Would you happen to know of a minimalistic puzzle approach? I've read about some, like at least 17 squares and 8 out of 9 numbers presented. It didn't actuall

Would you happen to know of a minimalistic puzzle approach? I've read about some, like at least 17 squares and 8 out of 9 numbers presented. It didn't actually worked out in tests, so I abandoned that approach. At some point, testing theories became a viable way of generating puzzles, so I went with the random approach instead. But of course, for an efficient program, developing parameters for minimalist is best. I have parameters that increase the success rate to 25% or so...