This is why it's important to come in here and read the puzzle titles, even though they give too much away sometimes.  I played the puzzle on the maine page and felt stuck because I couldn't see how to do anything more significant.

Seriously i don't get it. From the solution, all I am doing is exchanging a piece for a pawn. Could someone please explain how I am winning a pawn?

"Could someone please explain how I am winning a pawn?"

 

Black and white both start with 6 pieces and 7 pawns.

Black  ends  up with 5 pieces and 6 pawns.

White ends up with 5 pieces and 7 pawns.

  winning a pawn is very important

Got it, but is White actually winning in the final position? 3...Qxe8 4 Rxe8 Bxh3 5 Rb8 Re7! Black seems to have strong threats against the WK.

Puzzling puzzle but W does wind up with a pawn ahead AND a very weakened Blk King position

Un peón es muy importante, en los finales te das cuenta , muchas veces deciden las partidas....

Winning a pawn, at the cost of a Bishop?. This makes no sense what so ever, none of the moves in this puzzle make any sense at all.

Don1,

The attack is premature by black. 3...Qxe8 4 Rxe8 Bxh3 5 Rb8 Re7 is refuted by 6 f3! after which the attack fizzles out allowing white to capture the b-pawn. For example, 6... Re1+ 7 Kf2 Rh1 8 Bg1 leaves no way to force the point. 

You loose a Bishop for a knight and a pond

Not sure the final situation doesn't give a little advantage to black though... 

phoenixrjp, et. al.

The puzzle doesn't end after trading a bishop for a pawn. After the capture, white can then recover compensation for the bishop-- look a little deeper.

i get it, you just have to look ahead. white comes out on top.

nice puzzle

I got it, 1. Bxg6+! Kxg6 (1... fxg6 2. Qxf8) 2. Qe4+ Kg7 3. Qxe8, it's very easy.

rchopper

got a question, after 3...Qxe8 4. Rxe8 Bxh3 5. Rb8 Re7 6.f3 Re1 7.Kf2  why not 7...Rf1 check first, then 8...Rh1 winning the bishop?

Not 7... Rf1 because of the knight on d2. 8 Nxf1 and it's all over for black.

Easy.

is winning a pawn that important?

 

is not this board position impossible? white's black bishop has no way it could be on h2 with the kingside pawns in the position they are in...