4kbnr/1bpqpp2/r1n4p/p2p2p1/3P2P1/p1P1PP2/PP2K2P/R1BQ1BNR b k - 0 12
FEN state: 4kbnr/1bpqpp2/r1n4p/p2p2p1/3P2P1/p1P1PP2/PP2K2P/R1BQ1BNR b k - 0 12 ; Best move: a6b6
The current state of the chess board is: Black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black bishop at b7, black pawn at c7, black queen at d7, black pawn at e7 and black pawn at f7. Black rook at a6, black knight at c6 and black pawn at h6. Black pawn at a5, black pawn at d5 and black pawn at g5. White pawn at d4 and white pawn at g4. Black pawn at a3, white pawn at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white pawn at b2, white king at e2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 12. Black to move.