r1k3nr/p3bppp/n2p3q/2p1p3/P1P5/1P1PPP2/4N1PP/RNBK1B1R b - - 0 12
FEN state: r1k3nr/p3bppp/n2p3q/2p1p3/P1P5/1P1PPP2/4N1PP/RNBK1B1R b - - 0 12 ; Best move: a6b4
The current state of the chess board is: Black rook at a8, black king at c8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at d6 and black queen at h6. Black pawn at c5 and black pawn at e5. White pawn at a4 and white pawn at c4. White pawn at b3, white pawn at d3, white pawn at e3 and white pawn at f3. White knight at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. Black to move.