jjoshua2 wrote: ↑Wed Mar 25, 2020 2:39 pm
Fen after 60. Nd3
[d]8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - 9 60
Redfish spiked to 5.3 here, but here's analysis After 60...Ra1
Code: Select all
info depth 78 seldepth 98 multipv 1 score cp -14871 nodes 1444012721031 nps 34440357 hashfull 1000 tbhits 13704844823 time 41927925 pv d3f4 h3h2 f4d5 c7b7 c3c4 b7a7 d5c3 a1g1 e2d2 g1g4 c3e4 g4f4 f3g2 f4f1 d2e2 f1c1 e2d3 c1g1 g2f3 a7b8 d3e2 g1c1 e2d3 b8c7 e4c3 c1f1 f3g2 f1g1 g2c6 c7d6 c3e4 d6e6 e4f2 g1f1 d3e3 e6d6 f2e4 d6e7 e4f2 f1a1 c4c5 b6c5 b5b6 e7d6 c6a8 a1a4 f2e4 d6e7 e4c3 a4a3 e3d2 e7d8 d2c2 a3a1 c3b1 a1a2 c2b3 a2e2 b1c3 e2e1 b3a4 e1c1 b6b7 c1a1 a4b5 d8c7 c3d5 c7b8 d5f6 a1b1 b5a6 h2h1q f6d7 b8c7 b7b8q b1b8 a8h1
EGTB scores started at depth 67. Can your engine find this win? I suspect EGTB might be necessary.
SF and lc0 both seem to prefer h2 at first, and I didn't get lc0 to switch with a few million nodes, except possibly to Kd6 reached one cp higher.
Not sure if there are any other wins in nearby moves.
Stockfish-dev sees the win for Black, even without endgame tables:
info depth 65 seldepth 77 multipv 1 score cp 128 nodes 3592908062 nps 47072570 hashfull 401 tbhits 0 time 76327 pv h3h2 e2d2 h2h1r f3h1 b1h1 d2c2 c7d6 d3b2 h1h2 c2b3 h2e2 b2c4 d6c5 c4b2 e2e3 b3c2 e3e4 b2d3 c5d5 d3b2 e4e2 c2b3 e2f2 b2c4 f2f6 c4e3 d5e4 e3c4 f6e6 b3c2 e4d5 c2b3 e6h6 c4b2 h6h4 b2d3 d5e4 d3b2 h4f4 b2c4 f4f6 b3c2 f6e6 c2d2 e6h6 d2c2 e4d5 c4e3 d5c5 e3d1 h6h2 c2b3 c5d5 d1b2 d5d6 b2c4 d6c5 c4e3 h2h3 e3c4 h3h6 c4e5 c5d5 e5d3 d5e4 d3f2 e4f3 f2d3 f3e3 d3e5 h6e6 e5c4 e3d3 c4b2 d3e4 b2d1 e6f6
info depth 66 currmove h3h2 currmovenumber 1
info depth 66 currmove b1a1 currmovenumber 2
info depth 66 seldepth 77 multipv 1 score cp 138 lowerbound nodes 5964169014 nps 46627126 hashfull 604 tbhits 0 time 127912 pv b1a1
info depth 65 currmove b1a1 currmovenumber 1
info depth 66 seldepth 80 multipv 1 score cp 149 lowerbound nodes 7955961819 nps 46897432 hashfull 722 tbhits 0 time 169646 pv b1a1
info depth 64 currmove b1a1 currmovenumber 1
info depth 66 seldepth 80 multipv 1 score cp 164 lowerbound nodes 8847677161 nps 47072127 hashfull 760 tbhits 0 time 187960 pv b1a1
info depth 63 currmove b1a1 currmovenumber 1
info depth 66 seldepth 80 multipv 1 score cp 185 lowerbound nodes 9770167054 nps 47159916 hashfull 791 tbhits 0 time 207171 pv b1a1
info depth 62 currmove b1a1 currmovenumber 1
info depth 66 seldepth 80 multipv 1 score cp 214 lowerbound nodes 11017873769 nps 47246051 hashfull 828 tbhits 0 time 233202 pv b1a1
info depth 61 currmove b1a1 currmovenumber 1
info depth 66 seldepth 80 multipv 1 score cp 252 lowerbound nodes 13300641866 nps 47504497 hashfull 877 tbhits 0 time 279987 pv b1a1
info depth 60 currmove b1a1 currmovenumber 1
info depth 66 seldepth 80 multipv 1 score cp 301 lowerbound nodes 14672011415 nps 47717892 hashfull 899 tbhits 0 time 307474 pv b1a1
info depth 59 currmove b1a1 currmovenumber 1
info depth 66 seldepth 85 multipv 1 score cp 366 lowerbound nodes 18335919507 nps 48116553 hashfull 938 tbhits 0 time 381073 pv b1a1
info depth 58 currmove b1a1 currmovenumber 1
info depth 66 seldepth 96 multipv 1 score cp 448 lowerbound nodes 23576700612 nps 48572595 hashfull 970 tbhits 0 time 485391 pv b1a1
info depth 57 currmove b1a1 currmovenumber 1
info depth 66 seldepth 97 multipv 1 score cp 554 lowerbound nodes 30819251329 nps 48975029 hashfull 987 tbhits 0 time 629285 pv b1a1
info depth 66 seldepth 100 multipv 1 score cp 688 nodes 61853301911 nps 51217607 hashfull 999 tbhits 0 time 1207657 pv b1a1 d3f4 h3h2 f4d5 c7b7 c3c4 b7a7 d5c3 a1g1 f3c6 g1g3 e2d2 a7b8 d2c2 g3g6 c6f3 g6g4 c3e4 b8c7 e4d2 c7d6 c2d3 g4g1 d3d4 g1d1 d4c3 d6c7 f3g2 h2h1r g2h1 d1h1 d2b3 h1h2 b3c1 h2h3 c1d3 c7d6 c3d4 h3h1 d4c3 h1a1 c3b3 a1g1 b3c3 g1g4 c3b3 g4g3 b3c3 g3e3 c3d4 e3h3 d4c3 d6c7 c3d4 h3h1 d4c3 h1a1 d3f4 a1a4 f4d5 c7b7 c3b3 a4a1 b3b2 a1h1 d5c3 h1h2 b2a3 h2h3 a3b2 b7c7 c3a4 c7d6 b2c2 h3a3 a4b6 d6c5 b6d7 c5c4 b5b6 a3a2 c2b1 a2a4 b1b2 c4d4 d7f6 a4b4 b2a3