Awful Sphinxters

There's a shortcut I discovered by mistake. Unless that's the solution?

Spoiler

Wait till the sliders go above the win block then slide it under them.

@Chris Hester I'm afraid (not to say I'm sure) that it's a shortcut

@delator77 I tried using B but he wouldn't fall off the manhole so I had to use my solution again.

@Chris Hester Yes, that's the danger of this level but I managed to complete the level as intended...

Super.

thanks!