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EpicTango

A logic puzzle that never asks you to guess.

Sun and moon on a 6×6 board. Every game has a single solution, and you reach it by deduction — never by trial and error.

Free, with ads and optional purchases. For Android.

Three rules, and nothing more

Tap a cell to cycle between sun, moon and empty. Whenever you want to know if you are on the right track, Check shows where the conflicts are.

Balance

Valid: three suns and three moons

Each row and each column ends with the same count of both symbols: three of each.

No three in a row

Conflict: three moons in a row

At most two identical symbols side by side, both horizontally and vertically.

The edge signs

=
×
Both signs respected

The = sign links two cells that must be equal. The × sign links two that must be different.

Four ways to play

The same engine generates every board, and each one passes the same unique-solution check before it reaches you.

One a day

Daily

One board a day, the same for everyone. The difficulty rises through the week: easy on Monday and Tuesday, medium mid-week, hard on the weekend. When you solve it, the game keeps your time and invites you back tomorrow.

Reveal images

Journey

Each chapter hides a picture behind 36 puzzles. Solve them in any order to uncover the art piece by piece; finish a chapter and the image is yours to download. New chapters arrive from time to time.

Daily allowance

Practice

Pick the difficulty and play against the clock. The free plan gives a daily allowance in each difficulty, and the subscription unlocks it without limit. It tracks total time, best time, day streak and how your games split by difficulty.

Four rules

Tutorial

A short tutorial teaches one rule at a time: cycling the symbol, never three in a row, the = sign and the × sign. Straight to the point, so you start playing in seconds.

Made to play anywhere

  • Works offline

    Boards are generated on the device itself and the daily challenge comes from the date, not a server. You can play all day with no connection.

  • Play without signing up

    No account needed to play: install, open, play. Linking your Google account is optional, and it carries progress and purchases to another phone.

  • Light and dark themes

    The game follows the system preference, with a palette designed for each of the two — not the same design with the colors inverted.

  • Readable for colorblind players

    The sun has rays and the moon has a bite. The two symbols differ by shape, so the game stays playable even in grayscale.

Available on Google Play

Solved by deduction, not by luck.

EpicTango is free and supported by ads. There are coins and an ad-free subscription, but none of that is needed to play: we require no sign-up, ask for no camera, location or contacts permission, and you play without giving us any personal data.

Get it on Google Play