This weekend, it’s the Serbian leg of the Sudoku Grand Prix. To go with that, here’s an easy and non-spectacular classic Sudoku. So far, they all turn out easy…
Category Archives: Puzzles
Puzzle 7: Magic Labyrinth
Here’s a small Magic Labyrinth. Can you tell where the 4 doesn’t go?
Puzzle 6: LITS+
Here’s an older and easier LITS+ puzzle.

Puzzle 5: Masyu
Puzzle 4: Geradeweg
Here’s a Geradeweg. It might have gone in last weekend’s Puzzle GP round, but the focus there was on more familiar types. There’s a couple more of these on the Rätselportal.
Puzzle 3: LITS+
Here’s a LITS+ puzzle.
Puzzle 2: Checkered Fillomino
This variation was introduced by Nikolai Beluhov at Puzzled by Titles, see the authoritative rules and two very tricky puzzles: Fillomino 6: Checkered, Fillomino 8: Checkered. Here’s something that’s hopefully both correct and a little more approachable.
Rules (brief): Solve as a standard Fillomino, and shade some resulting polyominoes, such that no two shaded or unshaded polyominoes share an edge.
Puzzle 1: Let’s start with something small
I came up with the following little Masyu with twisted symmetry while searching for a good example for the rules page. I think you can’t get much smaller without picking up some proper symmetry.




