Greetings from Eau Claire, Wisconsin! I’m up here chilling in my hotel room watching “Desperation” by Stephen King. Tomorrow I’ll be boothing at NoBrandCon and I’m totally pumped! Last night I stopped at home and a package was waiting for me. Inside were two Helicopter Cubes from Mefferts.
These Helicopter Cubesare addicting!
At first this puzzle looks like it turns like a Rubik’s 2×2 cube and that the corner wedges rotate but this puzzle actually twists by rotating the edges of the puzzle 180 degrees like this:
The puzzle can also transform and change shape. I haven’t had the chance to fully jumble the puzzle in this way but here is an idea of how it turns. Pretty cool huh?
After some playing I worked out a pretty good method of solving the Helicopter Cube. I only timed myself once and it took almost 3 minutes. I’m working on developing a set of algs as well as trying different methods. I haven’t researched how others are solving the cube but so far I’m pretty happy with the method I’ve developed on my own.
Here is a breakdown of how I solve this puzzle. Stop reading now if you want to keep the challenge for yourself
Jake’s Method for solving the Helicopter Cube
1. My first step is to match 4 center pieces on one side (intuitive):
2. Start placing top corner with adjacent center pieces (intuitive):
3. Repeat until first layer is complete (intuitive):
4. Solve remaining Center pieces(intuitive):
5. Permute corners:
I came up with an alg that cycles 3 corners UBR>UFL>UFR>UBR
I’m sure there is something shorter but this is the alg that I came up with on my own.
Yeah… long… I will try and dig up something shorter but using this I was able to position my remaining corners.
I figured out 2 more useful algs for permuting corners:
X PERM – Swaps UFR with UBL and UFL with UBR
= PERM – Swaps UFR with UFL and UBR with UBL
Please not that Permutations will effect Orientation
6. Orientate corners:
The alg I came up with effects the UFL, UBL, and UBR corners. Do this move 3 times:
If you have only 2 corners that need to be flipped, position one of the incorrect corners in UFR spot and do the previous alg. This will leave you with three corners you need to flip.
And thats it! I’ll practice and research some more algs, and update the solution when I find more details. Good luck and feel free to ask any questions about solving this puzzle.
This solution works for a cube that hasn’t transformed shape. I’m not sure if any unique cases come up when jumbling the cube.