Just analyzed a game from the 'English Rapid' and the opening explorer couldn't find the game's starting position in its opening book ...
The game's starting position at ply-0 in the move list is actually a position from ply-2 in some line of the English.
But since the first two hashes haven't been rolled into the starting position's hash, maybe that's why ?
Funny thing is, when at the last game position the opening explorer then did recognize the opening ... that's weird ...
The game's starting position at ply-0 in the move list is actually a position from ply-2 in some line of the English.
But since the first two hashes haven't been rolled into the starting position's hash, maybe that's why ?
Funny thing is, when at the last game position the opening explorer then did recognize the opening ... that's weird ...