rnb2b1r/pp1kpppp/2p4n/1N1pP3/1P6/q4NPP/PBPPQP2/1R2KB1R b K - 0 12
FEN state: rnb2b1r/pp1kpppp/2p4n/1N1pP3/1P6/q4NPP/PBPPQP2/1R2KB1R b K - 0 12 ; Best move: a3a6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black king at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black knight at h6. White knight at b5, black pawn at d5 and white pawn at e5. White pawn at b4. Black queen at a3, white knight at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2, white queen at e2 and white pawn at f2. White rook at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 12. Black to move.