r3qbnr/ppp1pk1p/2n2p2/6pP/4p1Q1/NP6/P1PP1PPN/R1B1KBR1 w Q - 0 10
FEN state: r3qbnr/ppp1pk1p/2n2p2/6pP/4p1Q1/NP6/P1PP1PPN/R1B1KBR1 w Q - 0 10 ; Best move: g4e4
The current state of the chess board is: Black rook at a8, black queen at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7, black king at f7 and black pawn at h7. Black knight at c6 and black pawn at f6. Black pawn at g5 and white pawn at h5. Black pawn at e4 and white queen at g4. White knight at a3 and white pawn at b3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white knight at h2. White rook at a1, white bishop at c1, 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 0. Full move number is 10. White to move.