More information about my Double Trouble series as well as links to the other puzzles of the series can be found below the puzzle.
Rules:
Sudoku: Fill every row, column and 3x3 box with the digits 1-9.
Killer:
In cages digits must not be repeated and have to add up to the total given in the top left corner of a cage.
Double Trouble: Digits in cells marked with a blue diamond contribute the double value to the cage total.
Have fun solving!
The Double Trouble series:
It's a simple idea. Treat a few cells as if they are double their value. But it has tons of interesting logic and can turn known rule variations completely upside down. With this series I want to show this diversity.
Variant introduction: Easy to moderately difficult puzzles that show the combination of doubling cells with different variants.
Double Trouble - Arrows
Double Trouble - Killer
Double Trouble - Skyscraper
Double Trouble - XV
Advanced Double Trouble: The puzzles in this section present more complex logic around doubling cells.
Wrecking Ball
Puzzles with hidden doubling cells: The doubling cells are not given here, but must be determined by the solver.
Doubles Hidden Inside Squares
I look forward to any feedback and suggestions about the series.
Solution code: Row 5 followed by column 5 (18 digits)
on 12. October 2024, 21:45 by Mad-Tyas
"Modifier Cells" tag added
on 7. July 2024, 17:58 by wuc
Great fun snack. I tackle the whole series now. Thx.
on 10. March 2022, 04:34 by Sarl3k
Great puzzle! thank you :)
on 10. November 2021, 01:46 by Mad-Tyas
Added CTC app link
on 7. October 2021, 21:28 by Cyraneo
I loved this! The break-in was very satisfying and the puzzle was an absolute pleasure for me as a beginner. Perfect balance between being approachable whilst also providing a bit of a challenge. Thank you!
on 6. October 2021, 23:35 by nunc
Needed some time for the break-in, but after that, it flowed nicely and easily. Thank you!
on 6. October 2021, 21:40 by Chelo
I enjoyed it very much, the double value is a great thought. Thank you.
on 6. October 2021, 05:46 by ScatterBrain
Great idea. Never thought of doubles before.