18 games like SumGrids

A puzzle game turning logic into visual mechanics: find the right combinations to light up shapes. Contours represent connectives, and light means truth. Solving a puzzle is secretly proving a theorem, unlocking the proven logical formula as a badge. Enjoy random or daily challenges.

Meowdoku is a relaxing logic puzzle combining Sudoku rules and Queens mechanics. Place cats into colored regions so no two cats share a row, column, or touch diagonally. 100% pure deduction with zero math or guessing. Free, unblocked, and ad-free browser play!

Daily image generation puzzle: guess the 5 words used to produce an image in fewer guesses than the AI (currently GPT-5). Share with your friends, make the leaderboard, and play up to 400+ prior puzzles!

Divide the grid into rectangles, each containing one number that matches the rectangle's area.

One roll a day. Badges go to numbers with interesting properties, and everyone compares results.

Use the clues to figure out which characters are innocent and which are criminals.

Seedle.io is a crop farming puzzle game. Place your crops in the most optimal way to gain the highest possible score!

Draw electoral districts to win more seats than your opponent in this daily gerrymandering puzzle.

The 5x5 grid follows rules that change from one day to the next.

A classic logic puzzle game where you must light up the grid.

Four guesses to name the angle on screen, with the feedback warming up as you close in.

Place suspects and evidence into rooms until only one arrangement of the case still fits.

Deduce the daily five-dot unlock pattern in six tries using Wordle-style color feedback.

3D Sudoku on a cube using the numbers 1 to 16.

LogiCue is a daily deduction game about discovering the secret rule inside a mysterious number machine. Players can run up to eight experiments, study the machine’s outputs, and then prove their theory by predicting three unseen results.

CodeDoku is a free daily browser puzzle. Deduce which item belongs in each cell of a 3×3 grid using intersecting row and column hints. One shared puzzle per day for all players, new theme every day, ~3 minutes, no account needed. Also play extra practice boards anytime.

Daily ice-sliding logic puzzle where you glide a penguin across the board to collect every fish in as few slides as possible.

One mystery angle, six tries, with a temperature hint and higher or lower.