Puzzle of the week #334

Level: 
2-Knight
Chess Diagram: 

[Event "Puzzle #334"][Date "2018.02.04"][Result "1-0"][SetUp "1"][FEN "2r3k1/q5pp/4p3/2rp1p2/1p1B1P2/1P1QP3/P1R3PP/6K1 w - - 0 1"]

In this week's position white (to move) has an opportunity to come from behind and obtain the winning advantage. Your tasks:
a) In what way is white behind in this position?
b) What should white use to obtain a winning advantage?
c) Please find the best winning line you can think of

Total available points for this puzzle is 20. The answers will be published next time together with puzzle #335.

Puzzle #333 solution:
Puzzle from lesson. This week's best answers are by the top scorers:
a) Black is better because:
- the white King is more exposed with the g-pawn missing
- the black King is castled
- black has a Bishop for a Knight and it can control the diagonals leading to Kg1

[Event "Puzzle #333"][Date "2018.01.28"][Result "0-1"][SetUp "1"][FEN "3q1rk1/5ppp/b7/8/6N1/1Q2P3/5P1P/1R4K1 b - - 0 1"]1... Qg5 2. Qa4 Be2 3. h3 h5 {White will lose the pinned Knight}

Correct solutions:
Matthew, Eric - 20 points
Lyvia - 19 points
Coby, Joey, Zhengyu - 14 points
Brian, Aiden - 12 points
Itamar - 11 points
Mengbai, Jacey - 10 points
Glyn, Blake - 6 points
Chris - 1 point

Standings:
Matthew - 50 points
Lyvia - 49 points
Eric - 47 points
Coby - 40 points
Zhengyu - 36 points
Jacey - 30 points
Brian - 28 points
Glyn - 27 points
Aiden, Joey - 23 points
Mengbai, Itamar - 21 points
Blake - 20 points
Lucas - 13 points
Walter - 10 points
Darius - 8 points
Chris - 3 points

Comment: 

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