r3kb2/p1Pbpppr/1Q6/3pPnN1/1n2P2p/BP6/P2PK1PP/R4B1R w q - 1 22
FEN state: r3kb2/p1Pbpppr/1Q6/3pPnN1/1n2P2p/BP6/P2PK1PP/R4B1R w q - 1 22 ; Best move: b6b8
The current state of the chess board is: Black rook at a8, black king at e8 and black bishop at f8. Black pawn at a7, white pawn at c7, black bishop at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black rook at h7. White queen at b6. Black pawn at d5, white pawn at e5, black knight at f5 and white knight at g5. Black knight at b4, white pawn at e4 and black pawn at h4. White bishop at a3 and white pawn at b3. White pawn at a2, white pawn at d2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, 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 22. White to move.