rnb1kr2/pp4p1/2pp4/2bB1pqp/2Pp4/PNN1PnPP/1P1P4/R1BK3R w q - 4 17
FEN state: rnb1kr2/pp4p1/2pp4/2bB1pqp/2Pp4/PNN1PnPP/1P1P4/R1BK3R w q - 4 17 ; Best move: d5f3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at f8. Black pawn at a7, black pawn at b7 and black pawn at g7. Black pawn at c6 and black pawn at d6. Black bishop at c5, white bishop at d5, black pawn at f5, black queen at g5 and black pawn at h5. White pawn at c4 and black pawn at d4. White pawn at a3, white knight at b3, white knight at c3, white pawn at e3, black knight at f3, white pawn at g3 and white pawn at h3. White pawn at b2 and white pawn at d2. White rook at a1, white bishop at c1, white king at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 4. Full move number is 17. White to move.