r1bqr3/2ppkp1p/n4np1/pp2p3/P1P1P3/N2P3P/1P1NBPP1/R1BQKR2 w Q - 6 12
FEN state: r1bqr3/2ppkp1p/n4np1/pp2p3/P1P1P3/N2P3P/1P1NBPP1/R1BQKR2 w Q - 6 12 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black rook at e8. Black pawn at c7, black pawn at d7, black king at e7, black pawn at f7 and black pawn at h7. Black knight at a6, black knight at f6 and black pawn at g6. Black pawn at a5, black pawn at b5 and black pawn at e5. White pawn at a4, white pawn at c4 and white pawn at e4. White knight at a3, white pawn at d3 and white pawn at h3. White pawn at b2, white knight at d2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 6. Full move number is 12. White to move.