r1bqkbr1/2ppn1np/pp3p2/3p4/2Q4P/PPN1PpPN/R1PBB3/5K1R b q - 3 17
FEN state: r1bqkbr1/2ppn1np/pp3p2/3p4/2Q4P/PPN1PpPN/R1PBB3/5K1R b q - 3 17 ; Best move: d5c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at c7, black pawn at d7, black knight at e7, black knight at g7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black pawn at f6. Black pawn at d5. White queen at c4 and white pawn at h4. White pawn at a3, white pawn at b3, white knight at c3, white pawn at e3, black pawn at f3, white pawn at g3 and white knight at h3. White rook at a2, white pawn at c2, white bishop at d2 and white bishop at e2. White king at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 3. Full move number is 17. Black to move.