Puzzle of the week #348

Level: 
2-Knight
Chess Diagram: 

[Event "Puzzle #348"][Date "2018.05.20"][Result "1-0"][SetUp "1"][FEN "2Q5/8/8/8/8/8/4p2K/5k2 w - - 0 1"]

Queen versus pawn endgames could take a number of moves to reach checkmate; however if you know the plan to get there, it is not that hard. Your tasks:
a) In what way is this endgame different from the ones we did in class?
b) White to move and win as soon as possible

Total available points for this puzzle is 15. The answers will be published next time together with puzzle #349.

Puzzle #347 solution:
Endgame puzzle, 2010. This week's best answers are provided by only three students as shown below:
a) The position is form the endgame

[Event "Puzzle #347"][Date "2018.05.13"][Result "1-0"][SetUp "1"][FEN "8/6P1/8/8/8/5k1p/8/4K3 w - - 0 1"]1. g8=Q h2 2. Qd5+ {Pushes black's King away from the g2-square and blocks h2-pawn from promoting} Kg3 3. Qh1 Kh3 4. Kf2 Kg4 5. Qxh2

Correct solutions:
Coby, Walter, Zhengyu - 15 points
Blake, Glyn - 10 points
Joey, Aiden, Mengbai, Eric, Jacey, Brian, Lucas, Matthew - 7 points
Lyvia, Steven - 6 points

Standings:
Joey - 82 points
Matthew - 81 points
Lyvia - 79 points
Coby - 75 points
Eric - 74 points
Aiden - 71 points
Walter, Zhengyu - 68 points
Mengbai - 46 points
Glyn - 45 points
Blake - 43 points
Brian - 38 points
Lucas - 34 points
Jacey - 24 points
Itamar - 15 points
Steven - 14 points
Chris - 7 points

Comment: 

Queen versus pawn