2bqk1nr/2p1p1b1/n2p1p2/rp4p1/pP2P2p/N3Q2P/P1PP1PPN/R3KB1R w KQk - 0 13
FEN state: 2bqk1nr/2p1p1b1/n2p1p2/rp4p1/pP2P2p/N3Q2P/P1PP1PPN/R3KB1R w KQk - 0 13 ; Best move: b4a5
The current state of the chess board is: Black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at e7 and black bishop at g7. Black knight at a6, black pawn at d6 and black pawn at f6. Black rook at a5, black pawn at b5 and black pawn at g5. Black pawn at a4, white pawn at b4, white pawn at e4 and black pawn at h4. White knight at a3, white queen at e3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white knight at h2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 0. Full move number is 13. White to move.