Logic Masters Deutschland e.V.

I always want to post one of this, but I seldom find a developable idea. The idea comes from LKegel.

Standard sudoku rules applies. Fill the grid with numbers from 1 to 6 so each digit occurs exactly once in every row, column and 2x3 box.

Digits outside the grid shows the number of even cells in the first x cells, where x is the first digit in that direction.

I know it's a good idea when I see one. It takes the X part in the X-sum and replace the other part. So the question is, what else can be put there?

Digits outside the grid shows the sum of the biggest and smallest digits in the first x cells, where x is the first digit in that direction.

Before my noon nap, I ask Old Miles to make one combined with just showing the biggest digit (later turned out that it's just subset, so abandoned) But Old Miles take one step further, creating the next and most easy rule one.

Digits outside the grid appears in the first x cells, where x is the first digit in that direction. The one on the right is easier.

This puzzle is made by Old Miles from China. I think it's weird because of the low completion rate for a new variant. It definitely wasn't hard (a little) It's an X-sum variant, and the rule is simple but tricky to play with. It certainly got our attention.

the way we develop an idea basically is simplification. The only problem is we don't know if it would be feasible or solvable or fun. That's why we usually start with the 6X6 to test the fun level before moving to 9X9. The last idea definitely wouldn't work in 9X9 but a lot of fun in 6X6.

I know what you are thinking now, these three all deserve a solo entry, why together? Well, how hard can a 6X6 be(please don't answer this) And naming these puzzle is hard. Surely the completion rate would be low, but I really don't care. I'm a solver not a setter. I care more about how you think the idea is and how is the solving experience. As for the puzzles, a lot of them is made just for fun and for me (two cell kropki series is made for me and two other person on this site) I really hope you could get the same enjoyment as I did when solving the puzzle. So, enjoy.