r1b1kb1r/pp2q1pp/8/3P1P2/2PnpN1P/P3K2R/R2P1P1n/1NBQ1B2 b kq - 2 17
FEN state: r1b1kb1r/pp2q1pp/8/3P1P2/2PnpN1P/P3K2R/R2P1P1n/1NBQ1B2 b kq - 2 17 ; Best move: d4f5
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 h8. Black pawn at a7, black pawn at b7, black queen at e7, black pawn at g7 and black pawn at h7. White pawn at d5 and white pawn at f5. White pawn at c4, black knight at d4, black pawn at e4, white knight at f4 and white pawn at h4. White pawn at a3, white king at e3 and white rook at h3. White rook at a2, white pawn at d2, white pawn at f2 and black knight at h2. White knight at b1, white bishop at c1, white queen at d1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 17. Black to move.