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)
17
COMPLETED GRID
REASONING
First steps:
Moving on:
Some Sudoku forcing:
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.
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:
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 ...
11
The final answer is:
Step 1:
Step 2:
Step 3:
Step 4:
10
Step 1:
Step 2:
Step 3:
Step 4:
10
Standard Sudoku rules
Looking for the I-tetromino
Looking for the T-tetromino
Looking for the L-tetromino
Looking for the S-tetromino
9
COMPLETED GRID
REASONING
Looking up top:
At the bottom:
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.
8
COMPLETED GRID
REASONING
Using the dots, we get some quick deductions:
Not stuck in the middle:
Finishing up:
8
COMPLETED GRID
REASONING
Looking at the X:
Some more logic in the upper left:
The pentomino on R4C4:
A quick Sudoku hit:
Place the F:
Finishing the pentominous:
Back to Sudoku:
Continuing in the lower right:
Finishing up:
8
COMPLETED GRID
REASONING
To begin:
A deduction:
Moving into the unshaded squares:
The rest of the grid is just Sudoku fill-ins.
7
Iterating over rows:
Then iterating over columns:
7
Step 1
Step 2
Step 3
Step 4
7
The solution:
Here's the process for solving:
(Image below)
Next:
(Image below)
Next:
(Image below)
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
Completed Grid
Reasoning
Continuing in the right column of squares:
Some additional deductions:
Finishing up:
6
Starting by going through each box from top to bottom, then left to right:
Repeating the process:
Thanks for another fun solve!
4
Converting the partial numbers to notes:
Filling in numbers based on notes:
Iterating through rows:
Thanks @BeastlyGerbil for this fun series!
4
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,...
3
You actually spoiled a key trick that
so I could easily come up with the answer of
which was generated in the following way:
As a bonus, there is an answer if you restrict the pair sums to only 11:
3
Final solution:
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:...
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 ...
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