Topple v0.8.1 connection stalls in CuteChess #33
Description
when i let engines play a game in CuteChess, sometimes their "connection stalls" suddenly .. it also happened with Topple v0.8.1 :
3knQR1/1pp5/1p2q2p/8/8/2P4P/PP2p1P1/6K1 w - - 0 39
in this position Black (Topple) seems lost .. White (Fire v8) plays Qf8xe8+ and a few moves later Topple connection stalls .. the engine debug may show what happened, but it's not clear to me :
(...)
<Fire 8 NN MC 3(0): bestmove f8e8 ponder e6e8
>Topple v0.8.1(1): position fen r1bqk2r/pppp1Npp/2n2n2/4p3/2B1P3/8/PPPP1bPP/RNBQK2R w KQkq - 0 6 moves e1f1 d8e7 f7h8 f2b6 c4f7 e8d8 d2d3 d7d6 h2h3 c8e6 f7e6 e7e6 f1e1 d8d7 h1f1 a8h8 b1c3 h7h6 c3d5 d7c8 d5b6 a7b6 e1f2 h8d8 c2c3 d6d5 d1f3 d5e4 d3e4 e6c4 f2g1 f6e4 f3g4 d8d7 f1f8 c6d8 c1e3 e4d6 g4g3 c4e6 a1e1 e6e7 g3f2 d6e4 f2f1 e4d6 e3d4 e5e4 f1f4 e7e6 d4e5 d7f7 f8f7 d8f7 e5d6 f7d6 f4f8 d6e8 e1f1 c8d7 f1f7 d7d8 f7g7 e4e3 g7g8 e3e2 f8e8
>Topple v0.8.1(1): isready
>Fire 8 NN MC 3(0): position fen r1bqk2r/pppp1Npp/2n2n2/4p3/2B1P3/8/PPPP1bPP/RNBQK2R w KQkq - 0 6 moves e1f1 d8e7 f7h8 f2b6 c4f7 e8d8 d2d3 d7d6 h2h3 c8e6 f7e6 e7e6 f1e1 d8d7 h1f1 a8h8 b1c3 h7h6 c3d5 d7c8 d5b6 a7b6 e1f2 h8d8 c2c3 d6d5 d1f3 d5e4 d3e4 e6c4 f2g1 f6e4 f3g4 d8d7 f1f8 c6d8 c1e3 e4d6 g4g3 c4e6 a1e1 e6e7 g3f2 d6e4 f2f1 e4d6 e3d4 e5e4 f1f4 e7e6 d4e5 d7f7 f8f7 d8f7 e5d6 f7d6 f4f8 d6e8 e1f1 c8d7 f1f7 d7d8 f7g7 e4e3 g7g8 e3e2 f8e8 e6e8
>Fire 8 NN MC 3(0): isready
<Topple v0.8.1(1): readyok
>Topple v0.8.1(1): go wtime 158266 btime 228978 winc 2000 binc 2000
<Fire 8 NN MC 3(0): readyok
>Fire 8 NN MC 3(0): go ponder wtime 158266 btime 228978 winc 2000 binc 2000
<Topple v0.8.1(1): bestmove e6e8 ponder g8e8
>Fire 8 NN MC 3(0): ponderhit
>Topple v0.8.1(1): position fen r1bqk2r/pppp1Npp/2n2n2/4p3/2B1P3/8/PPPP1bPP/RNBQK2R w KQkq - 0 6 moves e1f1 d8e7 f7h8 f2b6 c4f7 e8d8 d2d3 d7d6 h2h3 c8e6 f7e6 e7e6 f1e1 d8d7 h1f1 a8h8 b1c3 h7h6 c3d5 d7c8 d5b6 a7b6 e1f2 h8d8 c2c3 d6d5 d1f3 d5e4 d3e4 e6c4 f2g1 f6e4 f3g4 d8d7 f1f8 c6d8 c1e3 e4d6 g4g3 c4e6 a1e1 e6e7 g3f2 d6e4 f2f1 e4d6 e3d4 e5e4 f1f4 e7e6 d4e5 d7f7 f8f7 d8f7 e5d6 f7d6 f4f8 d6e8 e1f1 c8d7 f1f7 d7d8 f7g7 e4e3 g7g8 e3e2 f8e8 e6e8 g8e8
>Topple v0.8.1(1): isready
<Fire 8 NN MC 3(0): info time 1 nodes 396 nps 396000 tbhits 0 depth 24 seldepth 48 multipv 1 score cp 613 pv g8e8 d8e8 g1f2 e8e7 f2e2 b6b5 e2f3 e7e6 f3e4 e6f6 e4f4 f6e6 h3h4 e6f6 g2g4 c7c6 f4e4 f6e6 a2a3 e6f6 e4f4 f6e6 g4g5 h6g5 f4g5 e6f7 g5f5 c6c5 f5e5 b5b4 a3b4 c5b4 c3b4 f7g6 e5d6 g6h6 d6c7 b7b5 c7b6 h6g7 b6c5 g7f7 h4h5
<Fire 8 NN MC 3(0): bestmove g8e8 ponder d8e8
>Fire 8 NN MC 3(0): position fen r1bqk2r/pppp1Npp/2n2n2/4p3/2B1P3/8/PPPP1bPP/RNBQK2R w KQkq - 0 6 moves e1f1 d8e7 f7h8 f2b6 c4f7 e8d8 d2d3 d7d6 h2h3 c8e6 f7e6 e7e6 f1e1 d8d7 h1f1 a8h8 b1c3 h7h6 c3d5 d7c8 d5b6 a7b6 e1f2 h8d8 c2c3 d6d5 d1f3 d5e4 d3e4 e6c4 f2g1 f6e4 f3g4 d8d7 f1f8 c6d8 c1e3 e4d6 g4g3 c4e6 a1e1 e6e7 g3f2 d6e4 f2f1 e4d6 e3d4 e5e4 f1f4 e7e6 d4e5 d7f7 f8f7 d8f7 e5d6 f7d6 f4f8 d6e8 e1f1 c8d7 f1f7 d7d8 f7g7 e4e3 g7g8 e3e2 f8e8 e6e8 g8e8 d8e8
>Fire 8 NN MC 3(0): isready
<Topple v0.8.1(1): readyok
>Topple v0.8.1(1): go ponder wtime 158266 btime 230978 winc 2000 binc 2000
>Topple v0.8.1(1): ponderhit
<Fire 8 NN MC 3(0): readyok
>Fire 8 NN MC 3(0): go ponder wtime 160265 btime 230978 winc 2000 binc 2000
<Fire 8 NN MC 3(0): info time 2 nodes 74 nps 37000 tbhits 0 depth 1 seldepth 5 multipv 1 score cp -996 pv a2a3
<Fire 8 NN MC 3(0): info time 2 nodes 79 nps 39000 tbhits 0 depth 1 seldepth 5 multipv 1 score cp 613 pv g1f2
<Fire 8 NN MC 3(0): info time 2 nodes 113 nps 56000 tbhits 0 depth 2 seldepth 5 multipv 1 score cp 613 pv g1f2 e8e7
<Fire 8 NN MC 3(0): info time 2 nodes 152 nps 76000 tbhits 0 depth 3 seldepth 5 multipv 1 score cp 613 pv g1f2 e8e7 f2e2
<Fire 8 NN MC 3(0): info time 2 nodes 193 nps 96000 tbhits 0 depth 4 seldepth 7 multipv 1 score cp 613 pv g1f2 e8e7 f2e2 b6b5
(...)
<Fire 8 NN MC 3(0): info time 19774 nodes 29852207 nps 1509000 tbhits 0 hashfull 954 depth 26 seldepth 57 multipv 1 score cp 618 pv g1f2 e8e7 f2e2 b6b5 e2e3 e7e6 e3e4 e6f6 e4f4 h6h5 g2g3 c7c5 a2a3 b7b6 g3g4 h5g4 h3g4 f6g6 g4g5 g6f7 f4f5 f7g7 g5g6 g7g8 f5f6 c5c4 f6e5 g8g7 e5f5 b5b4 a3b4 b6b5 f5g5 g7g8 g5g4
<Fire 8 NN MC 3(0): bestmove g1f2 ponder e8e7
>Topple v0.8.1(1): stop
>Fire 8 NN MC 3(0): isready
<Fire 8 NN MC 3(0): readyok
here is the final position :
Btw. i use Linux Xubuntu 20.04 and the newest CuteChess v1.2.0