High Voltage

Agh! You can get Zapped even if you're at a safe distance because you sway a little when you move the Draggables. Very annoying I was so close to finishing it.

Me too, five times now, zapped by the exact same zapper no matter how gently I pull the blocks.

Got it. Nineth attempt. The first time I was thinking that okay, awesome, what a great puzzle; I see exactly what meko did here! I can't wait to rave about the design... Hmm, I'm going to go put some ice packs on B now...

Mmh yes,I really don't know how to fix it...

Yes,

Spoiler

the difficult part is to avoid the zaps

Spoiler: Hint #1 - Winning without dying

There is only one block that allows B to stand on an edge that could match up with the win block.

Spoiler: Hint #2 - The sign you seek

The one block you want to find also can be identified with a curved horizontal rail.

@chemi
If you finish the level sacrifying B you complete only the 50% of the puzzle

Fun concept despite a little unstable. If you see it in a more positive way though, it would be a dual puzzle where you must get to the goal without being zapped, both while B is not moving and while he is dragged. The chances you may get inadvertently zapped could be significantly lowered if you only step onto the block @nGord mentioned at the very last move (instead of staying on that block all the way while you try to shift it towards the Win).

I gave it another try and I can confirm that it is completely safe if you only step onto the target draggable at the very last move (though it will increase the move count significantly).

Spoiler

The key here is to avoid (as much as possible) dragging that block towards the goal while B is on it -- since the inertia of B would easily cause him to get killed by the zapper 2 grids behind it. If you drag it perpendicularly he wouldn't get accidentally zapped (unless by another zapper on a nearby draggable -- which you have to be really careful with).

I have not tried to solve it by a perpendicular last move, but I believe it is possible if you could find out a way to step onto that block from the right side (instead of the front side).