r1b3n1/ppp2p2/2n1k1pr/3pp2p/2PP3P/b2QqPP1/PP2P2N/RNB1KB1R w Q - 3 17
FEN state: r1b3n1/ppp2p2/2n1k1pr/3pp2p/2PP3P/b2QqPP1/PP2P2N/RNB1KB1R w Q - 3 17 ; Best move: c4d5
The current state of the chess board is: Black rook at a8, black bishop at c8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7 and black pawn at f7. Black knight at c6, black king at e6, black pawn at g6 and black rook at h6. Black pawn at d5, black pawn at e5 and black pawn at h5. White pawn at c4, white pawn at d4 and white pawn at h4. Black bishop at a3, white queen at d3, black queen at e3, white pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at e2 and white knight at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 3. Full move number is 17. White to move.