r3qbnr/1ppbk1p1/p1n1p3/1N1p1p1p/2B1P2N/2QP2P1/PPP1KP1P/R1B4R b - - 0 12
FEN state: r3qbnr/1ppbk1p1/p1n1p3/1N1p1p1p/2B1P2N/2QP2P1/PPP1KP1P/R1B4R b - - 0 12 ; Best move: a6b5
The current state of the chess board is: Black rook at a8, black queen at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black bishop at d7, black king at e7 and black pawn at g7. Black pawn at a6, black knight at c6 and black pawn at e6. White knight at b5, black pawn at d5, black pawn at f5 and black pawn at h5. White bishop at c4, white pawn at e4 and white knight at h4. White queen at c3, white pawn at d3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at c2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. Black to move.