[_fp5w]

Yeah, totally get your point. Generating one is inexpensive, maybe 1 ms to get it cranking. It's entirely possible that looping through untampered RNG combinations until a hole opens is more efficient than scrolling the field around.

The algorithm to locate the biggest hole on a 1,200 tile board takes around 45ms and I'm stubbornly itching to use it one way or another. But I'll see what's a more sane solution over shifting fields.