Infinity Kakuro

Infinity Kakuro is a number-cross puzzle — Kakuro, also known as cross sums — that you can enjoy endlessly. A calm brain teaser with no finish line.

■ The puzzles never run out Every board is generated fresh, so there is always a new one waiting. Solve as many as you like; the next puzzle is already on its way. Nothing is pre-made.

■ No ads while you play The board stays ad-free while you solve, so you can focus on the puzzle. (An ad may appear when you move on after finishing a puzzle, or on the home and menu screens.)

■ Big text, at your own pace Large, high-contrast type and no time limit — take all the time you want. Choose from three text sizes. A gentle practice mode teaches the rules up front, and hints are there whenever you get stuck.

How to play Fill the white cells with the digits 1–9 so that each run adds up to its clue. A digit is never repeated within a single run.

Great for anyone who loves numbers or puzzles, and for a daily mental workout — at any age.