r1b1kbnr/p2np1p1/1pp2p1p/1q1p2P1/P2P3P/1P3P2/2P1PK2/R1BQ1BNR w kq - 0 12
FEN state: r1b1kbnr/p2np1p1/1pp2p1p/1q1p2P1/P2P3P/1P3P2/2P1PK2/R1BQ1BNR w kq - 0 12 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at d7, black pawn at e7 and black pawn at g7. Black pawn at b6, black pawn at c6, black pawn at f6 and black pawn at h6. Black queen at b5, black pawn at d5 and white pawn at g5. White pawn at a4, white pawn at d4 and white pawn at h4. White pawn at b3 and white pawn at f3. White pawn at c2, white pawn at e2 and white king at f2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move.