r2qkbn1/2pp4/1p1Ppr1B/5p2/p6p/1PNP2Pp/P1P3bP/2RQKB1R b q - 1 23
FEN state: r2qkbn1/2pp4/1p1Ppr1B/5p2/p6p/1PNP2Pp/P1P3bP/2RQKB1R b q - 1 23 ; Best move: f6h6
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7 and black pawn at d7. Black pawn at b6, white pawn at d6, black pawn at e6, black rook at f6 and white bishop at h6. Black pawn at f5. Black pawn at a4 and black pawn at h4. White pawn at b3, white knight at c3, white pawn at d3, white pawn at g3 and black pawn at h3. White pawn at a2, white pawn at c2, black bishop at g2 and white pawn at h2. White rook at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 23. Black to move.