Logic Masters Deutschland e.V.

The Oscilloscope (featured in CtC)

(Eingestellt am 5. Juni 2022, 15:54 Uhr von FinnishGuy)

The Oscilloscope

This puzzle was featured in Cracking the Cryptic on June 4, 2022.


1. Normal sudoku rules apply.

2. Oscillator line. The red line is an oscillator line, along which digits alternate being high (more than 5) and low (less than 5).

3. Little killer. Clues outside the grid give the sum of the digits along the indicated diagonal (and may include repeated digits if permitted by other rules).

4. Main diagonal. Digits may not repeat along the main diagonal marked in blue.

5. Palindrome. Grey lines are palindromes, which read the same forwards and backwards.

6. Arrow. Digits along an arrow sum to the digit in that arrow's circle.

7. Even. The cell with an opaque grey square contains an even digit.

Solve Online (CtC app) :

Watch Simon's solve of this puzzle on CtC.

I hope you enjoy the puzzle. Feel free to leave comments.

Try also my other Sudoku puzzles

Lösungscode: Row 3 + Column 3, 18 digits, no commas or spaces

Gelöst von Klausku, Novisnage, jalebc, Steve360, Leonard Hal, SKORP17, wilsig, Zenryo, pianobarry87, Crusader175, cdwg2000, Ood, geronimo92, wpolly, Imperial Marcher, OGRussHood, dogfarts, BlueShifted, michaal94, Uhu
Komplette Liste


am 5. Juni 2022, 20:08 Uhr von Leonard Hal
What a beautiful trick!I've seen this trick several times,but I always foolishly forget to use it.Thanks!

am 5. Juni 2022, 16:54 Uhr von Klausku
Amazing break-in. Had to take a hint, what to use. But then it flowed nicely. Thanks.

Bewertung:88 %
Gelöst:20 mal
Beobachtet:0 mal

Lösung abgeben