4kbnr/pr3pp1/3pbn2/2p3Np/1p3pP1/3RQ2P/Pq2P1B1/R1B2K2 w k - 8 23
FEN state: 4kbnr/pr3pp1/3pbn2/2p3Np/1p3pP1/3RQ2P/Pq2P1B1/R1B2K2 w k - 8 23 ; Best move: c1b2
The current state of the chess board is: Black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black rook at b7, black pawn at f7 and black pawn at g7. Black pawn at d6, black bishop at e6 and black knight at f6. Black pawn at c5, white knight at g5 and black pawn at h5. Black pawn at b4, black pawn at f4 and white pawn at g4. White rook at d3, white queen at e3 and white pawn at h3. White pawn at a2, black queen at b2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1 and white king at f1. Black kingside is the only castle move available. Half move number is 8. Full move number is 23. White to move.