r1bq2kr/pQn1b1pp/5p2/2ppp2P/2P5/P4N2/nP1P1P2/RN2KBR1 w Q - 1 17
FEN state: r1bq2kr/pQn1b1pp/5p2/2ppp2P/2P5/P4N2/nP1P1P2/RN2KBR1 w Q - 1 17 ; Best move: b7b3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at g8 and black rook at h8. Black pawn at a7, white queen at b7, black knight at c7, black bishop at e7, black pawn at g7 and black pawn at h7. Black pawn at f6. Black pawn at c5, black pawn at d5, black pawn at e5 and white pawn at h5. White pawn at c4. White pawn at a3 and white knight at f3. Black knight at a2, white pawn at b2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 17. White to move.