Logic Masters Deutschland e.V.

Surge

(Published on 12. August 2026, 17:25 by JamesCullum)

High Voltage Sudoku
Surge
Ratio Arrows × Value Sandwiches × Region Sum Lines
“Charge the grid. Follow the current. Survive the surge.”
Set by James Cullum
Rules

1. NORMAL SUDOKU
Normal Sudoku rules apply.

2. RATIO ARROWS Each circled bulb contains a normal Sudoku digit d. Its effective VALUE equals the sum of the digits on its shaft and is either d/2 or 2d.

circle digit = d
VALUE = sum of shaft digits
VALUE = d/2  or  2d

3. VALUE SANDWICH Digits 1 and 9 are the bread and are excluded from the sum. Every cell strictly between them contributes its VALUE. Ordinary cells use their digit; ratio-circle cells use their effective arrow value.

4. REGION SUM LINES Box borders split each line into segments. Every segment on the same line has the same digit sum.

⚡ Solve in SudokuPad →
⚡   Half the charge   /   Double the charge   ⚡

Solution code: row 1 and 3 no spaces

Last changed on -

Solved by OlafLemme, ShuffBeeeell, JefferyJ, haoju, kangaroo, bhambells
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Comments

Last changed on 14. August 2026, 10:01

on 12. August 2026, 22:16 by ShuffBeeeell
The sandwich clues fool you into thinking this is more 3*, but working through the possibilities definitely took 4+* effort. Thanks, James, for another great Ratio Arrow puzzle!

Edit: (James) You're super welcome!

Difficulty:5
Rating:N/A
Solved:6 times
Observed:0 times
ID:000UBQ

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