r1b1kbr1/3ppp1p/p1n5/2p1qBp1/1Pp1P1n1/P7/R2PNP1P/1N1QKR2 w q - 0 17
FEN state: r1b1kbr1/3ppp1p/p1n5/2p1qBp1/1Pp1P1n1/P7/R2PNP1P/1N1QKR2 w q - 0 17 ; Best move: f5g4
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 d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6 and black knight at c6. Black pawn at c5, black queen at e5, white bishop at f5 and black pawn at g5. White pawn at b4, black pawn at c4, white pawn at e4 and black knight at g4. White pawn at a3. White rook at a2, white pawn at d2, white knight at e2, white pawn at f2 and white pawn at h2. White knight at b1, white queen at d1, white king at e1 and white rook at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 17. White to move.