2r1kb1r/pp2ppp1/2p2P2/n2p3p/Pq4P1/2PB3N/1P1P1P1P/RNBQK1R1 b k - 0 17
FEN state: 2r1kb1r/pp2ppp1/2p2P2/n2p3p/Pq4P1/2PB3N/1P1P1P1P/RNBQK1R1 b k - 0 17 ; Best move: b4d6
The current state of the chess board is: Black rook at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at c6 and white pawn at f6. Black knight at a5, black pawn at d5 and black pawn at h5. White pawn at a4, black queen at b4 and white pawn at g4. White pawn at c3, white bishop at d3 and white knight at h3. White pawn at b2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 17. Black to move.