1n2k1nr/rpq5/p1ppb1p1/3B1p1p/2PP1b2/PP2PPpP/1K6/R1BQ2R1 b k - 1 23
FEN state: 1n2k1nr/rpq5/p1ppb1p1/3B1p1p/2PP1b2/PP2PPpP/1K6/R1BQ2R1 b k - 1 23 ; Best move: c6d5
The current state of the chess board is: Black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at b7 and black queen at c7. Black pawn at a6, black pawn at c6, black pawn at d6, black bishop at e6 and black pawn at g6. White bishop at d5, black pawn at f5 and black pawn at h5. White pawn at c4, white pawn at d4 and black bishop at f4. White pawn at a3, white pawn at b3, white pawn at e3, white pawn at f3, black pawn at g3 and white pawn at h3. White king at b2. White rook at a1, white bishop at c1, white queen at d1 and white rook at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 23. Black to move.