rnb2kr1/p1pp1ppp/3bp3/1p3P2/P1P2P2/8/RP1PK1PP/1NB1QBNR w - - 1 10
FEN state: rnb2kr1/p1pp1ppp/3bp3/1p3P2/P1P2P2/8/RP1PK1PP/1NB1QBNR w - - 1 10 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black bishop at d6 and black pawn at e6. Black pawn at b5 and white pawn at f5. White pawn at a4, white pawn at c4 and white pawn at f4. White rook at a2, white pawn at b2, white pawn at d2, white king at e2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 10. White to move.