1rbq1bnr/pp1ppk1p/n5p1/2p2p2/8/2PN2P1/PP1PPP1P/RNBQKBR1 w Q - 4 7
FEN state: 1rbq1bnr/pp1ppk1p/n5p1/2p2p2/8/2PN2P1/PP1PPP1P/RNBQKBR1 w Q - 4 7 ; Best move: f1g2
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7, black king at f7 and black pawn at h7. Black knight at a6 and black pawn at g6. Black pawn at c5 and black pawn at f5. White pawn at c3, white knight at d3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, 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 4. Full move number is 7. White to move.