1r2kb1r/pq2pppp/1p2bQ2/2p5/2Pp3P/NP1P2n1/P2P1P2/1RBK1BNR b k - 6 17
FEN state: 1r2kb1r/pq2pppp/1p2bQ2/2p5/2Pp3P/NP1P2n1/P2P1P2/1RBK1BNR b k - 6 17 ; Best move: g7f6
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black queen at b7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6, black bishop at e6 and white queen at f6. Black pawn at c5. White pawn at c4, black pawn at d4 and white pawn at h4. White knight at a3, white pawn at b3, white pawn at d3 and black knight at g3. White pawn at a2, white pawn at d2 and white pawn at f2. White rook at b1, white bishop at c1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 6. Full move number is 17. Black to move.