New answers tagged

1

There is no need to guess, also proves that solution is unique. L stands for left sudoku, R for the right one. (X,Y) means the X is in L, Y in R, the rest should be self-evident. Formatting of sudokus is crappy but I believe it should be clear enough. Then L/R, horizontal lines are not drawn. Then Solution of L/R at this point is Now notice that At ...


8

I believe this is the solution :) Some information on how I solved it:


1

I got the same answer as hexomino except the right sudoku is so I guess there are at least 2 answers. I like this puzzle idea though!


10

The name of this puzzle is I solved the Sudoku, then learned from the other answers here, that the next step is to solve a Yajilin, a puzzle type I haven't heard of before. As these both steps are already covered in the other answers, I only give the combined solution here: Now the last step is *Addition:


11

I think this is the answer Partial Reasoning


9

You can apply a technique called Simple Colouring. I have underlined some of the candidate ones with either red or blue. The idea is that, supposing the red ones are correct, the blue ones must be false. If the red one in the top-center box is correct, the blue one in the top-right box must be false, which puts a definite red one into the lower-right box, ...


8

Partial. Finished the second puzzle, not sure how to read the name of the puzzle from it. Worked Solution.


1

Sudoku (solved independently) Next step (credits to @jafe in CG’s answer’s comments) Yajilin Numbers shaded:


8

This is just a work in progress. The Sudoku looks like this: That means the colored numbers are: The surrounding colors looks I have yet to figure out the significance of those numbers, but I'm working on it. The colored numbers could be placed like this (according to their relative positions): The positions of the red and yellow numbers are the only ...


2

On the center rows, there are four squares which are either a 1 or a 5. Now, what would happen if you put a Schematic:


0

Look at the middle three squares. The unknown numbers are . . . | 17 23 237 | 13 . . 37 . 12 | . . . | 13 . 27 37 12 . | 178 238 . | . . 27 If you guess any single number in the middle row, that fixes almost everything else in these squares: either . . . | 1 2 7 | 3 . . 3 . 2 | . . . | 1 . ...


2

For a logically complete version of Jens's answer (showing that the solution is unique as well as that it exists), try That leads to which is impossible. So, by contradiction, that cell must be


1

thus the solution then becomes


3

In the lower right 3x3 square, try putting a


5

My best solution so far is This is done with the following thermometer Here are three other thermometers with the same score: If you find any more thermometers that have this score and are not symmetric to any of the three in this post I would be happy to see them. Symmetry here means any combination of: Translation Rotation Mirroring Reversing the ...


2



0



Top 50 recent answers are included