rnb1k1nr/pp1p2p1/4p3/5p1p/P1pP4/b1N3PP/1PP1KPN1/R1BQ1B1R w kq - 2 10
FEN state: rnb1k1nr/pp1p2p1/4p3/5p1p/P1pP4/b1N3PP/1PP1KPN1/R1BQ1B1R w kq - 2 10 ; Best move: a1a3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7 and black pawn at g7. Black pawn at e6. Black pawn at f5 and black pawn at h5. White pawn at a4, black pawn at c4 and white pawn at d4. Black bishop at a3, white knight at c3, white pawn at g3 and white pawn at h3. White pawn at b2, white pawn at c2, white king at e2, white pawn at f2 and white knight at g2. 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 2. Full move number is 10. White to move.