Variant Sudoku

Flinty

Flinty has 21 puzzles in the Variant Sudoku catalog, most often with Killer, Fog of War and Kropki. One was solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.

Puzzles here2120 are 9×9
First puzzle2023Steamy Secrets
Latest puzzleSept 2026Dutch Flat Mates: Internal X-Sums (CC)
Logic Masters solves11,630Average rating 93% · 1 on CTC

Favourite rules

Puzzles by Flinty

Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.

Dutch Flat Mates (Arrows) gridLM

Dutch Flat Mates (Arrows)

Very easy419 solves
ArrowKillerLittle KillerThermo
Dutch Flat Mates (Kropki) gridLM

Dutch Flat Mates (Kropki)

Very easy604 solves
KropkiLittle KillerThermoGerman Whispers
Dutch Flat Mates (German Whispers) gridLM

Dutch Flat Mates (German Whispers)

Easy409 solves
German WhispersThermoRegion Sum Lines
That's 3 in the spotlight... gridLM

That's 3 in the spotlight...

Very easy378 solves
ThermoLittle KillerKropkiSkyscraper
Sycamore Gap Tree gridLM

Sycamore Gap Tree

Very easy433 solves
German WhispersThermoArrowRegion Sum Lines

In collections

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