r2qkbnr/2p1p1p1/bpn2p2/QP1p4/2P1P1p1/P6P/R2P1PP1/1NB1KB1R b Kkq - 0 13
FEN state: r2qkbnr/2p1p1p1/bpn2p2/QP1p4/2P1P1p1/P6P/R2P1PP1/1NB1KB1R b Kkq - 0 13 ; Best move: c6a5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at e7 and black pawn at g7. Black bishop at a6, black pawn at b6, black knight at c6 and black pawn at f6. White queen at a5, white pawn at b5 and black pawn at d5. White pawn at c4, white pawn at e4 and black pawn at g4. White pawn at a3 and white pawn at h3. White rook at a2, white pawn at d2, white pawn at f2 and white pawn at g2. White knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. Black to move.