Some oversights...
It seems like after the numbers are placed in the outer walls and the inner legs correctly, the relevance of number placement doesn't matter. There's no other stipulations for not repeating numbers. That's not much of a challenge once one realizes that. The game was designed well enough though, and loaded quickly for me ( I don't know why people would have problems with the ads... there in almost every game these days). All in all, 3/5, 7/10 stars.