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"Klotski: Red Donkey" by Matt McCutchen (based on Klotski puzzle of uncertain origin)

added 19 Jun 2019 21:41
Shortest Solution
Length1149 moves
On10 Mar 2020 06:05

Comments (turn spoilers off)
20497 Klotski: Red Donkey Dave(2400)v2 (3219) Thu 23 Apr 2020 13:43  
  If this embedding can be broken, I have utterly failed to do so.

The interface is a bit wtf? for the first minute after opening the level but quickly resolves into something intuitive.

Fantastic work, Matt, nicely done and thank you!
20483 Klotski: Red Donkey noname (559) Tue 10 Mar 2020 06:05 SPOILER
  Added speedrun: 1149 moves (old: 1281).
Optimal, if Matt's embedding (and my code) is correct; my code is based on the correctness of the embedding.

I also decided to rate this level, with a scale comparable to that for other escape levels.
20402 Klotski: Red Donkey noname (559) Sat 05 Oct 2019 11:25 SPOILER
  When I first played this, I did not have a good idea what was going on with this level, even though I have tried Klotski before. I just had no idea how the 20 panel area corresponds to the play area, and no idea how the play area corresponds to a Klotski game. I only got the idea after reading the description at the author's webpage, but then the interface started to feel intuitive to me. I suppose the size restriction means that the interface is as good as it can be, so I guess I should not complain.

When I first tried Klotski, it took me a lot of effort to solve the Red Donkey, and I decided it's too time and energy consumming to invest into the game, so I stopped there. When this Escape version came out, I again was able to solve Red Donkey, but I gave up on the Trail (after lots of tries), and decided to look at the solution given by a link at the author's website. So I guess I'm not in a good position to judge the difficulty of both levels.

The solution website also contains the number of positions reachable from the start position, and as the number seems quite small in terms of computer brute force, I wrote a program to find the Escape-optimal solution for both Red Donkey and Trail. As these levels are relatively young on Escape, I think I would wait until they're older before releasing the solution.

Anyway, I guess I should be grateful that one can play Klotski at all with relatively intuitive controls as an Escape level, for the author must have taken lots of effort to make this happen. Thank you, Matt.
20333 Klotski: Red Donkey Matt (3200) Wed 19 Jun 2019 21:41  
  'Klotski: Red Donkey' uploaded by Matt:
Embedding of the Klotski puzzle "Red Donkey". See https://mattmccutchen.net/escape-klotski/ for more information.