rnb1kr2/pBp2p1p/5qpn/P2Pb3/RP1p2PQ/2P2P1P/2K5/2B2NNR b q - 0 23
FEN state: rnb1kr2/pBp2p1p/5qpn/P2Pb3/RP1p2PQ/2P2P1P/2K5/2B2NNR b q - 0 23 ; Best move: f6h4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at f8. Black pawn at a7, white bishop at b7, black pawn at c7, black pawn at f7 and black pawn at h7. Black queen at f6, black pawn at g6 and black knight at h6. White pawn at a5, white pawn at d5 and black bishop at e5. White rook at a4, white pawn at b4, black pawn at d4, white pawn at g4 and white queen at h4. White pawn at c3, white pawn at f3 and white pawn at h3. White king at c2. White bishop at c1, white knight at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 23. Black to move.