r2qk1nB/2pb4/4pP1p/1pbp4/1n3PP1/P4K1N/R2P2BP/1N1Q2R1 w q - 0 22
FEN state: r2qk1nB/2pb4/4pP1p/1pbp4/1n3PP1/P4K1N/R2P2BP/1N1Q2R1 w q - 0 22 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black knight at g8 and white bishop at h8. Black pawn at c7 and black bishop at d7. Black pawn at e6, white pawn at f6 and black pawn at h6. Black pawn at b5, black bishop at c5 and black pawn at d5. Black knight at b4, white pawn at f4 and white pawn at g4. White pawn at a3, white king at f3 and white knight at h3. White rook at a2, white pawn at d2, white bishop at g2 and white pawn at h2. White knight at b1, white queen at d1 and white rook at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 22. White to move.