r1bqkb1r/3npppp/3p4/1pp2n2/2P5/N2P4/PPQ1PPPP/R1B1KBNR w KQkq - 0 12
FEN state: r1bqkb1r/3npppp/3p4/1pp2n2/2P5/N2P4/PPQ1PPPP/R1B1KBNR w KQkq - 0 12 ; Best move: a3b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black knight at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at d6. Black pawn at b5, black pawn at c5 and black knight at f5. White pawn at c4. White knight at a3 and white pawn at d3. White pawn at a2, white pawn at b2, white queen at c2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move.