r1b1kbr1/p1q4p/nppnp3/2Pp2p1/3Pp2P/5N2/PP3PP1/2RKQB1R w q - 0 17
FEN state: r1b1kbr1/p1q4p/nppnp3/2Pp2p1/3Pp2P/5N2/PP3PP1/2RKQB1R w q - 0 17 ; Best move: c5d6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black queen at c7 and black pawn at h7. Black knight at a6, black pawn at b6, black pawn at c6, black knight at d6 and black pawn at e6. White pawn at c5, black pawn at d5 and black pawn at g5. White pawn at d4, black pawn at e4 and white pawn at h4. White knight at f3. White pawn at a2, white pawn at b2, white pawn at f2 and white pawn at g2. White rook at c1, white king at d1, white queen at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 17. White to move.