a new level

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WayneCa
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Joined: 2014-07-13
a new level

I have been trying to create more difficult puzzles. My latest attempt has gone through 5 evolutions. The way I do it is to create the level, then solve it, then make it more difficult. Version 5 of this puzzle may be unsolvable, but it may just be that I am not a good enough solver to solve it. YASC's solver returns "Unsolved" after a couple of minutes. Takaken solver won't solve it because it has more than 64 boxes. I would like for the more adept solvers in this forum to look at the puzzle and try to solve it, and tell me if it is just more difficult, or if it is truly unsolvable.


  

WayneCa
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Joined: 2014-07-13

I made a change to the puzzle that made it solvable. I am still not certain that the previous version is not solvable, but it looks more and more like it is unsolvable.


  

ben
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Joined: 2012-04-02

The level in the #1 post is definitely unsolvable.
This is very easy to see.
If you try to push it, it doesn't take long to convince yourself that there's no way you can get to the the right without deadlock.
This can be seen in less than a minute.

You can also simplify the level to make it easier to see:


  

The level can be further simplified as well, but there's no need to.