd6 12.Qg3+ Ke6 13.Qh3+ Kf6 14.Qf1+ Ke6

Lc0-0.22.0_42872: PV=1 threads=2 + RTX 2060
 24/48  02:27   5,087k  22k  +0.23  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd5 4.Qd7+ Ke4 5.Qg4+ Kd3 6.Qd7+ Ke4 7.Qg4+ Kd3 8.Qg3+ Ke2 9.Qf2+ Kd3 10.Qf1+ Kd4 11.Qf2+ Kd3 12.Qd2+ Kc4 13.Qb4+ Kd3 14.Qc3+ Ke2 15.Qd2+ Kf3 16.Qf2+ Kg4 17.Qh4+ Kf5 18.Qh7+ Kf4 19.Bd2+ Kg3 20.Qxg7+ Kf2 21.Qd4+ Kg2 22.Qg4+ Kf2 23.Qh4+


After 1.Bxa5, engines restarted, both PV=1:
FEN: 1qNQ4/2p3p1/1p6/B7/8/1k6/8/K7 b - - 0 1

Stockfish_19100908c0:
... 31/12  00:01   9,474k  7,665k   0.00  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc2+ Kb5 5.Qb3+ Ka6 6.Qe6+ Kb5
>>> 32/46  00:01   13,371k  7,743k  -148.95  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ Qb5 14.Qxg4+ Qb4 15.Qd7+ Qb5 16.Qd4+ Qb4 17.Qd3 Qd2+ 18.Qxd2 Kb5 19.Qd7+ Kc4 20.Qc6+ Kd4 21.Qxb6+ Ke4 22.Qxa5 Kf4 23.Kb2 Kg4
... 58/56  00:03   29,928k  8,635k  -148.95  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ Qb5 14.Qxg4+ Qb4 15.Qd7+ Qb5 16.Qd4+ Qb4 17.Qd3 Qd2+ 18.Qxd2 Kb5 19.Qd5+ Ka6 20.Qd7 b5

Lc0-0.22.0_42872:
 12/26  00:03   97k  28k  -0.15  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qd1+?? Kb5 5.Qe2+ Kc5 6.Qe3+ Kc4 7.Qe2+ Kd4 8.Qf2+ Ke5 9.Qg3+ Kf6 10.Qf4+ Ke6


#31 FEN: 1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - 0 1
Komodo MCTS-13.1: PV=6 6ths ---------------------------------------------------------------------------
 20/19  09:10   15k  26  -1.52  1.Qd4
 20/19  09:10   15k  26  -1.44  1.Qd2
 20/19  09:10   15k  26   0.00  1.Be7 Kc2 2.Qd5 Qxc8 3.Qa2+ Kd3
 20/19  09:10   15k  26   0.00  1.Bf8 Kc2 2.Qd5 Qxc8 3.Qg2+ Kc3 4.Qb2+
 20/19  09:10   15k  26   0.00  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Qc4+?? Qb4 4.Qxc7
 20/19  09:10   15k  26  +0.04  1.Be1 Qa8 2.Qd3+ Ka4 3.Ne7 Qh1 4.Qe2 Qh3 5.Qe4+ Kb5 6.Nd5 Qa3+ 7.Kb1 Qb3+ 8.Kc1 Qc4+ 9.Nc3+ Kc5 10.Qe7+ Kc6

Lc0-0.22.0_J20-460 2ths + RTX 2060:
 29/65  09:07   19,128k  35k  +0.29  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd3 4.Qd7+ Ke4 5.Qg4+ Kd3 6.Qg3+ Ke2 7.Qf2+ Kd3 8.Qd2+ Kc4 9.Qb4+ Kd5 10.Qb5+ Kd4 11.Qb2+ Kc5 12.Qe5+ Qd5 13.Qxc7+ Nc6 14.Qxb6+ Kc4 15.Qa6+ Kd4 16.Nb6 Qb3 17.Bf2+ Ke4 18.Qe2+ Kf5 19.Nc4 Qc3+ 20.Kb1 Qb3+ 21.Kc1 Qc3+ 22.Kb1 Qb3+ 23.Kc1 Qc3+ 24.Kd1 Qa1+ 25.Kd2 Qa2+ 26.Ke1 Qxe2+ 27.Kxe2
Parent - - By dorszcz (**) Date 2019-10-15 10:16
Did you test Lc0 with whole set?
Parent - - By MrKris (***) Date 2019-10-16 04:34
No.
Is " Arasan EPD Tester v1.0" good for testing EPDs?
Parent - - By dorszcz (**) Date 2019-10-16 06:16
I don't know. I can't find anything in google. Can you post a link to it?
Parent - - By MrKris (***) Date 2019-10-17 08:54
Its from 2015. Sorry I have not had time to try it yet.
http://www.talkchess.com/forum3/viewtopic.php?f=2&t=58712&start=10
The links work.

EPD testsuite: Arena seems to work with Stockfish but most engines stall.

The script in the thread looks interesting too, but I do not have Python 3 yet.

I've made a couple of .bin books for myself with Polyglot, I will probably try that also, hopefully soon.

What EPD testing software do you use?
Parent - By dorszcz (**) Date 2019-10-17 12:14 Upvotes 1
Arena, Fritz.
Parent - - By user923005 (****) Date 2019-10-15 21:56
The problem (ACT2.031) is a mate in 26:
1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - acd 95; acs 3210; bm Bxa5; c3 "Bxa5"; ce 32716; dm 26; aid ACT2.031; id "ACT2.031"; pm Bxa5;
pv Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Nb6+ cxb6 Qd3 g6 Qd7+ Qb5 Qd4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 g4 Qd7+ Qb5 Qxg4+ Qb4 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qc3+ Kb5 Ka3 Ka6 Qc6 Ka7 Ka4 Kb8 Kb5 Ka7 Qxb6+ Ka8 Kc6 a4 Qb7+;

A lot of engines have trouble with this one, and you can see that the solution time was almost an hour in the above analysis.
Houdini 6 Tactical with Nalimov files finds the key move quickly, but it still takes a while to resolve to checkmate.

Here is the result after two minutes:

FEN:
1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - 0 1


Houdini 6 Tactical 1 Nalimov:
10/47  00:00     3,527,525  22,326,000  +0.44  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qb4+ Kd5 Qb5+ Kd4 Qd7+ Qd5 Qxc7 Nb3+ Kb1 Qe4+ Kb2 Qe2+ Ka3
11/47  00:00     4,001,670  22,355,000  +0.44  Be1 Qa8 Qd1+ Kc4 Qa4+ Kd5 Qd7+ Ke4 Ne7 Nc4+ Kb1 Ne3 Nc6 Qa3 Qe6+ Kd3 Bb4 Qa4 Qg6+ Kc4 Qe4+ Kb5
12/48  00:00     6,992,033  21,850,000  +0.19  Be1 Qa8 Qd1+ Kc4 Qa4+ Kd5 Qd7+ Ke4 Ne7 Nc4+ Kb1 Ne3 Qe6+ Kd3 Nc6 Qa3 Bb4 Qa4 Qg6+ Kc4 Qe4+ Kb5 Nd4+ Kxb4 Qxe3 c5 Qe1+ Kc4 Nc2 Kd5 Qd2+ Kc6
13/54  00:00     9,017,212  21,267,000  +0.36  Be1 Qa8 Qd3+ Ka4 Ne7 Qh1 Qe2 Qh3 Qe4+ Kb5 Bxa5 Qa3+ Kb1 Qb3+ Kc1 Kxa5 Nc6+ Ka6 Kd2 b5 Ne5 Qb2+ Ke3
14/54  00:00    14,768,136  21,403,000   0.00  Be1 Qa8 Qd1+ Kc4 Qa4+ Kd5 Qd7+ Ke4 Qe8+ Kf3 Qh5+ Kg2 Qe2+ Kh1 Qf1+ Kh2 Qf4+ Kg2 Qg3+ Kh1 Qh4+
15/54  00:00    17,461,333  21,610,000   0.00  Be1 Qa8 Qd1+ Kc4 Qa4+ Kd5 Qd7+ Ke4 Qe8+ Kf3 Qh5+ Kg2 Qe2+ Kh1 Qf1+ Kh2 Qf4+ Kg2 Qg3+ Kh1 Qh3+
16/54  00:00    20,992,721  21,709,000   0.00  Be1 Qa8 Qd1+ Kc4 Qa4+ Kd5 Qd7+ Ke4 Qe8+ Kf3 Qh5+ Ke3 Qe5+ Kf3 Qc3+ Kg2 Qg3+ Kh1 Qh3+ Kg1 Qg4+ Kf1 Qd1 Nc4+ Ba5+ Kg2 Qc2+ Kg1 Qb1+
17/58  00:01    28,079,405  21,716,000  +0.09  Be1 Qa8 Qd1+ Kc4 Qa4+ Kd5 Qd7+ Ke4 Ne7 Nc4+ Kb1 Ne3 Qe6+ Kd3 Nc6 Qa3 Bb4 Qa4 Qg6+ Kc4 Qe4+ Kb5 Nd4+ Kxb4 Qxe3 c5 Qd2+ Kc4 Nc2 Qb3+ Kc1
18/65  00:02    52,134,914  20,421,000  +0.05  Be1 Qa8 Qd3+ Ka4 Qd4+ Kb5 Qd7+ Ka6 Qxc7 Qb7 Qxb7+ Kxb7 Nd6+ Kc6 Ne8 g6 Kb2 Nc4+ Kc3 Ne3 Ng7 Ng4 Bh4 Kd5 Ne8
19/65  00:06   128,380,010  20,284,000  +0.06  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Kb2 b5 Kb3 Kb6 Ne4 g4 Nf6 b4 Nxg4
19/65  00:06   131,287,953  20,294,000  +0.06  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Kb2 b5 Kb3 Kb6 Ne4 g4 Nf6 b4 Nxg4
20/65  00:07   152,532,689  20,370,000  +0.05  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Kb2 b5 Bf2 b4 Kb3 Ka5 Be3 g4 Bf2 g3 Bxg3 Nd4+ Kc4
20/65  00:07   156,337,334  20,374,000  +0.05  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Kb2 b5 Bf2 b4 Kb3 Ka5 Be3 g4 Bf2 g3 Bxg3 Nd4+ Kc4
21/65  00:11   228,733,178  20,335,000   0.00  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Ne4 b5 Kb1 b4 Nxg5 Kb5 Ne4 Kc4 Bg3 Kd3 Nf6
21/65  00:13   274,142,585  20,455,000   0.00  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Ne4 b5 Kb1 b4 Nxg5 Kb5 Ne4 Kc4 Bg3 Kd3 Nf6
22/65  00:15   311,604,093  20,348,000   0.00  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Ne4 b5 Kb1 b4 Nxg5 Kb5 Ne4 Kc4 Bg3
22/65  00:15   320,486,812  20,372,000   0.00  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Ne4 b5 Kb1 b4 Nxg5 Kb5 Ne4 Kc4 Bg3
23/65  00:17   357,872,824  20,444,000   0.00  Be1 Qa8 Qd1+ Kc4 Qe2+ Kd4 Qb2+ Kc4 Qc3+ Kb5 Qe5+ Ka6 Qxc7 Qc6 Qxc6 Nxc6 Nd6 g5 Ne4 g4 Kb1 Kb5 Nf6 Kc4 Nxg4 b5 Bd2 b4 Kc2 Nd4+ Kb2 Nc6 Be1 Kb5 Ne3
23/65+  00:18   377,975,182  20,490,000  +0.07  Bxa5
23/65+  01:10  1,425,105,781  20,294,000  +3.08  Bxa5
23/73  01:15  1,533,881,651  20,318,000  +3.83  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g6 Qd7+ Qb5 Qd4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 g4 Qd7+ Qb5 Qxg4+ Qb4 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qa3+ Qxa3+ Kb5 Qb3+ Kc5 Qc2+ Kd6 Qd3+ Kc5 Kb3 b5
23/73  01:15  1,540,257,715  20,318,000  +3.83  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g6 Qd7+ Qb5 Qd4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 g4 Qd7+ Qb5 Qxg4+ Qb4 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qa3+ Qxa3+ Kb5 Qb3+ Kc5 Qc2+ Kd6 Qd3+ Kc5 Kb3 b5
24/73+  01:17  1,567,928,474  20,329,000  +3.90  Bxa5
24/73+  01:17  1,576,579,766  20,331,000  +3.97  Bxa5
24/73+  01:30  1,836,844,769  20,395,000  +18.39  Bxa5
24/73-  01:30  1,840,066,984  20,394,000  +15.65  Bxa5 bxa5
24/79-  01:30  1,850,123,424  20,385,000  +10.68  Bxa5 bxa5
24/79  01:35  1,958,193,214  20,420,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kc6 Qxg5 Kb7 Ka2 Kc6 Qg2+ Kd6 Qg3+ Kc6 Qg6+ Kb5 Qd3+ Kc5 Qf5+ Kc6 Qc8+ Kd6 Qb7 Kc5 Qc7+ Kb5 Qd7+ Kb4 Qg4+ Kc3 Qg7+
24/79  01:35  1,958,234,314  20,420,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kc6 Qxg5 Kb7 Ka2 Kc6 Qg2+ Kd6 Qg3+ Kc6 Qg6+ Kb5 Qd3+ Kc5 Qf5+ Kc6 Qc8+ Kd6 Qb7 Kc5 Qc7+ Kb5 Qd7+ Kb4 Qg4+ Kc3 Qg7+
25/79-  01:36  1,963,060,755  20,419,000  +85.13  Bxa5 bxa5
25/79  01:38  2,010,751,434  20,422,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg7+ Kc6 Qg6+ Kb5 Qd3+ Kc5 Qf5+ Kc6 Qf3+ Kb5 Qe2+ Kc6
25/79  01:38  2,010,766,721  20,422,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg7+ Kc6 Qg6+ Kb5 Qd3+ Kc5 Qf5+ Kc6 Qf3+ Kb5 Qe2+ Kc6
26/79  01:40  2,063,213,340  20,441,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg7+ Kc6 Qg6+ Kb5
26/79  01:41  2,070,305,654  20,443,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg7+ Kc6 Qg6+ Kb5
27/79  01:43  2,116,536,518  20,446,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg2+ Kc7 Qg7+ Kd6 Qb7 Kc5 Qe7+ Kc6 Qf6+ Kb7 Qf3+ Kc7
27/79  01:43  2,124,354,168  20,448,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg2+ Kc7 Qg7+ Kd6 Qb7 Kc5 Qe7+ Kc6 Qf6+ Kb7 Qf3+ Kc7
28/79  01:46  2,178,209,613  20,440,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg2+ Kc7 Qg7+ Kd6 Qb7 Kc5 Qe7+ Kc6 Qf6+ Kb7
28/79  01:47  2,188,865,637  20,436,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg2+ Kc7 Qg7+ Kd6 Qb7 Kc5 Qe7+ Kc6 Qf6+ Kb7
29/79  01:52  2,297,897,307  20,421,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg2+ Kc7 Qg7+ Kd6 Qb7 Kc5 Qe7+ Kc6 Qf6+ Kb7
29/79  01:53  2,308,893,062  20,418,000  +85.20  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qb2+ Kxb2 Kb4 Qb3+ Kc5 Qe3+ Kb5 Qxg5+ Kc6 Ka2 Kb7 Qg2+ Kc7 Qg7+ Kd6 Qb7 Kc5 Qe7+ Kc6 Qf6+ Kb7
30/83  01:56  2,376,521,777  20,404,000  +86.00  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qa3+ Qxa3+ Kb5 Qd3+ Kc6 Qg6+ Kb7 Qxg5 Kc6 Qg2+ Kc5 Qb7 b5 Qc7+ Kd5 Qb6 Ke5 Qxa5 Kf6 Qxb5 Kg7 Qg5+ Kh7 Ka3 Kh8 Qh6+ Kg8 Kb2
30/83  01:57  2,391,521,666  20,396,000  +86.00  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qa3+ Qxa3+ Kb5 Qd3+ Kc6 Qg6+ Kb7 Qxg5 Kc6 Qg2+ Kc5 Qb7 b5 Qc7+ Kd5 Qb6 Ke5 Qxa5 Kf6 Qxb5 Kg7 Qg5+ Kh7 Ka3 Kh8 Qh6+ Kg8 Kb2
31/83  02:01  2,472,670,171  20,434,000  +86.80  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qa3+ Qxa3+ Kb5 Qd3+ Kc6 Qg6+ Kb7 Qxg5 Kc6 Qg2+ Kc5 Qg1+ Kb5 Qc1 Kb4 Qc7 a4 Qc6 a3 Qxb6+ Kc4 Kxa3
31/83  02:01  2,491,014,448  20,439,000  +86.80  Bxa5 bxa5 Qd3+ Ka4 Ka2 Qb7 Qc4+ Qb4 Qc6+ Qb5 Nb6+ cxb6 Qe4+ Qb4 Qd3 g5 Qd7+ Qb5 Qd4+ Qb4 Qd3 Qa3+ Qxa3+ Kb5 Qd3+ Kc6 Qg6+ Kb7 Qxg5 Kc6 Qg2+ Kc5 Qg1+ Kb5 Qc1 Kb4 Qc7 a4 Qc6 a3 Qxb6+ Kc4 Kxa3
Attachment: Houdini-Analysis.txt - After an hour and five minutes, Houdini has the position resolved to a mate in 29 so far. (15k)
Parent - - By MrKris (***) Date 2019-10-16 05:53
Thanks for the Houdini 6 Tactical info.!

Actually, as in my post, its a Zugzwang in 17, 17.Qd3 black loses its queen to not get mated at once, then mate in 10, including 17.Qd3, because its queen vs. 2 pawns.

My point is that Stockfish can not be even looking at 1.Bxa5 correctly, see * below, probably letting black's king escape roughly like its preferred -the PV in my diagram- 1.Be1?? Qa8 {destroying white's theme} 2.Qd1+ Kc4 3.Qa4+ Kd3.
Your H6 Tactical at least 'kept 1.Bxa5 in mind' while it preferred 1.Be1?? for the first 17 seconds.

Driving the black king into the safe open center with 1.Be1 through 3.Qa4+ is the exact opposite of the solution:
1.Be1?? PV: white queen inactive on a4 - black king safe, most of the king ring not attacked/blocked, in the open center on d3 - both against general chess principals;
Solution: white queen active in the center (for example 'Queen and Pawn Endings' by Averbach) - black king in danger trapped, king ring all attacked/blocked, on the a-file - both good general chess principals.

Of course it is not uncommon, but Stockfish 'cold start' from after 1.Bxa5 realizes its a tablebase queen down loss (148.92) in only 5 seconds, output below.

My point is that after 1...bxa5 Sf very quickly knows how to attack the black king - so I suspect a flaw in white's search * because Sf has the code for a good king attack, as it demonstrates:
35/27  00:03   29,516k  9,406k   0.00  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Qc6+ Qb5 6.Qe4+ Qb4 7.Qe8+ Qb5 8.Nb6+ cxb6 9.Qe4+ Qb4 10.Qc6+ Qb5 11.Qe4+
...  36/53-  00:05   56,282k  9,583k  -148.92  1. ... bxa5 2.Qd3+

Note ply 36 is 18 moves when white has won black's queen.
_
After 1.Bxa5: FEN: 1qNQ4/2p3p1/1p6/B7/8/1k6/8/K7 b - - 0 1 

Stockfish_19100908c0:

 1/1  00:00   426  213k  -1.13  1. ... bxa5 2.Qd3+ Ka4
 2/3  00:00   935  468k  -1.35  1. ... bxa5 2.Qd3+ Ka4
 3/5  00:00   1k  729k  -1.36  1. ... bxa5 2.Qd3+ Ka4 3.Qc2+ Ka3
 4/7  00:00   2k  928k  -0.70  1. ... bxa5 2.Qd3+ Ka4 3.Qc2+ Qb3
 5/8  00:00   4k  626k  -0.80  1. ... bxa5 2.Qd3+ Ka4 3.Qc2+ Qb3 4.Qxc7 g5
 6/10  00:00   5k  530k  -0.76  1. ... bxa5 2.Qd3+ Ka4 3.Qc4+ Qb4 4.Qxc7
 7/11  00:00   17k  874k  -0.36  1. ... bxa5 2.Qd3+ Ka4 3.Qc4+ Qb4 4.Qc2+ Qb3
 8/15  00:00   28k  1,036k  -0.04  1. ... bxa5 2.Qd3+ Ka4 3.Qc4+ Qb4 4.Qc2+ Qb3 5.Qxc7 g5
 9/16  00:00   59k  1,470k   0.00  1. ... bxa5 2.Qd5+ Kc2 3.Qg2+ Kd1 4.Qd5+
 10/17  00:00   98k  1,847k  -1.20  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc2+ Kb5 5.Ne7 Ka6 6.Qg6+ c6 7.Nxc6 Qb5 8.Nd4+ Qb6
 11/24  00:00   175k  2,304k  -0.95  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qd1+ Kb5 5.Ne7 Qg2+ 6.Ka1 Ka6 7.Nd5 Kb7 8.Qb3+ Kc6
 12/26  00:00   197k  2,437k  -0.30  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qd1+ Kb5 5.Qb3+ Ka6 6.Qc4+ Qb5 7.Qe6+ Kb7 8.Ne7 Qc5 9.Qb3+ Ka6 10.Nd5 Ka7
 13/31  00:00   310k  3,044k   0.00  1. ... bxa5 2.Qd5+ Kc3 3.Qc5+ Kb3 4.Qd5+
...                            (all 0.00) ...
 35/27  00:03   29,516k  9,406k   0.00  1. ... bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Qc6+ Qb5 6.Qe4+ Qb4 7.Qe8+ Qb5 8.Nb6+ cxb6 9.Qe4+ Qb4 10.Qc6+ Qb5 11.Qe4+
 36/27-  00:03   30,228k  9,426k  -0.10  1. ... bxa5 2.Qd3+
 36/27-  00:03   30,433k  9,431k  -0.20  1. ... bxa5 2.Qd3+
 36/53-  00:05   56,282k  9,583k  -148.92  1. ... bxa5 2.Qd3+

Parent - - By user923005 (****) Date 2019-10-16 18:06 Upvotes 1
Various engines:

Analysis of Q:\dm26b.epd  
Analyzing engine: Houdini 6 Tactical 1 Nalimov
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4xa5  * 18 Seconds
1 of 1 matching moves
2019-10-15 6:13:22 PM, Total time: 1:39:00 AM Rated time: 07:20 = 440 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: AsmFishWCP_2019-07-22_popcnt
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4xa5  * 46 Seconds
1 of 1 matching moves
2019-10-15 4:56:11 PM, Total time: 12:21:49 AM Rated time: 00:46 = 46 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Critter_1.6a_64bit
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4xa5  * 5 Seconds
1 of 1 matching moves
2019-10-15 5:07:08 PM, Total time: 12:32:45 AM Rated time: 00:05 = 5 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Fire_7.1_x64_popcnt
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4-e1  
0 of 1 matching moves
2019-10-15 5:18:04 PM, Total time: 12:43:42 AM Rated time: 10:50 = 650 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Komodo-13.2a-x64
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4-e1  
0 of 1 matching moves
2019-10-15 5:29:02 PM, Total time: 12:54:39 AM Rated time: 10:50 = 650 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Nirvanachess 2.4 (64-Bit Popcount)
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4-e1  
0 of 1 matching moves
2019-10-15 5:39:59 PM, Total time: 1:05:37 AM Rated time: 10:50 = 650 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Protector 1.9.0 TCEC S8.3
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4-e1  
0 of 1 matching moves
2019-10-15 5:51:23 PM, Total time: 1:17:01 AM Rated time: 10:50 = 650 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Stockfish-x64-mingw-dann
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4xa5  * 341 Seconds
1 of 1 matching moves
2019-10-15 6:02:25 PM, Total time: 1:28:03 AM Rated time: 05:41 = 341 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Sting17m
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4xa5  * 440 Seconds
1 of 1 matching moves
2019-10-15 6:13:22 PM, Total time: 1:39:00 AM Rated time: 07:20 = 440 Seconds

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

Analysis of Q:\dm26b.epd  
Analyzing engine: Polygon-mingw
2019-10-15 4:34:22 PM Level: 650 Seconds
   Source                    : List of EPD/PGN files
      Q:\dm26b.epd
   Colours                   : White moves=True, Black moves=True
   Direction                 : forward
   Games (PGN)               : From 1 to 999999
   Moves                     : From 1 to 250
   Positions (EPD)           : From 1 to 999999
   Use Engine(s)             : List
      Houdini 6 Tactical 1 Nalimov
      AsmFishWCP_2019-07-22_popcnt
      Critter_1.6a_64bit
      Fire_7.1_x64_popcnt
      Komodo-13.2a-x64
      Nirvanachess 2.4 (64-Bit Popcount)
      Protector 1.9.0 TCEC S8.3
      Stockfish-x64-mingw-dann
      Sting17m
      Polygon-mingw
   Use seconds per move      : 650 Seconds per move
   Analysis Lines            : Minimum search depth=1
   Activate abort analysis   : False
  1) Bb4xa5, Bb4xa5     Bb4-e1  
0 of 1 matching moves
2019-10-15 6:24:24 PM, Total time: 1:50:02 AM Rated time: 10:50 = 650 Seconds
Parent - By MrKris (***) Date 2019-10-18 00:49
Great, thanks!

[Event "contempt 0 or -24"]
[Site "Move in 15 mins."]
[Date "2019.10.16"]
[Round "ACT 2, 31"]
[White "i7-4770K"]
[Black "RTX 2060"]
[Result "*"]
[BlackElo "2200"]
[Time "23:30:41"]
[WhiteElo "2200"]
[TimeControl "0+900"]
[SetUp "1"]
[FEN "1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - 0 1"]
[Termination "unterminated"]
[PlyCount "1"]
[WhiteType "program"]
[BlackType "program"]

{-- first 1.Bxh5} 1. Be1 {+0.59/25 173 -NN's will not obey time/move level- Allie-0.5_42700}
(1. Be1 {+0.21/24 400 LcO-O.22.0_42872})
(1. Be1 {+0.46/33 389 LcO-O.22.0_50783})
(1. Bxa5 {+M32/29 254 Crystal-190824C-24 -- 00:31})
(1. Bxa5 {+M29/33 899 Crystal-190824c0 -- 00:12})
(1. Bxa5 {+M26/76 899 Stockfish_191009008c0 -- 07:22})
(1. Bxa5 {+M26/78 899 Stockfish_191009008C-24 -- 05:54})
(1. Bxa5 {+153.08/70 899 asmFishWCP_2019-10-16_bmi2 -- 02:47})
(1. Bxa5 {+153.08/70 899 asmFishWCP_2019-10-16c0 -- 06:26})
(1. Bxa5 {+153.08/69 899 asmFishWCP_2019-10-16C-24 -- 08:31}) *

Crystal-190824c0 -- 00:12
Crystal-190824C-24 -- 00:31
asmFishWCP_2019-10-16_bmi2 -- 02:47
Stockfish_191009008C-24 -- 05:54
asmFishWCP_2019-10-16c0 -- 06:26
Stockfish_191009008c0 -- 07:22
asmFishWCP_2019-10-16C-24 -- 08:31
                                                                                                .
                                                                                                .
FEN: 1qNQ4/2p3p1/1p6/n7/1B6/1k6/8/K7 w - - 0 1 
i7-4770K 1GBhash / RTX 2060 Syzygy6

Lc0-0.22.0_42872:
 1/2  00:00   7  500  +0.41  1.Bxa5 bxa5
 2/3  00:00   16  1k  +0.62  1.Be1 Qa8 2.Qd3+
... all "0.00 1.Be1" ...
 36/81  15:09   49,830k  55k  +0.50  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd3 4.Qd7+ Ke4 5.Qg4+ Kd3 6.Qd1+ Kc4 7.Qa4+ Kd3 8.Qd7+ Ke4 9.Qg4+ Kd3 10.Qg3+ Ke2 11.Qf2+ Kd3 12.Qf1+ Ke3 13.Bf2+ Kd2 14.Be1+ Ke3 15.Qf2+ Kd3 16.Qd2+ Kc4 17.Qb4+ Kd5 18.Qb5+ Kd4 19.Qb2+ Kc5 20.Qe5+ Qd5 21.Qxc7+ Nc6 22.Qxb6+ Kc4 23.Qa6+ Kd4 24.Kb2 Qg2+ 25.Kc1 Qg5+ 26.Bd2 Qc5+ 27.Kd1 Qh5+ 28.Kc2 Qc5+ 29.Kb2 Ne5 30.Nd6 Kd5 31.Nb5 Nc4+ 32.Kc2 Nxd2+ 33.Nc3+ Ke5

Crystal-190824C-24:
 1/1  00:00   655  328k  +2.02  1.Qf8
 2/2  00:00   5k  2,282k  +1.31  1.Bf8 Kc2 2.Bxg7
 3/4  00:00   9k  4,551k  +1.29  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Qc2+ Ka3
 4/6  00:00   11k  3,800k  +1.29  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Qc2+ Ka3
 5/8  00:00   25k  4,162k  +1.92  1.Be1 Ka3 2.Kb1 Nb3 3.Bc3
... all 1.Be1 ...
28/38  00:19   182,620k  9,147k   0.00  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd3 4.Qd7+ Ke4 5.Ne7 Nc6+ 6.Kb2 Nxe7 7.Qxe7+ Kd3 8.Qd7+ Kc4 9.Qg4+ Kc5 10.Bf2+ Kd6 11.Qg6+ Ke7 12.Qxg7+ Kd6 13.Bg3+ Kc6 14.Qd4 Qg8 15.Qc3+ Kb5 16.Qf3 Qc4 17.Qd1 Ka6 18.Qe1 Qd5 19.Bxc7
 29/38+  00:30   277,974k  9,081k  +0.58  1.Bxa5
>>>>> 29/38+  00:31   285,027k  9,077k  +0.69  1.Bxa5
--not shown: eval. increases very rapidly until next output line--
>>>>> 29/82+  00:53   537,086k  9,950k  +147.26  1.Bxa5
 29/82  00:59   597,420k  10,121k  +148.68  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Kb3 Kc6 15.Qc1+ Kd6 16.Qxg5 Ke6 17.Qg6+ Kd5 18.Qxb6 a4+ 19.Ka3 Ke4 20.Qb5 Ke3 21.Qg5+ Ke2 22.Kxa4 Kd1 23.Kb3 Ke2 24.Qg4+ Kd3 25.Qf3+ Kd4 26.Qc3+ Ke4 27.Ka2 Kf4 28.Qc5 Kg3 29.Qg5+ Kf2
 30/39+  01:01   623,983k  10,167k  +148.79  1.Bxa5
 30/39+  01:01   624,551k  10,168k  +148.90  1.Bxa5
 30/48+  01:04   655,128k  10,230k  +M71  1.Bxa5
 30/91  01:06   679,687k  10,284k  +M41  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Kb3 Kc6 15.Qc1+ Kd5 16.Qxg5+ Ke4 17.Qg6+ Kf4 18.Qxb6 a4+ 19.Kxa4 Kf3 20.Qf6+ Kg3 21.Qg5+ Kf2 22.Qf4+ Kg1 23.Qf6 Kg2 24.Qg6+ Kf3 25.Qf5+ Kg2 26.Ka3 Kh1 27.Qf3+ Kh2 28.Kb3 Kg1 29.Qg3+ Kf1
 31/91  04:14   2,876,531k  11,318k  +M41  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Kb3 Kc6 15.Qc1+ Kd5 16.Qxg5+ Ke4 17.Qg6+ Kf4 18.Qxb6 a4+ 19.Kxa4 Kf3 20.Qf6+ Kg3 21.Qg5+ Kf2 22.Qf4+ Kg1 23.Qf6 Kg2 24.Qg6+ Kf3 25.Qf5+ Kg2 26.Ka3 Kh1 27.Qf3+ Kh2 28.Kb3 Kg1 29.Qg3+ Kf1
 29/99  04:14   2,876,531k  11,318k  +M32  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Kb3 Kc6 15.Qc1+ Kd6 16.Qxg5 Ke6 17.Qg6+ Kd5 18.Qxb6 a4+ 19.Ka3 Ke4 20.Qf2 Ke5 21.Kxa4 Kd6 22.Qf6+ Kd5 23.Qe7 Kc6 24.Kb4 Kd5 25.Qe8 Kd4 26.Qe6 Kd3 27.Kb3 Kd4 28.Qf5 Ke3 29.Kc3 Ke2 30.Qf4 Ke1

Crystal-190824c0: Found 510 tablebases
 1/1  00:00   587  294k  +2.11  1.Qf8
 2/2  00:00   6k  2,814k  +1.40  1.Bf8 Kc2 2.Bxg7
 3/4  00:00   9k  2,872k  +1.34  1.Bxa5 bxa5 2.Qd3+ Ka4
 4/6  00:00   11k  3,814k  +1.34  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Qc2+ Ka3
 5/8  00:00   16k  4,014k  +1.53  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb4 4.Qd7+ Qb5
 6/8  00:00   26k  2,381k  +1.91  1.Be1 Ka3 2.Qe7+ c5 3.Bxa5 bxa5 4.Qxc5+ Qb4
... all 1.Be1 ...
 24/59  00:09   76,193k  8,069k   0.00  1.Be1 Qa8 2.Qd3+ Ka4 3.Ne7 Qh1 4.Qe2 Qh3 5.Qe4+ Kb5 6.Nd5 Qa3+ 7.Kb1 Qb3+ 8.Kc1 Kc6 9.Nf4+ Kb5
 25/39+  00:12   100,467k  8,199k  +0.10  1.Bxa5
>>>>> 25/39+  00:12   102,369k  8,202k  +0.21  1.Bxa5
>>>>> 25/46+  00:19   172,495k  8,787k  +52.02  1.Bxa5
...
 27/39+  00:24   233,705k  9,487k  +96.35  1.Bxa5
 27/65  00:26   250,239k  9,613k  +98.53  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Qb3+ Kc6 15.Qe6+ Kc5 16.Qe7+ Kd4 17.Qxg5 Kc4 18.Qg4+ Kc5 19.Qg6 b5 20.Qg5+ Kb6 21.Ka3 Kc6 22.Qd8 Kb7 23.Qxa5 Kc6 24.Qd8 Kc5 25.Kb3
...
 31/53+  00:36   377,046k  10,243k  +99.85  1.Bxa5
 31/66+  00:39   408,078k  10,368k  +M91  1.Bxa5
 31/128  06:27   4,515,705k  11,648k  +M29  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Qc3 g4 15.Kb3 a4+ 16.Ka3 g3 17.Qxg3 Kc4 18.Kxa4 Kd4 19.Qf3 Kc4 20.Qe4+ Kc5 21.Qb4+ Kd5 22.Kb5 Ke5 23.Qg4 Kd6 24.Kxb6 Ke7 25.Qf4 Ke6 26.Kc6 Ke7 27.Qf5 Ke8 28.Kd6 Kd8 29.Qd7+
 32/79  07:42   5,388,241k  11,649k  +M29  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Qd6 g4 15.Kb3 a4+ 16.Ka3 Kc4 17.Qxb6 Kd5 18.Qg6 g3 19.Qxg3 Ke4 20.Qg4+ Kd5 21.Kxa4 Kc6 22.Kb3 Kd6 23.Kb4 Kc7 24.Kb5 Kd6 25.Qe4 Kd7 26.Kc5 Kc8 27.Kc6 Kb8 28.Qb4+ Kc8 29.Qf8+
 33/79  15:00   10,525,798k  11,695k  +M29  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Qd6 g4 15.Kb3 a4+ 16.Ka3 Kc4 17.Qxb6 Kd5 18.Qg6 g3 19.Qxg3 Ke4 20.Qg4+ Kd5 21.Kxa4 Kc6 22.Kb3 Kd6 23.Kb4 Kc7 24.Kb5 Kd6 25.Qe4 Kd7 26.Kc5 Kc8 27.Kc6 Kb8 28.Qb4+ Kc8 29.Qf8+


Stockfish_19100908c0: Found 510 tablebases
 1/1  00:00   590  590k  +2.08  1.Qf8
 2/2  00:00   2k  2,017k  +2.27  1.Bf8 c6
 3/4  00:00   3k  1,734k  +1.49  1.Bf8 c5 2.Bxg7
 4/5  00:00   5k  2,516k  +3.15  1.Bf8
 5/8  00:00   13k  4,247k  +1.99  1.Bd2 c5 2.Qd3+ Ka4 3.Qc2+ Kb5
 6/8  00:00   14k  4,805k  +2.99  1.Be1 c6 2.Qd3+ Ka4
... all 1.Be1 ...
 47/44  03:50   2,510,239k  10,872k   0.00  1.Be1 Qa8 2.Qd3+ Ka4 3.Ne7 Qh1 4.Qe2 Qh3 5.Qe4+ Kb5 6.Nd5 Qa3+ 7.Kb1 Qb3+ 8.Kc1 Qc4+ 9.Nc3+ Kc5 10.Qa8 Nb3+ 11.Kb2 Nd4 12.Ne4+ Kb5 13.Nc3+
...
>>>>> 54/24+  07:22   4,807,026k  10,873k  +0.20  1.Bxa5
>>>>> 54/32+  07:28   4,879,740k  10,881k  +148.92  1.Bxa5
...
 62/82  07:41   5,048,963k  10,935k  +148.95  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Qc3 a4
 63/62  08:36   5,795,878k  11,224k  +M29  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qa3+ 13.Qxa3+ Kb5 14.Qg3 g4 15.Qxg4 Kc5 16.Qg5+ Kd6 17.Qd8+ Kc6 18.Kb3 Kc5 19.Ka4 b5+ 20.Kxa5 b4 21.Qe7+ Kc4 22.Qxb4+ Kd5 23.Qe7 Kc4 24.Qe5 Kd3 25.Kb4 Kd2 26.Kc4 Kc2 27.Qe2+ Kb1 28.Kc3 Ka1 29.Qb2+
 64/56  08:42   5,875,378k  11,255k  +M27  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qc3 13.Qxc3 Kb5 14.Qg3 Kc4 15.Qxg5 Kd4 16.Qd8+ Ke5 17.Qxb6 a4 18.Qg6 Kf4 19.Ka3 Kf3 20.Kxa4 Kf2 21.Qg5 Kf3 22.Kb4 Kf2 23.Qg4 Kf1 24.Kc3 Kf2 25.Kd3 Kf1 26.Ke3 Ke1 27.Qe2+
...
 74/52  14:03   10,802,709k  12,810k  +M26  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qc3 13.Qxc3 Kb5 14.Kb2 a4 15.Qc7 Kb4 16.Kc2 a3 17.Qc3+ Kb5 18.Kb3 Ka6 19.Kxa3 Kb5 20.Kb3 Ka6 21.Qc6 Ka7 22.Kb4 Kb8 23.Kb5 Ka7 24.Qxb6+ Ka8 25.Kc6 g4 26.Qb7+
 75/52  14:20   11,111,729k  12,908k  +M26  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ Qb5 14.Qxg4+ Qb4 15.Qd7+ Qb5 16.Qd4+ Qb4 17.Qd3 Qb2+ 18.Kxb2 Kb4 19.Qc3+ Kb5 20.Ka2 Ka6 21.Kb3 a4+ 22.Kb4 a3 23.Qc7 a2 24.Qb8 b5 25.Kc5 a1Q 26.Qa8+
 76/52  15:00   11,749,635k  13,055k  +M26  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ Qb5 14.Qxg4+ Qb4 15.Qd7+ Qb5 16.Qd4+ Qb4 17.Qd3 Qb2+ 18.Kxb2 Kb4 19.Qc3+ Kb5 20.Ka2 Ka6 21.Kb3 a4+ 22.Kb4 a3 23.Qc7 a2 24.Qb8 b5 25.Kc5 a1Q 26.Qa8+
 
Stockfish_19100908C-24: Found 510 tablebases
 1/1  00:00   517  259k  +1.99  1.Qf8
 2/2  00:00   2k  883k  +2.18  1.Bf8 c6
 3/4  00:00   3k  1,569k  +1.40  1.Bf8 c5 2.Bxg7
 4/5  00:00   5k  1,799k  +6.66  1.Bxa5 c6 2.Bxb6
 5/8  00:00   11k  1,572k  +0.84  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Qc4+ Qb4 4.Qxc7
 6/9  00:00   12k  1,672k  +0.84  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Qc4+ Qb4 4.Qxc7 Qe1+ 5.Kb2
 7/13  00:00   25k  2,299k  +1.61  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb4
 8/14  00:00   46k  3,535k  +2.87  1.Be1 c5 2.Kb1 c4 3.Qd1+ Ka3
...
 50/57  05:01   3,289,346k  10,928k   0.00  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd5 4.Qb5+ Ke4 5.Qe2+ Kd4 6.Qb2+ Kc4 7.Qb4+ Kd5 8.Qb5+
>>>>> 51/33+  05:54   3,905,571k  11,011k  +148.95  1.Bxa5
>>>>> 51/56+  06:03   4,027,604k  11,083k  +149.05  1.Bxa5
 51/56+  06:03   4,027,760k  11,083k  +M47  1.Bxa5
 51/56  06:03   4,032,375k  11,085k  +M27  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 Qc3 13.Qxc3 Kb5 14.Kb3 a4+ 15.Ka3 g4 16.Qb4+ Kc6 17.Qxg4 Kc5 18.Kxa4 b5+ 19.Ka5 b4 20.Qxb4+ Kd5 21.Qf4 Ke6 22.Kb5 Ke7 23.Qf5 Kd6 24.Kb6 Ke7 25.Kc6 Ke8 26.Kd6 Kd8 27.Qf8+
...
 78/54  15:00   12,554,555k  13,949k  +M26  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ Qb5 14.Qxg4+ Qb4 15.Qd7+ Qb5 16.Qd4+ Qb4 17.Qd3 Qb2+ 18.Kxb2 Kb4 19.Qc3+ Kb5 20.Kb3 a4+ 21.Ka3 Ka6 22.Kb4 a3 23.Qc7 a2 24.Qb8 b5 25.Kc5 a1Q 26.Qa8+

asmFishWCP_2019-10-16_bmi2 (default c=24): node 0 has threads 0 1 2 3 4 5 6 7
 1/1  00:00   496  496k  +2.41  1.Qf8
 2/2  00:00   1k  1,074k  +2.11  1.Qf8 c6
 3/4  00:00   2k  2,331k  +1.92  1.Bf8 c5 2.Bxg7
 4/6  00:00   4k  4,105k  +1.39  1.Bxa5 bxa5 2.Qd1+ Ka3 3.Qc1+ Ka4 4.Qc2+ Ka3
 5/8  00:00   7k  1,491k  +1.00  1.Bxa5 bxa5 2.Qd1+ Ka3 3.Qc1+ Ka4 4.Qc4+ Qb4
 6/9  00:00   9k  1,073k  +0.80  1.Bxa5 bxa5 2.Qd1+ Ka3 3.Qc1+ Ka4 4.Qc4+ Qb4 5.Qxc7
 7/10  00:00   11k  1,321k  +4.02  1.Be1 c5 2.Qd1+ Ka3
... all 1.Be1, 0.00 8 secs. and longer ...
 45/50  02:31   2,006,882k  13,275k   0.00  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd5 4.Qd7+ Ke4 5.Ne7 Nc4+ 6.Kb1 Ne3 7.Nc6 Qa3 8.Qd4+ Kf3 9.Ne5+ Kg2 10.Qd2+ Kh1 11.Nd3 Qb3+ 12.Nb2 b5 13.Qc1 Nc4 14.Bc3+ Kg2 15.Qg5+ Kf2 16.Qf4+ Kg2 17.Qg4+ Kh2 18.Qxg7 Na3+ 19.Ka1 Nc2+ 20.Kb1
>>>>> 46/48+  02:47   2,234,120k  13,319k  +0.10  1.Bxa5
>>>>> 46/48+  02:48   2,238,327k  13,321k  +0.19  1.Bxa5
>>>>> 46/48+  02:52   2,302,946k  13,342k  +123.55  1.Bxa5
>>>>> 46/48  02:52   2,303,030k  13,342k  +153.08  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ b5 14.Qd1+ Qb3+ 15.Qxb3+
...  70/30  15:00   12,936,266k  14,374k  +153.08  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ b5 14.Qd1+ Qb3+ 15.Qxb3+

asmFishWCP_2019-10-16c0:
 1/1  00:00   568  568k  +2.32  1.Qf8
 2/2  00:00   1k  1,350k  +2.31  1.Bf8 b5 2.Qd1+ Kc4
 3/4  00:00   2k  2,005k  +1.72  1.Bf8 c5 2.Bxg7
 4/6  00:00   4k  3,774k  +1.42  1.Bf8 Kc3 2.Bxg7+ Kc2 3.Bb2 Nb3+ 4.Ka2
 5/7  00:00   10k  5,044k  +1.53  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2
 6/8  00:00   14k  3,397k  +1.53  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb4 4.Qc2+ Kb5
 7/9  00:00   15k  2,952k  +1.76  1.Be1 Ka3 2.Qe8 Nb3+ 3.Kb1 c5
... all 1.Be1, 0.00 at 4 secs. and after ...
 47/69  05:32   4,543,459k  13,650k   0.00  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd3 4.Qd7+ Ke4 5.Ne7 Nc4+ 6.Kb1 Ne3 7.Nc6 Qa3 8.Qd4+ Kf3 9.Ne5+ Kg2 10.Qd2+ Kh1 11.Nd3 Qb3+ 12.Nb2 b5 13.Qc1 Kg2 14.Bc3 Nc4 15.Qg5+ Kh3 16.Qf5+ Kg2 17.Qg4+ Kh2 18.Qh4+ Kg2 19.Qg5+
>>>>> 48/68+  06:26   5,276,102k  13,653k  +0.10  1.Bxa5
>>>>> 48/68+  06:26   5,276,106k  13,653k  +5.41  1.Bxa5
>>>>> 48/68+  06:37   5,440,914k  13,679k  +128.77  1.Bxa5
>>>>> 48/68  06:37   5,440,988k  13,679k  +153.08  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ b5 14.Qd1+ Qb3+ 15.Qxb3+
... 70/30  15:00   12,693,721k  14,104k  +153.08  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ b5 14.Qd1+ Qb3+ 15.Qxb3+

AsmFishWCP_2019-10-16c0:
 1/1  00:00   445  445k  +2.24  1.Qf8
 2/2  00:00   1k  1,388k  +2.23  1.Bf8 b5
 3/4  00:00   2k  1,970k  +2.31  1.Bf8 Kc4 2.Bxg7
 4/6  00:00   3k  2,951k  +2.72  1.Bf8 Kc4 2.Kb2 g6
 5/6  00:00   11k  5,335k  +2.88  1.Be1 g6 2.Qd1+ Kc4 3.Qa4+ Kd3
... all 1.Be1 ...
 51/33  06:18   5,180,714k  13,688k   0.00  1.Be1 Qa8 2.Qd1+ Kc4 3.Qa4+ Kd3 4.Qd7+ Ke4 5.Ne7 Nc4+ 6.Kb1 Ne3 7.Nc6 Qa3 8.Qe6+ Kd3 9.Bb4 Qa4 10.Qg6+ Kc4 11.Qe4+ Kb5 12.Nd4+ Kxb4 13.Qxe3 Kc4 14.Qe2+ Kc3 15.Qf3+ Kc4
>>>>> 52/42+  08:31   7,012,327k  13,698k  +0.10  1.Bxa5
>>>>> 52/42+  08:32   7,019,507k  13,698k  +0.19  1.Bxa5
>>>>> 52/42+  09:03   7,459,598k  13,723k  +123.55  1.Bxa5
 52/42  09:03   7,459,675k  13,723k  +153.08  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ b5 14.Qd1+ Qb3+ 15.Qxb3+
...
 69/30  15:00   12,615,528k  14,017k  +153.08  1.Bxa5 bxa5 2.Qd3+ Ka4 3.Ka2 Qb7 4.Qc4+ Qb4 5.Nb6+ cxb6 6.Qd3 g6 7.Qd7+ Qb5 8.Qd4+ Qb4 9.Qd3 g5 10.Qd7+ Qb5 11.Qd4+ Qb4 12.Qd3 g4 13.Qd7+ b5 14.Qd1+ Qb3+ 15.Qxb3+
Parent - - By dorszcz (**) Date 2019-10-16 07:01
Can you check how Houdini 6 Tactical with Nalimov compares to Syzygy? Nalimov probably can find shorter mates, but I 'm interested if Syzygy finds the best move even quicker than 18 seconds.
Parent - By user923005 (****) Date 2019-10-16 18:17 Upvotes 1
Houdini is not deterministic in this position.
Sometimes it finds it very fast and sometimes it does not even find it after a long search.

I guess the same thing will be true of the other Houdini type models (Rybka, Fire, Ippolit, Gull, Ivanhoe, etc.)

Critter finds the mate fastest, and is repeatable.
Up Topic The Rybka Lounge / Test Positions / Alternative Chess Test 2

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