r1bq1rk1/p2pppbp/Q1p3pn/1p6/7P/1nPP1N1R/P3PPP1/RNB1KB2 w Q - 2 12
FEN state: r1bq1rk1/p2pppbp/Q1p3pn/1p6/7P/1nPP1N1R/P3PPP1/RNB1KB2 w Q - 2 12 ; Best move: a2b3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black rook at f8 and black king at g8. Black pawn at a7, black pawn at d7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. White queen at a6, black pawn at c6, black pawn at g6 and black knight at h6. Black pawn at b5. White pawn at h4. Black knight at b3, white pawn at c3, white pawn at d3, white knight at f3 and white rook at h3. White pawn at a2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 12. White to move.