r5n1/p2q1p1r/bp1p2nb/1PpPk1pp/2Q1P2P/P1P1P1P1/R3R3/1NB2KN1 b - - 2 23
FEN state: r5n1/p2q1p1r/bp1p2nb/1PpPk1pp/2Q1P2P/P1P1P1P1/R3R3/1NB2KN1 b - - 2 23 ; Best move: a6b5
The current state of the chess board is: Black rook at a8 and black knight at g8. Black pawn at a7, black queen at d7, black pawn at f7 and black rook at h7. Black bishop at a6, black pawn at b6, black pawn at d6, black knight at g6 and black bishop at h6. White pawn at b5, black pawn at c5, white pawn at d5, black king at e5, black pawn at g5 and black pawn at h5. White queen at c4, white pawn at e4 and white pawn at h4. White pawn at a3, white pawn at c3, white pawn at e3 and white pawn at g3. White rook at a2 and white rook at e2. White knight at b1, white bishop at c1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. Black to move.