# Tag Info

Accepted

• 1,201
Accepted

### Must any "hourglass" touching the hexagon, in a Sudoku Hoshi, contain the same number twice?

I'd like to add a simple, direct proof:
• 21.4k

Partial solution
• 9,620
Accepted

### Empty sudoku puzzle

The solution is: or, in text form: Explanation (not the fastest way, I realized some improvements while writing it):
• 28.1k
Accepted

### Do sudoku answers always have a single minimal clue set?

Here are two proper, irreducible sudoku with the same solution as each other and disjoint sets of clues (24 & 25 clues, respectively). ...
• 21.3k
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### Sudoku like you've never seen it before

This seems to fit: The initial step was to replace all 1's (red) with a 2 (black) and all 9's with an 8: Then, whenever a red number was +/- 1 of a black number which was on the same row, column or ...
• 8,870
Accepted

### Why does generating a Sudoku work in lines, but not in a random pattern?

You will be forced to backtrack more quickly if you proceed line-by-line, because the sudoku constraints are enforced line by line (and column by column and in each sub-square). If you fill in cells ...
Accepted

### Happy Pi-Day! Try to solve this "PiDoku"

For the sake of completeness, there are actually 3 possible solutions. Using process of elimination and deduction can get you to this point: One solution is given by Sid already: But two more are: ...
• 8,093
Accepted

### MASTERING Sudoku

Final solution Step by step deduction Firstly, note that MASTERING is a full nine-letter word so it takes up a whole row, and EMIGRANT is an eight-letter word so the column is either EMIGRANTS or ...
• 117k

### Sudoku like you've never seen it before

I have been asked by a couple of people to show the creation process for this puzzle, so here we go: Also if people want to see more of these strange, Sudoku mash ups then I'll be more than happy to ...
• 62.8k
Accepted

### Japanese Fusion Alphabet Soup

The completed dish The reasons why The ultimate message Follow the directions My answer
• 150k

### Happy Pi-Day! Try to solve this "PiDoku"

Here's the solution: I will provide the explanations within the next 24 hours because now I have to go to bed.
• 15.2k

### Who am I??? Wait, isn't this a sudoku?

The next part of this puzzle can be found at: How I got this: So, what to do next:
• 10.5k
Accepted

### The Determinant Sudoku

Final solution Step-by-step explanation In each of the 2x2 boxes with determinant 0, we have four numbers $a,b,c,d$ between 1 and 9 such that $ad=bc,a\neq b\neq d\neq c\neq a$. This leaves ...
• 117k
Accepted

### Can a standard Sudoku puzzle contain a miniature Sudoku puzzle?

The answer is Let's try it out:
• 12.3k

### This new puzzle type needs a name

Wrap-up: The Making Of This new puzzle type needs a name This is not a solution to the puzzle, but provides notes from its poser. This type of answer has been approved by the community. Caution: This ...
• 150k
Accepted

### Didn't you ask me for a crossword?

This puzzle is certainly not Solving the crossword: The clues: Then solving as a 'Wordoku': (Not posted logical path as it is quite straightforward, but can if needed)
• 62.8k
Accepted

You're
• 28.1k
Accepted

### Who am I??? Wait, isn't this a sudoku?

EDIT : wrote the complete answer. Take a look at the grid submitted by OP. There's also those intriguing blue squares. We can move on. I'm struggling with the 'spoiler' blocks. Here comes my ...
Accepted

### Are you radical enough to solve this SURDOKU?

Surd-lution (sorry :P): To start: Now the step by step: 1: 2: 3: 4: 5: 6:
• 62.8k
Accepted

### Sudoku as Poetry: A Tag-Fusion Masterpiece

The poem is ...   The completed sudoku puzzle looks like this - hopefully no errors made in the transcription from the original text version Original text version solution - this is what I ...
• 41.7k
Accepted

### A 16 Clue Sudoku Puzzle (but the kings can't be in check)

If I didn't make any mistakes, this should do: Insights into the solving process:
• 21.8k
Accepted

### A Page of Puzzling

The solution is The crossword was first solved by @NeilW, and @Sconibulus solved the alphametic and the maze (go upvote them!). For the Sudoku: For the Anagram: For the Logic puzzle: Back to the ...
• 5,099
Accepted

### This is a crossudoku

The filled grid looks like this: Several of the clues have only a single possibility considering that we know the number of digits and that all digits have to be unique. The second clue especially ...
• 4,992
Accepted

### Can you embed a 4x4 Sudoku inside a 16x16 Sudoku?

• 9,686
Accepted

The 'hardest' possible Irregular Sudoku has and it looks like this:
• 150k
Accepted

### Complaint at the PSE lounge

The Needs to be upgraded! Quick explanation of how to solve (lots of pictures for step by step solutions): Solution to the nonogram: Steps: 1: 2: 3: The riddle: Now Solving the new sudoku: ...
• 62.8k
Accepted

### How can I solve this sudoku?

If F1 is a 2, then On the other hand, if F1 is not a 2, then Therefore,
• 78.6k
Accepted

### Sudoku NYT medium difficulty

Stiv's answer is right (+1), but let me share another technique which might help you discover this in the future.
• 28.1k