Puzzler Killer Sudoku

Current issue: No. 155

For those who want a deadly challenge! Choose the type of challenge you want with this collection of quality Killer Sudoku puzzles divided into five levels of difficulty, from mild to deadly.

Also included are other logical brainteasers such as Galaxies, Hidoku, Kakuro, Killer Uncaged and MinuPlu.

Frequency: every 6 weeks