rnb1k2r/2p1n1pp/pp1p4/P3pP2/1P5q/R1PK4/3P2Pb/1NBQ1BNR b kq - 4 13
FEN state: rnb1k2r/2p1n1pp/pp1p4/P3pP2/1P5q/R1PK4/3P2Pb/1NBQ1BNR b kq - 4 13 ; Best move: c8f5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at c7, black knight at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black pawn at d6. White pawn at a5, black pawn at e5 and white pawn at f5. White pawn at b4 and black queen at h4. White rook at a3, white pawn at c3 and white king at d3. White pawn at d2, white pawn at g2 and black bishop at h2. White knight at b1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 13. Black to move.