Place a nonzero digit into some of the white cells of the grid. Shaded cells must remain blank. No digit can repeat in a row or column. In each row, the sum of the digits must be equal to some fixed value R (which you find during the solution). Similarly, in each column, the sum of the digits must be equal to some fixed value C. Circles in the grid give all the digits in the cells that touch the circle. (Including repeats; if two cells touching a circle have the same digit, the circle must co...| Recent Questions - Puzzling Stack Exchange
A unique puzzle for analytical minds. Do you dare to solve it? Rules: Fill the grid with all two-digit numbers (from 00 to 99), with no repetitions. In each row and each column, no two numbers may share the same tens digit. In each row and each column, no two numbers may share the same units digit. The colors are decoration. It sounds simple... until you try it. Good luck!| Recent Questions - Puzzling Stack Exchange
This site has computer generated slitherlink puzzles that can be solved using the methods discussed in this Q&A SlitherLink on moderate or large boards: going beyond 0s and 3s For the largest regular puzzles (25x30, hard), and applying the techniques in the question linked above, I can solve such puzzles in about an hour, if I am lucky. My "record" is 49 minutes. I have all the assistants turned on (such as automatically marking completed squares). To complete such a puzzle in an hour, one ne...| Recent Questions - Puzzling Stack Exchange
Fill the squares with the right tetrominoes, so each tetromino contains numbers 1 to 4. Example:| Recent Questions - Puzzling Stack Exchange
Put the numbers from 1 to 6 in the puzzle in a way such that: In each row or column there shouldn't be duplicate numbers. The squares that are joined together have the same number.| Puzzling Stack Exchange
Puzzlein’ Nonogram — Solve the puzzles. Inspired from this great puzzle by @DyingIsFun. Click the image for larger view. (59x59) I’ll not require the full logical step. (If I do, I’ll be busy| Puzzling Stack Exchange