1n2kbn1/2q1pp2/prN1b1pr/1p1p3p/2PP3P/PQ3N2/1P2PP2/1RB1KB1R w K - 1 17
FEN state: 1n2kbn1/2q1pp2/prN1b1pr/1p1p3p/2PP3P/PQ3N2/1P2PP2/1RB1KB1R w K - 1 17 ; Best move: c4d5
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black knight at g8. Black queen at c7, black pawn at e7 and black pawn at f7. Black pawn at a6, black rook at b6, white knight at c6, black bishop at e6, black pawn at g6 and black rook at h6. Black pawn at b5, black pawn at d5 and black pawn at h5. White pawn at c4, white pawn at d4 and white pawn at h4. White pawn at a3, white queen at b3 and white knight at f3. White pawn at b2, white pawn at e2 and white pawn at f2. White rook 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 1. Full move number is 17. White to move.