r1b2br1/2qkpppp/2np4/ppp3Qn/N5PN/BP1P3B/P1P1PP1P/R3K1R1 w Q - 12 16
FEN state: r1b2br1/2qkpppp/2np4/ppp3Qn/N5PN/BP1P3B/P1P1PP1P/R3K1R1 w Q - 12 16 ; Best move: g4h5
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at g8. Black queen at c7, black king at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at c6 and black pawn at d6. Black pawn at a5, black pawn at b5, black pawn at c5, white queen at g5 and black knight at h5. White knight at a4, white pawn at g4 and white knight at h4. White bishop at a3, white pawn at b3, white pawn at d3 and white bishop at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 12. Full move number is 16. White to move.