That's three in all four corners
(Published on 15. July 2024, 04:08 by sanabas)
You can attempt this puzzle at this sudokupad link
Good Luck!
Questions, comments, feedback are always welcome.
Normal Schrodinger Sudoku rules apply: Fill the grid with the digits 0-9 such that no digit repeats in a row, column, or box.
S-cells: In each row, column, and box there is exactly one S-cell, S-cells contain two digits instead of one, and their value for the purpose of other clues is the sum of those digits.
Doublers: One cell in each row, column and box is a doubler. For the purpose of other clues, the cell's value is double the digit (or digits) in the box. Each digit from 0-9 appears exactly once in a doubler cell.
Region sum lines: On blue lines, the sum of values on the line is equal in each region the line appears in. Different lines may have different sums. Killer cages: Digits do not repeat in cages (though values may repeat) and values sum to the total in the top left corner of each cage.
Renbans: Each purple line contains a set of consecutive values with no repeats.
German Whispers: On green lines, adjacent digits have values that differ by at least 5.
Kropki: Values in cells separated by a black dot have a 2:1 ratio. Not all dots are necessarily given.
My three most recent puzzles:
Don't open the box
Really, don't open the box
Why did you open that?
If you enjoy this one, please try them too.
Solution code: The row with the largest doubler
Comments
on 23. July 2024, 18:50 by Snookerfan
Beautiful puzzle! Very hard in my opinion because it is so easy to miss options and make mistakes. Thank you
on 19. July 2024, 09:39 by wullemuus
Again a very interesting and surprising puzzle! The interactions between doublers, S-cells and region lines are well executed and lead to a smooth solving path. The biggest difficulty is to stay attentive. Well done!
on 15. July 2024, 15:29 by rameshsrivats
Brilliant puzzle like every one of them in this series.
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Thank you for the kind words
on 15. July 2024, 10:33 by MonsieurTRISTE
I marked two colors for S-cells / non S-cells, and the pen marks for doublers. It would be cleaner than using 4 colors, I guess.
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Yeah, I tend to use red for s-cells, yellow for doublers, and if I need it, gray for neither. But I'll delete the gray as soon as I can. thanks for solving this one.
on 15. July 2024, 10:28 by psams
Very interesting logic, but hard to narrow down the options. I solved several parts of the puzzle, but resorted to the SudokuPad check button for others. I will have to try this one again later from the beginning to try to solve it with pure deductions. (not entering the solution code at this time)
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Glad you enjoyed it. If you ever need a hint, just message me on the ctc discord.
