rnb1k3/4npp1/2NbP2r/pp2PP1P/1q6/8/PP1PK1BP/RNBQ3R w q - 1 16
FEN state: rnb1k3/4npp1/2NbP2r/pp2PP1P/1q6/8/PP1PK1BP/RNBQ3R w q - 1 16 ; Best move: c6b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black king at e8. Black knight at e7, black pawn at f7 and black pawn at g7. White knight at c6, black bishop at d6, white pawn at e6 and black rook at h6. Black pawn at a5, black pawn at b5, white pawn at e5, white pawn at f5 and white pawn at h5. Black queen at b4. White pawn at a2, white pawn at b2, white pawn at d2, white king at e2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 16. White to move.