New answers tagged

6

COMPLETED GRID REASONING First steps: Upper right corner: At this point: Rand answered so I stopped writing up my progress. I'll try to reconstruct: Moving forward: Unraveling that contradiction, we have: So we have: Getting close!


3

Detailed deduction is as follows, with the final solution and illustrative GIF at the end. Corner deductions Top left region: Bottom left region: Top right region: Bottom right region: So far we have: Note that the big doughnut room Side deductions Bottom row: Left column: Visit length for the big room If the big doughnut room has visit length ...


3

Converting the partial numbers to notes: Filling in numbers based on notes: Iterating through rows: Thanks @BeastlyGerbil for this fun series!


9

Standard Sudoku rules Looking for the I-tetromino Looking for the T-tetromino Looking for the L-tetromino Looking for the S-tetromino


11

The final answer is: Step 1: Step 2: Step 3: Step 4:


7

Iterating over rows: Then iterating over columns:


-1

Here's a solution that complies with Wikipedia's rules:


12

Should've known what I'd gotten myself into when starting, whew. Great puzzle! Really hard, but I hope I got everything right. 0th Step: Try to squeeze out everything we can by normal Sudoku first: 1st Step: 2nd Step: 3rd step: Last step:


8

COMPLETED GRID REASONING To begin: A deduction: Moving into the unshaded squares: The rest of the grid is just Sudoku fill-ins.


31

Well so you could do Full solution (The "Try it online" link agrees that this is legal)


3

Final solution:


8

I believe the following is the answer: Explanation (Update: Explanation is complete now!.) Slitherlink Solving Balance Loop Masyu and Tapa-Like Loop Geradeweg, Simple Loop and Resolving Masyu Simple Loop, Geradeweg and Maxi Loop Room Haisu and Solving the Simple Loop Geradeweg and Room Haisu Solving Detour with Yajilin Solving Country Road and Room ...


25

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)


9

COMPLETED GRID REASONING Looking up top: At the bottom: Finishing up:


17

COMPLETED GRID REASONING First steps: Moving on: Some Sudoku forcing: Finishing up:


9

I used the exact same logic for each picture here: With that in mind, some pictures, in order. I mostly completed two regions per picture. Step 1: Step 2: Step 3: Step 4: Step 5: Step 6 (and the solution): Not hard but quite enjoyable.


9

COMPLETED GRID REASONING First we start with basic connectivity and counting deductions, to get to: Reaching around: Moving to the left side: Lower middle: Finishing up:


15

Solution (click to see large version): The first thing is to produce the following list: I: 1234 6789 II: 23 78 III: 3 8 IV: 4 V: 45678 VI: 678 VII: 78 X: 9 From that, standard Sudoku techniques apply. I'll just list some middle steps below.


8

COMPLETED GRID REASONING Using the dots, we get some quick deductions: Not stuck in the middle: Finishing up:


7

First, let's take a look at the rows and columns with 0s Now, Let's use the top-edge clues once again! After that, Now to use the left-edge clues To wrap it all up,


6

Starting by going through each box from top to bottom, then left to right: Repeating the process: Thanks for another fun solve!


11

This is a fantastic puzzle! Incredibly difficult, but with a really nice solution path. I have no idea how you managed to come up with this! Solution: How to solve: (This took me about 7 hours so my memory of early logic is fairly rusty, but I have explained as best I can) 1: 2: 3: 4: 5: 6: 7: And finally, cleaning up the right hand grid and entering ...


10

Unruly offers the same game principle with custom parameters Width, Height Size of grid in squares. (Note that the rules of the game require both the width and height to be even numbers.) Difficulty Controls the difficulty of the generated puzzle. Unique rows and columns If enabled, no two rows are permitted to have exactly the same pattern, and ...


9

0h h1 is just one example of a Takuzu puzzle, so searching for Takuzus will broaden your search. For example, here is a 16x16 Binary Puzzle, and here is a 20x20 Binairo. The rules are identical; the only difference is what is used to fill in the cells (red vs. blue, black vs white, 0 vs 1).


6

Completed Grid Reasoning Continuing in the right column of squares: Some additional deductions: Finishing up:


9

Solution: New solver too! This is the first 'plain' nurikabe I've solved, and here's how to solve: STEP 1: STEP 2: STEP 3: STEP 4: STEP 5: FINAL STEP:


10

For the Nurikabe, basic deductions get here: To avoid a shaded 2×2 Again, And now, to figure out the passcode:


3

The Sudoku (Will try and put into excel and clean up the images when I have the time) Starting off, we can make some quick and easy deductions: Moving on, there are a lot of hidden singles throughout the grid Even more hidden singles later... And the solution: The Nurikabe Keeping the numbers and filling in the obvious cells gets us this starting point:...


9

I decided to post my answer on PSE because I think it's already been unanswered for a long time here :) Please keep in mind that I'm not really good at explaining (same reason as why I'm not trying to be active here), but I'll try my best. Also, please tell me if we can resize the spoiler box. Final answer: Thanks for the puzzle! :)


7

The solution: Here's the process for solving: (Image below) Next: (Image below) Next: (Image below)


3

Repeatedly iterating over the boxes (regions?) gave me: Then, doing the same over the columns gave me: All in all, this was a great puzzle! The gaps in the board made it a little tricky to keep track of how some numbers blocked certain spaces, but it was still very enjoyable. Looking forward to more of the series! :) This was a pretty straightforward solve,...


7

Step 1 Step 2 Step 3 Step 4


2

The first thing to note is that some standard sudoku principles apply. For example for each row and column as well as each block can only contain a particular digit 3 times in each place. I will use notation [row,column]. To start off we can notice that in the fifth row all 3 of the right zeros ( -0) are filled in so entry [5,4] (2-) must be equal to 22 ...


6

I thought it was a shame such a nice puzzle didn't have an explanation of its solve path. So here's mine! Click through to get the (large) full-size images. "Connectivity deduction" means "I put a line here because if there isn't a line, a single connected loop is now impossible". Shaded pieces mean I've placed them, and shaded parts of ...


10

Step 1: Step 2: Step 3: Step 4:


0

This is the answer to the first letter (you can swap the black and white). I’m not sure on the next part, though


13

Solution Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7


4

There are a lot of solutions, the puzzle is not unique. I am only showing 2 of them. Solution 1:- Solution 2:-


6

Completed Grid Reasoning Let's start with some Sashigane logic: Back to the 5-bend: And the ? bend again: A fifth statue: A contradiction forces the L and the I: The right side: Finishing up:


8

Completed Grid Reasoning After the trivial initial shadings, we are left with: Now let's place the O: Finishing up:


5

Starting off by filling the 'easy' deductions with the 1s and 2s: Next, we have to consider reachability: Now, an interesting deduction appears: Next, And finally:


0

I believe not. We did just learn about it existing a few days ago. Plus, googling the word Kyudoku gives this link and this video, so I believe that Kyudoku is the only existing name.


4

I think there are two slightly different possible solutions (the path can join at either end in the top right corner) Deductions Step 1 Step 2 Step 3 From here we can connect to the small part in the top right corner, either horizontally or vertically and both are valid solutions.


1

Not the answer to the grid but the bonus question: The answer is: Also:


1

Here is a solution: Proof: for a moment let us assume the 3 and 5 is swapped: Then Then a hypothetical leads us to a contradiction: So: Then: How I got the numbers to interchange: Then: Lastly:


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