r2qk3/pp1bp1b1/n4prn/3p1PpB/1P2PQ2/P1pP3P/2P3P1/RNBK2NR b q - 2 17
FEN state: r2qk3/pp1bp1b1/n4prn/3p1PpB/1P2PQ2/P1pP3P/2P3P1/RNBK2NR b q - 2 17 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black queen at d8 and black king at e8. Black pawn at a7, black pawn at b7, black bishop at d7, black pawn at e7 and black bishop at g7. Black knight at a6, black pawn at f6, black rook at g6 and black knight at h6. Black pawn at d5, white pawn at f5, black pawn at g5 and white bishop at h5. White pawn at b4, white pawn at e4 and white queen at f4. White pawn at a3, black pawn at c3, white pawn at d3 and white pawn at h3. White pawn at c2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 17. Black to move.