MikeGL wrote: ↑Sun Jul 26, 2020 4:56 am
zullil wrote: ↑Sun Jul 26, 2020 2:56 am
info depth 55 seldepth 104 multipv 1 score cp 119 nodes 15213681014 nps 29435446 hashfull 894 tbhits 624177 time 516849 pv f4f6 e7f6 g5f6 g7g8 f3g5 c2a3 h3h7 a3b5 h2h4 b6d8 h7g7 g8h8 h1g2 b5c7 e1g3 c7e8 g7f7 f8f7 g5f7 h8g8 f7d8 b8d8 h4h5 g6g5 d1f1 e8c7 f6f7 g8g7 g3e1 d8f8 e1d2 f8f7 h5h6 g7g8 f1f7 g8f7 e2h5 f7g8 h5g6 c6e8 g6b1 e8h5 d2g5 c7e8 g5f6 e8g7 h6g7 h5e2 f6e7 g8g7 g2g3 e2d1 g3f2 d1h5 e7b4 h5d1 f2e3 g7f7 e3d2 d1f3 d2e1 f3h5 e1f2 h5g4 b4a3 g4d1 f2e1 d1f3 a3d6 f7g7 e1f2 f3d1 f2e3 g7f7 d6c7 f7g7 c7d8 g7f7 d8f6 d1g4 f6g5 g4d1 g5h6 d1h5 b1h7 h5g4 e3d2 g4h5 d2c1 h5e2 h7b1 e2h5 h6g5 h5g4 g5f4 g4f3 f4e3 f3h5 e3h6 h5f3 c1d2 f3h5 d2e3
Does this mean the position was just a fortress draw after Qf6+! line?
Looks like an opposite B pawn endgame with a fortress for black who is also on the losing side.
No, the engine just needed a bit more time to find the proper line:
info depth 59 seldepth 109 multipv 1 score cp 119 nodes 19031491080 nps 29276649 hashfull 958 tbhits 1918732 time 650057 pv f4f6 e7f6 g5f6 g7g8 f3g5 c2a3 h3h7 a3b5 h7g7 g8h8 h2h4 b5d6 e1g3 b6d8 h1g2 d6e8 g7f7 f8f7 g5f7 h8g8 f7d8 b8d8 h4h5 g6g5 d1f1 e8c7 f6f7 g8g7 g3e1 d8f8 e1d2 f8f7 h5h6 g7g8 f1f7 g8f7 e2h5 f7g8 h5g6 c6e8 g6b1 e8h5 d2g5 c7e8 g5f6 e8g7 h6g7 h5e2 f6e7 g8g7 g2g3 e2d1 g3f2 d1h5 e7b4 h5d1 f2e3 g7f7 e3d2 d1f3 d2e1 f3h5 e1f2 h5g4 b4a3 g4d1 f2e1 d1f3 a3d6 f3h5 e1d2 h5g4 d6c5 g4f3 d2c1 f7g7 c5d6 g7f7 d6c7 f7g7 c1d2 f3g4 c7a5 g4f3 a5d8 f3h5 d8e7 g7f7 e7f6 f7g8 d2c1 g8f7 f6d8 f7g8 d8e7 g8g7 e7g5 h5f3 c1d2 f3h5 g5d8 g7h6 d8f6 h5e8 d2e3 e8h5 f6e7 h6g7 e7b4
info depth 60 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 128 lowerbound nodes 24381879312 nps 28984467 hashfull 987 tbhits 2763441 time 841205 pv f4f6
info depth 59 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 137 lowerbound nodes 25343867025 nps 28974651 hashfull 989 tbhits 2796837 time 874691 pv f4f6
info depth 58 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 151 lowerbound nodes 26069265964 nps 29000329 hashfull 991 tbhits 2804228 time 898930 pv f4f6
info depth 57 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 170 lowerbound nodes 26658746914 nps 29068179 hashfull 992 tbhits 2819129 time 917111 pv f4f6
info depth 56 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 197 lowerbound nodes 29905447224 nps 29140253 hashfull 997 tbhits 2896904 time 1026259 pv f4f6
info depth 55 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 233 lowerbound nodes 30774901774 nps 29170440 hashfull 997 tbhits 2913394 time 1055003 pv f4f6
info depth 54 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 279 lowerbound nodes 32972703919 nps 29168929 hashfull 998 tbhits 2914781 time 1130405 pv f4f6
info depth 53 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 340 lowerbound nodes 39126988026 nps 29185545 hashfull 999 tbhits 3286450 time 1340629 pv f4f6
info depth 52 currmove f4f6 currmovenumber 1
info depth 60 seldepth 107 multipv 1 score cp 418 lowerbound nodes 50019692925 nps 29148716 hashfull 1000 tbhits 4180047 time 1716017 pv f4f6
info depth 51 currmove f4f6 currmovenumber 1
info depth 51 currmove h3h6 currmovenumber 2
info depth 51 currmove h1g1 currmovenumber 3
info depth 51 currmove d1b1 currmovenumber 4
info depth 51 currmove f3d2 currmovenumber 5
info depth 51 currmove e1h4 currmovenumber 6
info depth 51 currmove e1f2 currmovenumber 7
info depth 51 currmove e1d2 currmovenumber 8
info depth 51 currmove e2f1 currmovenumber 9
info depth 51 currmove f3h4 currmovenumber 10
info depth 51 currmove f3g1 currmovenumber 11
info depth 51 currmove d1d2 currmovenumber 12
info depth 51 currmove f4h4 currmovenumber 13
info depth 51 currmove e1g3 currmovenumber 14
info depth 51 currmove f4g3 currmovenumber 15
info depth 51 currmove d1c1 currmovenumber 16
info depth 51 currmove e2d3 currmovenumber 17
info depth 51 currmove d1d3 currmovenumber 18
info depth 51 currmove f4f5 currmovenumber 19
info depth 51 currmove h3g3 currmovenumber 20
info depth 51 currmove h1g2 currmovenumber 21
info depth 51 currmove h3h4 currmovenumber 22
info depth 51 currmove f4c1 currmovenumber 23
info depth 51 currmove f4g4 currmovenumber 24
info depth 51 currmove d1a1 currmovenumber 25
info depth 51 currmove f4e4 currmovenumber 26
info depth 51 currmove f4e3 currmovenumber 27
info depth 51 currmove h3h5 currmovenumber 28
info depth 51 currmove f4d2 currmovenumber 29
info depth 51 currmove h3h7 currmovenumber 30
info depth 51 currmove f4f7 currmovenumber 31
info depth 51 currmove e2c4 currmovenumber 32
info depth 60 seldepth 107 multipv 1 score cp 418 nodes 52873633123 nps 29133853 hashfull 1000 tbhits 4439144 time 1814852 pv f4f6 e7f6 g5f6 g7g8 e1d2 b6a5 d2h6 a5c3 b2c3 b3b2 h6f8 b2b1q d1b1 b8b1 h1g2 h7h5 f8c5 b1a1 h3g3 c2e3 g2f2 e3g4 g3g4 h5g4 f3d2 a1a2 f2e3 a2c2 c5b4 g4g3 h2g3 c6e8 g3g4 c2a2 d2f3 a2c2 e2d1 c2c1 e3d2 c1a1 f3g5 a1b1 d1c2 b1f1 c2d1 f1f2 d2e3 f2f1 d1f3 f1a1 e3f2 g8h8 f3e2 a1b1 f2e3 b1c1 e2f3 c1f1 b4f8 f1b1 f3e2 b1b3 f8b4 b3b1 e3f2 b1b2 b4c5 b2a2 f2e3 a2b2 e2d1 h8g8 c5b4 b2b1
and eventually
info depth 64 seldepth 111 multipv 1 score cp 583 nodes 1286596679097 nps 42818193 hashfull 1000 tbhits 29784765 time 30047897 pv f4f6 e7f6 g5f6 g7g8 e1d2 b6a5 d2h6 a5c3 b2c3 b3b2 h6f8 b8f8 d1b1 f8b8 f3g5 c2a3 h3h7 c6e8 h7g7 g8h8 b1b2 b8b2 g7h7 h8g8 e2g4 a3c2 h7g7 g8h8 g4e6 f7e6 g7a7 b2b8 g5e6 c2e1 h2h4 e1f3 h1g2 f3h4 g2g3 h4f5 g3h3 h8g8 e6g5 a4a3 e5e6 f5d6 f6f7 e8f7 e6f7 d6f7 g5f7 b8b1 f7h6 g8f8 h6g4 b1b3 h3h4 b3c3 h4g5 c3f3 g4e5 f3f1 e5g6 f8e8 a7a3 e8d7 a3e3 f1d1 g6e5 d7c7 e5f3 d1h1 g5f5 h1h6 e3e6 h6h1 f5e5 h1f1 e5f4 c7d7 e6g6 d7e7 g6g5 e7e6 g5e5 e6d6 e5e8 f1d1 e8e3 d1h1 e3e1 h1h8 e1a1 h8f8 f4e3 f8g8 a1a6 d6d7 f3e5 d7e7 e3f4 g8g1 e5g4 g1f1 f4e5 c4c3 a6c6 f1g1