r1b1k2r/ppnp3p/2p1ppp1/1Q5R/1q3N1n/P2P2b1/1PP1PP2/1K2RBN1 w q - 4 22
FEN state: r1b1k2r/ppnp3p/2p1ppp1/1Q5R/1q3N1n/P2P2b1/1PP1PP2/1K2RBN1 w q - 4 22 ; Best move: b5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at c7, black pawn at d7 and black pawn at h7. Black pawn at c6, black pawn at e6, black pawn at f6 and black pawn at g6. White queen at b5 and white rook at h5. Black queen at b4, white knight at f4 and black knight at h4. White pawn at a3, white pawn at d3 and black bishop at g3. White pawn at b2, white pawn at c2, white pawn at e2 and white pawn at f2. White king at b1, white rook at e1, white bishop at f1 and white knight at g1. Black queenside is the only castle move available. Half move number is 4. Full move number is 22. White to move.