King and pawn end game

For those of you who actually gave my last puzzle (concept of opposition) the time of day, its time to show what you've learned (or remembered).

You're playing black and draw is your only purpose to keep playing, White to move:

1. Kf2 Ke5 2. Kf3 Kf5 3. e4+ Ke5 4. Ke3 Ke6! 5. Kf4 Kf6 6. e5+ Ke6 7. Ke4 Ke7 8. Kd5 Kd7 9. e6+ Ke7 10. Ke5 Ke8! 11. Ke5?! Ke7 12. Ke5 Ke8 13. Kf6 Kf8 14. e7+ Ke8 15. Ke6

Result: 1/2 1/2 

All moves also work in the D file instead of F, so there are 2 solutions, but they are equivalent. Also, move 11 is only a trap, to see if black makes a mistake, if you didn't use that on you solution, it might still be right - I've decided to let it in my list, because it's the original puzzle.

Actually, this position puts a lot of preassure on Blacks shoulder. Any mistakes and the game is over. Blunders like 2...Kf5 or 2...Kd5 often happen and might be repeated every single threefolded moves. Black needs to plan the draw from the first move and make no mistakes. I do believe for the ones that already solved the problem, it was an easy job, specially because there aren't that many possible moves to consider.

Just as an experiment, I've decided to change this, from a puzzle to an image, so that people attempting to solve it, force themselves to think the whole solution through.

Please let me know what your impressions are.

Looking forward to hearing from the community... 

I would actually characterize this position as being somewhat forgiving, because 1...Kd5 and 1...Kf5 draw despite being less accurate than 1...Ke5. But, once the pawn reaches the sixth rank it's exactly as you say... perfect technique is required.

It's ironic you posted a pawn ending tonight, as I just played one today. They look so simple and yet they can be deceptively complex.