It's the same rules really: a row/column with a 1 means that you need to keep 1 block from that row/column. The same with 10.
Crikey - this is very, very good. An unexpected beauty on a Sunday. Me and my kids were just playing Boomlings Matchup and this followed on beautifully. Fantastic.
I'm so glad that you and your kids are enjoying the game. Oh! Cube is a very different game from the recent Puzzle Restorer, but it has the same charming quality that makes you smile.