Logic Masters Deutschland e.V.

Solve in SudokuPad

Rules

• Standard sudoku rules apply: Fill the grid with digits 1-9 so that no digit repeats in any row, column or 3×3 box.

• 5:15 Clocks: a clock connects two digits that sum to either 5 or 15

All variant clues follow their standard meanings; full descriptions are provided below.

• Anti‑Knight: Cells a knight’s move apart (as in chess) may not contain the same digit. The Anti-knight icon is a reminder for this rule and has no special meaning for the cell it is located in.
• X sums: an X connects two digits that sum to 10.
• Modular Lines: Along a teal line, any three adjacent digits must include one digit from each of the modulo‑3 sets {1,4,7}, {2,5,8}, and {3,6,9}.
• Parity Lines: Along a red line, digits must alternate between odd and even.
• Killer Cages: digits in cages must sum to the number shown in the top corner.

Walkthrough video

Other Puzzles

If you enjoyed this, feel free to check out some of my other puzzles:

• Series: Mostly Harmless
• Snack Pack: a little time off B-)
• Series: Stupid Cupid
• Other recent releases:
  • Iguana vs Snakes
  • Division in the Pocket Dimension
  • Rorschach: I choose you!
  • Snow Dragon vs Fire Dragon
• Series: In the Knight Time
  1. One Hot Black Knight
  2. Five Consecutive Knight Straight
  3. Cross Whispers in the Knight
  4. Knights of the Round Times Table