Logic Masters Deutschland e.V.

Rules

1. Base
Normal Sudoku rules apply.

2. XV
Cells joined by an X must contain digits that sum to 10.

Cells joined by a V must contain digits that sum to 5.

Not all X's and V's are necessarily given.

More XV Sudoku puzzles
This puzzle appears as puzzle #123 in my book 128 Handcrafted XV Sudoku. If you enjoyed solving it, you'll find 127 more handcrafted XV puzzles in the full volume, ranging from beginner-friendly introductions to expert-level challenges.

Discover the series
128 Handcrafted Sudoku Variants is an ongoing series where each volume explores a new Sudoku variant. Every book gradually progresses from easy 4×4 puzzles to expert 9×9 challenges, making the series suitable for both newcomers and experienced solvers.