Matefish-3 // Are this test results so ok? I think no.

[chessica]

Yes, the diagram and the question came from a joker.
That's obviously the case. but after Bf4 it's a mate problem in 12.

Matefish 3.0 64 by the Stockfish developers and J. Oster
position fen r3k2r/pp3ppp/2b1p3/6P1/3p1B2/2P2NP1/PP3q1P/R2Q3K b kq - 1 1
d

Code: Select all

 +---+---+---+---+---+---+---+---+
 | r |   |   |   | k |   |   | r | 8
 +---+---+---+---+---+---+---+---+
 | p | p |   |   |   | p | p | p | 7
 +---+---+---+---+---+---+---+---+
 |   |   | b |   | p |   |   |   | 6
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   |   | P |   | 5
 +---+---+---+---+---+---+---+---+
 |   |   |   | p |   | B |   |   | 4
 +---+---+---+---+---+---+---+---+
 |   |   | P |   |   | N | P |   | 3
 +---+---+---+---+---+---+---+---+
 | P | P |   |   |   | q |   | P | 2
 +---+---+---+---+---+---+---+---+
 | R |   |   | Q |   |   |   | K | 1
 +---+---+---+---+---+---+---+---+
   a   b   c   d   e   f   g   h

Fen: r3k2r/pp3ppp/2b1p3/6P1/3p1B2/2P2NP1/PP3q1P/R2Q3K b kq - 1 1
PositionKey: E64E71F1883168DE
MaterialKey: AF895E0456800CB7
Checkers:
Legal moves: 41
setoption name SyzygyPath value C:\Program Files\arena_3.5.1\TB\syzygy
info string Found 270 tablebases
setoption name PNS Hash value 1024
setoption name ProofNumberSearch value true
go mate 13
info string Starting Proof-Number Search ...
info time 725 multipv 1 depth 25 seldepth 25 nodes 576463 nps 795121 tbhits 0 score cp 0 pv f2h2
info time 925 multipv 1 depth 25 seldepth 25 nodes 1122883 nps 1213927 tbhits 0 score cp 0 pv f2h2
info time 1125 multipv 1 depth 25 seldepth 25 nodes 1674605 nps 1488537 tbhits 0 score cp 0 pv f2h2
info time 1325 multipv 1 depth 25 seldepth 25 nodes 2235321 nps 1687034 tbhits 0 score cp 0 pv f2h2
info time 1525 multipv 1 depth 25 seldepth 25 nodes 2820586 nps 1849564 tbhits 0 score cp 0 pv f2h2
info time 1725 multipv 1 depth 25 seldepth 25 nodes 3439999 nps 1994202 tbhits 0 score cp 0 pv f2h2
info time 1925 multipv 1 depth 25 seldepth 25 nodes 4068358 nps 2113432 tbhits 0 score cp 0 pv f2h2
info time 2925 multipv 1 depth 25 seldepth 25 nodes 7254614 nps 2480209 tbhits 0 score cp 0 pv f2h2
info time 3925 multipv 1 depth 25 seldepth 25 nodes 10435898 nps 2658827 tbhits 0 score cp 0 pv f2h2
info time 4925 multipv 1 depth 25 seldepth 25 nodes 13565186 nps 2754352 tbhits 0 score cp 0 pv f2h2
info time 5925 multipv 1 depth 25 seldepth 25 nodes 16744023 nps 2825995 tbhits 0 score cp 0 pv f2h2
info time 6925 multipv 1 depth 25 seldepth 25 nodes 19871391 nps 2869514 tbhits 0 score cp 0 pv f2h2
info time 7925 multipv 1 depth 25 seldepth 25 nodes 23038917 nps 2907118 tbhits 0 score cp 0 pv f2h2
info time 8925 multipv 1 depth 25 seldepth 25 nodes 26187232 nps 2934143 tbhits 0 score cp 0 pv f2h2
info time 9925 multipv 1 depth 25 seldepth 25 nodes 29315885 nps 2953741 tbhits 0 score cp 0 pv f2h2
info time 12425 multipv 1 depth 25 seldepth 25 nodes 36811693 nps 2962711 tbhits 0 score cp 0 pv f2h2
info time 14925 multipv 1 depth 25 seldepth 25 nodes 44081335 nps 2953523 tbhits 0 score cp 0 pv f2h2
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Failure! No mate found!
info time 16438 multipv 1 depth 25 seldepth 25 nodes 48118797 nps 2927290 tbhits 0 score cp 0 pv f2h2
bestmove f2h2

and now:

go mate 12
info string Starting Proof-Number Search ...
info time 717 multipv 1 depth 23 seldepth 23 nodes 573522 nps 799891 tbhits 0 score cp 0 pv f2h2
info time 917 multipv 1 depth 23 seldepth 23 nodes 1127712 nps 1229784 tbhits 0 score cp 0 pv f2h2
info time 1117 multipv 1 depth 23 seldepth 23 nodes 1676203 nps 1500629 tbhits 0 score cp 0 pv f2h2
info time 1317 multipv 1 depth 23 seldepth 23 nodes 2228597 nps 1692176 tbhits 0 score cp 0 pv f2h2
info time 1517 multipv 1 depth 23 seldepth 23 nodes 2818273 nps 1857793 tbhits 0 score cp 0 pv f2h2
info time 1717 multipv 1 depth 23 seldepth 23 nodes 3428271 nps 1996663 tbhits 0 score cp 0 pv f2h2
info time 1917 multipv 1 depth 23 seldepth 23 nodes 4061281 nps 2118560 tbhits 0 score cp 0 pv f2h2
info time 2917 multipv 1 depth 23 seldepth 23 nodes 7228612 nps 2478098 tbhits 0 score cp 0 pv f2h2
info time 3917 multipv 1 depth 23 seldepth 23 nodes 10349815 nps 2642281 tbhits 0 score cp 0 pv f2h2
info time 4917 multipv 1 depth 23 seldepth 23 nodes 13475800 nps 2740654 tbhits 0 score cp 0 pv f2h2
info time 5917 multipv 1 depth 23 seldepth 23 nodes 16646144 nps 2813274 tbhits 0 score cp 0 pv f2h2
info time 6917 multipv 1 depth 23 seldepth 23 nodes 19738803 nps 2853665 tbhits 0 score cp 0 pv f2h2
info time 7917 multipv 1 depth 23 seldepth 23 nodes 22913952 nps 2894272 tbhits 0 score cp 0 pv f2h2
info time 8917 multipv 1 depth 23 seldepth 23 nodes 26043432 nps 2920649 tbhits 0 score cp 0 pv f2h2
info time 9917 multipv 1 depth 23 seldepth 23 nodes 29171523 nps 2941567 tbhits 0 score cp 0 pv f2h2
info time 12417 multipv 1 depth 23 seldepth 23 nodes 36653408 nps 2951873 tbhits 0 score cp 0 pv f2h2
info time 14917 multipv 1 depth 23 seldepth 23 nodes 43933500 nps 2945196 tbhits 0 score cp 0 pv f2h2
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Running out of memory ...
info string Failure! No mate found!
info time 16516 multipv 1 depth 23 seldepth 23 nodes 48118797 nps 2913465 tbhits 0 score cp 0 pv f2h2
bestmove f2h2

[chessica]

[d]1b4N1/7p/1p1pB2R/6k1/4p1p1/R1p1pbP1/5P1P/K3B1nq w - - 0 1
#5
position fen 1b4N1/7p/1p1pB2R/6k1/4p1p1/R1p1pbP1/5P1P/K3B1nq w - - 0 1
d

+---+---+---+---+---+---+---+---+
| | b | | | | | N | | 8
+---+---+---+---+---+---+---+---+
| | | | | | | | p | 7
+---+---+---+---+---+---+---+---+
| | p | | p | B | | | R | 6
+---+---+---+---+---+---+---+---+
| | | | | | | k | | 5
+---+---+---+---+---+---+---+---+
| | | | | p | | p | | 4
+---+---+---+---+---+---+---+---+
| R | | p | | p | b | P | | 3
+---+---+---+---+---+---+---+---+
| | | | | | P | | P | 2
+---+---+---+---+---+---+---+---+
| K | | | | B | | n | q | 1
+---+---+---+---+---+---+---+---+
a b c d e f g h

Fen: 1b4N1/7p/1p1pB2R/6k1/4p1p1/R1p1pbP1/5P1P/K3B1nq w - - 0 1
PositionKey: 75FBD3CE87D4BCD2
MaterialKey: BACD1165F081249E
Checkers:
Legal moves: 32
setoption name PNS Hash value 1024
setoption name ProofNumberSearch value true
go mate 5
info string Starting Proof-Number Search ...
info string Success! Mate in 5 found!
info time 670 multipv 1 depth 9 seldepth 9 nodes 71878 nps 107280 tbhits 0 score mate 5 pv a3b3 d6d5 b3b5 b8g3 b5d5 g3e5 d5e5 g5f4 e5f5
bestmove a3b3 ponder d6d5

[chessica]

[d]5n2/p3p3/P1Rp1bp1/1KnPPp2/1Rp3PP/kp3BP1/NrrB4/qbQ5 w - - 0 1
#24

position fen 5n2/p3p3/P1Rp1bp1/1KnPPp2/1Rp3PP/kp3BP1/NrrB4/qbQ5 w - - 0 1
d

Code: Select all

 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   | n |   |   | 8
 +---+---+---+---+---+---+---+---+
 | p |   |   |   | p |   |   |   | 7
 +---+---+---+---+---+---+---+---+
 | P |   | R | p |   | b | p |   | 6
 +---+---+---+---+---+---+---+---+
 |   | K | n | P | P | p |   |   | 5
 +---+---+---+---+---+---+---+---+
 |   | R | p |   |   |   | P | P | 4
 +---+---+---+---+---+---+---+---+
 | k | p |   |   |   | B | P |   | 3
 +---+---+---+---+---+---+---+---+
 | N | r | r | B |   |   |   |   | 2
 +---+---+---+---+---+---+---+---+
 | q | b | Q |   |   |   |   |   | 1
 +---+---+---+---+---+---+---+---+
   a   b   c   d   e   f   g   h

Fen: 5n2/p3p3/P1Rp1bp1/1KnPPp2/1Rp3PP/kp3BP1/NrrB4/qbQ5 w - - 0 1
PositionKey: 2FF6A4806B2B2617
MaterialKey: 4BBA19D2DE9D4812
Checkers:
Legal moves: 35
go mate 24
info string Starting Proof-Number Search ...
info time 714 multipv 1 depth 47 seldepth 47 nodes 594161 nps 832158 tbhits 0 score cp 0 pv c1b2
info time 914 multipv 1 depth 47 seldepth 47 nodes 1165962 nps 1275669 tbhits 0 score cp 0 pv c1b2
info time 1114 multipv 1 depth 47 seldepth 47 nodes 1749507 nps 1570473 tbhits 0 score cp 0 pv c1b2
info time 1314 multipv 1 depth 47 seldepth 47 nodes 2336074 nps 1777834 tbhits 0 score cp 0 pv c1b2
info time 1514 multipv 1 depth 47 seldepth 47 nodes 2913726 nps 1924521 tbhits 0 score cp 0 pv c1b2
info time 1714 multipv 1 depth 47 seldepth 47 nodes 3493118 nps 2037991 tbhits 0 score cp 0 pv c1b2
info time 1914 multipv 1 depth 47 seldepth 47 nodes 4066195 nps 2124448 tbhits 0 score cp 0 pv c1b2
info time 2914 multipv 1 depth 47 seldepth 47 nodes 6967134 nps 2390917 tbhits 0 score cp 0 pv c1b2
info time 3914 multipv 1 depth 47 seldepth 47 nodes 10318471 nps 2636298 tbhits 0 score cp 0 pv c1b2
info time 4914 multipv 1 depth 47 seldepth 47 nodes 13374887 nps 2721792 tbhits 0 score cp 0 pv c1b2
info time 5914 multipv 1 depth 47 seldepth 47 nodes 16495890 nps 2789294 tbhits 0 score cp 0 pv c1b2
info string Success! Mate in 24 found!
info time 6860 multipv 1 depth 47 seldepth 47 nodes 19956063 nps 2909047 tbhits 0 score mate 24 pv c6c5 b3a2 b4b3 a3b3 f3d1 f6g5 h4g5 f8e6 d5e6 d6c5 d2b4 c5b4 c1e3 c4c3 e3b6 a7b6 a6a7 f5g4 a7a8n b3a3 a8b6 a3b3 b6d5 b3a3 d5e3 a3b3 e3g4 b3a3 g4e3 a3b3 e3d5 b3a3 d5b6 a3b3 b5a6 b3a3 a6a5 a3b3 a5b5 b3a3 b6c4 a3b3 c4a5 b3a3 g3g4 b2b3 a5c4
bestmove c6c5 ponder b3a2

[chessica]

option name Debug Log File type string default
option name Threads type spin default 1 min 1 max 64
option name Hash type spin default 32 min 1 max 16384
option name PNS Hash type spin default 32 min 1 max 16384
option name MultiPV type spin default 1 min 1 max 500
option name Move Overhead type spin default 30 min 0 max 5000
option name Minimum Thinking Time type spin default 20 min 0 max 5000
option name Slow Mover type spin default 84 min 10 max 1000
option name KingMoves type spin default 8 min 0 max 8
option name AllMoves type spin default 250 min 0 max 250
option name ProofNumberSearch type check default false
option name RootMoveStats type check default false
option name UCI_Chess960 type check default false
option name UCI_AnalyseMode type check default false
option name SyzygyPath type string default <empty>
option name SyzygyProbeDepth type spin default 1 min 1 max 100
option name Syzygy50MoveRule type check default false
option name SyzygyProbeLimit type spin default 7 min 0 max 7

What do these options mean exactly? A few are well known and clear, but the others in bold?