r1bq2nr/1ppk1p2/B3p1np/3P2p1/1PP3QP/5NP1/1P1P1P2/RNB2RK1 b - - 0 12
FEN state: r1bq2nr/1ppk1p2/B3p1np/3P2p1/1PP3QP/5NP1/1P1P1P2/RNB2RK1 b - - 0 12 ; Best move: a8a6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at d7 and black pawn at f7. White bishop at a6, black pawn at e6, black knight at g6 and black pawn at h6. White pawn at d5 and black pawn at g5. White pawn at b4, white pawn at c4, white queen at g4 and white pawn at h4. White knight at f3 and white pawn at g3. White pawn at b2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white rook at f1 and white king at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. Black to move.