r1bqkbnr/ppp1p1p1/8/2Np1p2/n1P3Pp/3PP2N/PP2KP1P/R1BQ1B1R w kq - 0 10
FEN state: r1bqkbnr/ppp1p1p1/8/2Np1p2/n1P3Pp/3PP2N/PP2KP1P/R1BQ1B1R w kq - 0 10 ; Best move: d1a4
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, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7 and black pawn at g7. White knight at c5, black pawn at d5 and black pawn at f5. Black knight at a4, white pawn at c4, white pawn at g4 and black pawn at h4. White pawn at d3, white pawn at e3 and white knight at h3. White pawn at a2, white pawn at b2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 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.