1rb1kb1r/p5pQ/4Pn2/1ppN4/1P1pP3/2NP4/1PPBP1KP/5B1R b k - 12 23
FEN state: 1rb1kb1r/p5pQ/4Pn2/1ppN4/1P1pP3/2NP4/1PPBP1KP/5B1R b k - 12 23 ; Best move: h8h7
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at g7 and white queen at h7. White pawn at e6 and black knight at f6. Black pawn at b5, black pawn at c5 and white knight at d5. White pawn at b4, black pawn at d4 and white pawn at e4. White knight at c3 and white pawn at d3. White pawn at b2, white pawn at c2, white bishop at d2, white pawn at e2, white king at g2 and white pawn at h2. White bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 12. Full move number is 23. Black to move.