r1bk1bn1/p2np1p1/1p4Nr/2pp1p1p/2Q3P1/q7/RP1PPP1P/1NB1KB1R b K - 2 13
FEN state: r1bk1bn1/p2np1p1/1p4Nr/2pp1p1p/2Q3P1/q7/RP1PPP1P/1NB1KB1R b K - 2 13 ; Best move: d5c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black knight at d7, black pawn at e7 and black pawn at g7. Black pawn at b6, white knight at g6 and black rook at h6. Black pawn at c5, black pawn at d5, black pawn at f5 and black pawn at h5. White queen at c4 and white pawn at g4. Black queen at a3. White rook at a2, white pawn at b2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White knight at b1, white bishop at c1, 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 2. Full move number is 13. Black to move.