Logic Masters Deutschland e.V.

am 14. Juli 2022, 17:25 Uhr von Richard
Added link and tag for online solving. Thx bbutrosghali!

am 10. Mai 2021, 09:43 Uhr von bbutrosghali
https://f-puzzles.com/?id=yzc5qd7r

am 3. Mai 2020, 07:44 Uhr von Richard
@Circleconstant: yes, that's another way of saying this. Actually the instruction might be even better referring to renban groups. I simply took over the instructions from the German Sudoku Championship...
I am happy to see that you were able to solve the puzzle now!

am 2. Mai 2020, 21:02 Uhr von Circleconstant314
@Richard: So in other words, if a marked diagonal has more than two grey cells then all of those grey cells alongside that marked diagonal form a (possibly disconnected) renban region which must contain either a 1 or a 9. Got it!

am 2. Mai 2020, 20:00 Uhr von Richard
@Circlestant314: It refers to the highest or the lowest theoretical sum. Given the fact that digits in grey cells on the same diagonal may not repeat.
So the long diagonal top right to bottom left contains 7 grey cells. Those cells contain either the series 1-7 (lowest) or the series 3-9 (highest), without repetition.
This is regardless of the digits in R4C6 and R6C4. They don't play any role.
Hope this clarifies the rules enough.
Goodluck!

am 2. Mai 2020, 19:11 Uhr von Circleconstant314
What does "highest possible sum" and "lowest possible sum" mean, here? Does it refer to the maximum or minimum sums given the digits in the grid, or does it refer to the theoretical maximum or minimum?

EDIT: Additionally, if there are two or more disjoint groups of grey cells alongside a drawn diagonal, is it so that the non-repeating property applies to all of these cells within each group or alongside the whole drawn diagonal? For example, the leading diagonal from R1C1 to R9C9 has one group of grey cells in box 1, and one group of grey cells in boxes 5 and 9. Does this mean that, say, R5C5 can be the same digit as R2C2 since the grey cells are disconnected alongside the diagonal, or is it the case that R5C5 cannot be the same digit as R2C2?

am 27. April 2020, 13:13 Uhr von rob
Das Rätsel ist klasse, die Darstellung aber ziemlich verwirrend. Ich habe ständig falsch geschlossen wegen Weißfeldern mit Diagonalstrich.

Vielleicht würde es der Variante gut tun, wenn die Diagonalen nur in den grauen Zellen dargestellt wären? Oder Pfeile von außen? (Gar keine Diagonalstriche geht nicht, weil manche Diagonalen von Graufeldern ausgeschlossen werden müssen.)

am 28. Februar 2017, 13:41 Uhr von ohm0123
Good.

am 14. September 2016, 06:01 Uhr von Richard
@Eisbär: Yep, but in the list it's close to three. ;-)

am 13. September 2016, 23:11 Uhr von Eisbär
Only two stars?

am 22. Juni 2016, 13:41 Uhr von zuzanina
Oh, Mann, ich bin echt ein bisschen blöd... ;-)

am 21. Juni 2016, 19:57 Uhr von Richard
New image uploaded.

am 21. Juni 2016, 17:05 Uhr von marcmees
eens de instructies doorgedrongen, makkelijk op te lossen. Hij blijft wel mooi.

am 21. Juni 2016, 15:59 Uhr von zhergan
Hi Richard. Nice idea. This one is a different kind of renban sudoku, where renban groups are seperated along diagonals. Thanks :)

am 21. Juni 2016, 12:15 Uhr von Richard
There is a typo in the puzzle. R5C6 must be a 4 instead of a 7. The rest of the puzzle is correct. I will upload a new image tonight. Sorry for all inconveniences...

am 21. Juni 2016, 11:35 Uhr von Richard
I have created and tested it already weeks ago, so it isn't top of mind at the moment. I am not able to check the puzzle until the beginning of the evening, but I will do so as soon as possible.

am 21. Juni 2016, 07:43 Uhr von pin7guin
@zuzanina: Es ist kein Diagonal-Sudoku...

am 21. Juni 2016, 06:11 Uhr von Richard
@zuzanina: There is nothing written in the instructions about white cells on diagonals. They may contain any digit.

am 21. Juni 2016, 02:02 Uhr von zuzanina
So, wie ich die Regeln verstehe, müssten in den beiden weißen Zellen auf der zweiten Hauptdiagonalen die Ziffern 1+2 oder 8+9 stehen. Beides ist nicht möglich. Was verstehe ich falsch?