Podcast #128: We chat with Kent C Dodds about why he loves React and discuss what life was like in the dark days before Git. Listen now.
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Puzzles such as Sudoku or Kakuro, where the final state of a pre-existing grid must be deduced logically through clues placed within and/or around the grid. For puzzles where you are given a list of clues which can be used to compose a grid to solve them logically, use the [logic-grid] tag instead.

10
votes
1answer
There is a $5\times5$ grid where you are supposed to put all two digit numbers which consist only of the digits $1$ to $5$, namely $11,12,13,14,15$,$21,22$,.... The task is to put all these two digit …
asked Oct 28 '17 by Oray
2
votes
While creating a grid-deduction puzzle, I believe you need two programmings: A brute-force programming that solves the problem quickly and create randomly different puzzles which have unique solutio …
answered Mar 5 '18 by Oray
6
votes
4answers
You are given a $9\times9$ grid board. You have 40 "$1$"s and 41 "$0$"s. You can put these numbers wherever you want on the board. After that, you will take the sum of the numbers in each row and co …
asked Oct 20 '17 by Oray
4
votes
2answers
Find question mark in this grid with numbers. csv version: 9,6,7,3 2,4,7,6 4,1,5,8 3,0,3,? Hint: You use all numbers to find ? and it is much more simple calculation than you think!
asked Nov 12 '17 by Oray
11
votes
1answer
You are supposed to create a new $5$x$5$ Futoshiki puzzle with the least amount of clues possible, but this puzzle needs a unique answer. In other words, What is the minimum number of clues for $5 …
asked Oct 12 '17 by Oray
3
votes
I have found a better answer than this answer by just playing with it: with not sure this is optimal though, but most likely. gonna write a program if noone does that until I wrote :D
answered Jun 22 by Oray