Lumen Sudoku Killer & X

Five sudoku games in one free app, fully playable offline: Classic, Killer, Sudoku X (both
diagonals), Jigsaw (irregular regions) and Odd/Even. 1250 levels in total, 250 per variant, plus a
fresh daily grid every morning.

FIVE VARIANTS, ONE GAME
• Classic: rows, columns and 3×3 blocks.
• Killer: sum cages with few given digits, for players who love the math.
• Sudoku X: both main diagonals must also contain 1-9.
• Jigsaw: the 3×3 blocks give way to nine irregularly shaped regions.
• Odd/Even: marked cells only accept odd or even digits.

Each variant has its own 250-level ladder, its own accent colour and a one-page "How to play"
primer.

1250 LEVELS, A CAREFULLY TUNED CURVE
Every grid is generated and checked to have a single unique solution, with difficulty rising
smoothly from level 1 to level 250. A global level tracks every win across all five games and moves
you up the ranks, from Novice to Grand Master.

DAILY CHALLENGE
One grid a day, the same for everyone, playable even offline. A monthly calendar keeps track of
your wins and feeds your daily streak.

100% OFFLINE
No connection needed to play. No account, no sign-up form, no server. Your progress never leaves
your device. The app is available in 10 languages.

FREE, WITH ADS ONLY IF YOU CHOOSE
Two free games a day, on top of the daily challenge, which is always included. Need one more game
or a hint? A short rewarded ad, only if you choose to watch one. No banners, no ads interrupting
your game.

LUMEN UNLIMITED (optional)
Unlimited games, zero ads, 3 hints per game. One-time purchase, 3.99, yours forever, no
subscription.

ACHIEVEMENTS AND LEADERBOARDS
Sign in silently to Google Play Games to unlock 15 achievements and climb 6
leaderboards, one global and one per variant. No sign-up required; the app
stays fully playable offline if you would rather skip it.

A logic and number puzzle, no wifi needed, from your very first sudoku to expert level.