Steven, after having made the square block I lose the bomb in order to regain the othe square glue block that was used to access the elevator, I can no longer move the diagonal block and one of the right blocks is inaccessible on top of the button in the far right corner. Am I still able to progress with these restrictions?
It sounds like you are making the square block correctly (those restrictions are all planned) but you may be stuck unless you already have a diagonal made. You can make the first diagonal at the same time as the square block. You shouldn't need to change the way you make the square block much, it just requires some extra setup. Let me know if you want more details.
I’m wondering if you actually think anybody would be capable of solving this puzzle without help.
Not sure what you meant when you said you can create the square block and the first diagonal at the same time. Literally, the same time?
Just to be clear, my setup sends the block headed to the upper left button directly. The path to the lower button is one space longer so there is a stacked block to account for the timing. This path hits the button from the right side (also can be changed to hit from above which has the effect of 2 blocks being pushed downward when the piston fires.) Either way what I’m left with after making the square are the two down blocks and one right block on the platform. The left block that I pushed onto the diagonal to put the other 2 blocks is motion is now resting on the right extension of the middle pusher. The pistons of the middle and right pushers are fired. Can’t go off of the platform to rearrange anything without being stuck on the ground level. What is left other than to somehow (still inconceivable to me) push blocks down the lower path and trigger the unused piston?
Make sure both blocks you are using to make the square block are sticky. You can put a downward block on top of one and a rightward block on top of the other and the diagonal will be formed directly on top of the square block when the pistons trigger. The extra setup is moving the rightward block over to one of the pistons before getting onto the platform with the blocks. The third piston is for making the second diagonal, which happens after dropping back down from the platform.
I'm not super happy with how the puzzle turned out. I missed a lot of moves (mostly alternate ways to form the diagonals) and it ended up being more difficult and frustrating than intended, though I do know of two people who have solved the latest version without help.