In the following Queen and Pawn ending played in a blitz game at the ICC, Black had just greedily grabbed White’s a2 pawn which left Black with two extra pawns. This position is a classic example illustrating having two extra pawns is not the same as “being ahead” 2 extra pawns. As you can see, the high-powered StockFish chess analysis software, which is free of charge at the internet chess club, shoots to a winning evaluation for White after Black ill advisedly grabbed the button at a2.
Black’s vulnerable King compared to White’s safe King as well as White’s soon to be very mobile c pawn spell victory for the first player! A well known chess rule of thumb states that it is not the quantity of pawns BUT the quality of the pawns that matters in pure Queen and Pawn endings.
White’s soon to be passed c pawn exudes quality and will march unimpeded down the c file to produce a second lady.