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1. c4
transpositions from: c2c4 · c3b1 · a4d1 · f3g1 · c2d1 · a3b1
Atomic opening

Atomic English

Reference: 1. c4

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UNSOLVED · Black to move · best line +700cpbacked ·26

This position: analysed (12.03B nodes across 3 passes)Moves here: 20 searched

workers serve visitor requests first

rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq - 0 1

visits 3 · nodes 12.03B · 1,567.4s

raw engine output (last analysis)
info depth 40 seldepth 70 multipv 1 score cp 728 nodes 10000005443 nps 6942731 hashfull 999 tbhits 33768 time 1440356 pv b8c6 g1f3 c6d4 f3d4 e7e6 e2e3 g8f6 f2f3 f8d6 c4c5 d6h2 d1a4 b7b5 a4h4 h7h5 f1d3 g7g6 b1c3 d7d5 c5c6 a7a5 d3c2 g6g5 h4h2 f6e4 f3e4 e6e5 d2d4 d8e7 d4e5 f7f5 b2b3 g5g4 h2h4 e7h4 c3e4 h5h4 c1b2 h4h3 e1c1 h3h2 e4f6 e8f7 d1h1 b5b4 b2d4 c8a6 g2g3 a5a4 c2d1 a6e2 d1e2 a4b3 a2a4 b4a3 d4a7 f7g6
info depth 39 seldepth 93 multipv 2 score cp 603 nodes 10000005443 nps 6942727 hashfull 999 tbhits 33768 time 1440357 pv g8f6 d1a4 b8c6 d2d3 e7e5 c4c5 f6g4 f2f3 g4e3 c1e3 d8h4 g2g3 h4a4 b1c3 c6d4 e2e3 d4c2 e1d1 d7d5 b2b4 b7b5 a2a4 f8e7 h2h4 h7h6 a4a5 f7f5 h4h5 c2b4 d1c1 b5b4 a5a6 c8d7 f3f4 d7a4 g1h3 g7g5 h3g1
· earlier wider pass ·
info depth 12 seldepth 32 multipv 1 score cp 416 nodes 32102172 nps 185561687 hashfull 211 tbhits 0 time 173 pv b8c6 d2d4 c6b4 d1a4 b7b5 a4a5 g8h6 h2h3 b4c2 e1d1 c8a6 c1g5 f7f6 d4d5 h6g4 g5h6 g4e3 f2e3 g7h6 e2e3 e7e6 c4c5 b5b4 d5d6 f8d6 a5c7 a6e2 d1c1 e2f1 b1c3
info depth 11 seldepth 26 multipv 2 score cp 385 nodes 32102172 nps 185561687 hashfull 211 tbhits 0 time 173 pv g8f6 d1a4 b8c6 e1d1 e7e5 g1f3 f6e4 d2d4 b7b5 f3g5 e4g5 a4c2 d7d5 c1g5 f7f6 e2e3 c6d4 c4b5 c7c6
info depth 11 seldepth 29 multipv 3 score cp 375 nodes 32102172 nps 185561687 hashfull 211 tbhits 0 time 173 pv g8h6 d1a4 b8c6 c4c5 e7e5 e1d1 h6g4 h2h4 g4f2 h1f1 f7f6 a4g4 f6f5 e2e4
info depth 11 seldepth 20 multipv 4 score cp 303 nodes 32102172 nps 185561687 hashfull 211 tbhits 0 time 173 pv e7e5 e2e3 f8b4 b1c3 f7f5 f2f4 h7h5 h2h4 b8c6 d2d4 g8f6 d4e5 c6d4 g1f3 g7g5 f4g5
info depth 11 seldepth 18 multipv 5 score cp 302 nodes 32102172 nps 185561687 hashfull 211 tbhits 0 time 173 pv e7e6 g1f3 d8f6 d1a4 b7b5 a4a7 f8d6 d2d3 d6g3 e1d1 g3f4 c1e3 f4e3 b1d2 f6g5 e2e3 b5b4

Moves

movestateevalpn / dnvisits
g8f6unsolved700backed ·2523 / 483
b8c6unsolved603backed ·1210 / 683
g8h6unsolved400backed ·33 / 872
e7e5unsolved374backed ·381 / 413
e7e6unsolved367backed ·5102 / 212
c7c6unsolved89backed ·448 / 512
f7f6unsolved30backed ·31 / 602
g7g6unsolved9backed ·31 / 502
d7d5unsolved-9backed ·33 / 842
h7h6unsolved-16backed ·31 / 562
f7f5unsolved-608 / 1512
a7a5unsolved-69backed ·21 / 502
d7d6unsolved-75backed ·338 / 882
h7h5unsolved-79backed ·18 / 362
c7c5unsolved-136backed ·21 / 492
b7b6unsolved-198backed ·315 / 222
g7g5unsolved-203backed ·320 / 442
b7b5unsolved-2081 / 442
b8a6unsolved-230backed ·39 / 713
a7a6unsolved-276backed ·313 / 392