rnbqk2r/p1pppp1p/n5pB/8/p3P3/R2P1P2/1bP2KPP/1N1Q1BNR w kq - 0 10
FEN state: rnbqk2r/p1pppp1p/n5pB/8/p3P3/R2P1P2/1bP2KPP/1N1Q1BNR w kq - 0 10 ; Best move: a3a4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black knight at a6, black pawn at g6 and white bishop at h6. Black pawn at a4 and white pawn at e4. White rook at a3, white pawn at d3 and white pawn at f3. Black bishop at b2, white pawn at c2, white king at f2, white pawn at g2 and white pawn at h2. White knight at b1, 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 10. White to move.