Pick a challenge

Logic Puzzles

Choose a puzzle and give your brain a workout.

Sudoku

Fill every row, column, and box with the numbers 1 through 9.

Play Sudoku

Futoshiki

Fill rows and columns with numbers while following greater-than and less-than clues.

Play Futoshiki

Sliding Puzzle

Slide numbered tiles into the empty space and restore them to numerical order.

Play Sliding Puzzle

Minesweeper

Use numbered clues to locate hidden mines. Every puzzle can be solved with logic, without guessing.

Play Minesweeper

Mastermind

Crack the hidden four-color code. Each guess reveals how many colors are correctly placed and how many belong in different positions.

Play Mastermind

Mini Logic Grid

A small, friendly matching puzzle for young solvers and beginners.

Play Mini Logic
Three unnumbered stock cars race past cheering spectators and a waving checkered flag at a sunny small-town oval speedway.
HardFeatured Puzzle

Eight Laps to the Checkered Flag

Match five numbered race cars with their fastest laps, eight-lap averages, and final finishing places.

Solve This Puzzle
An open wooden collector’s tray of colorful crystals and rock specimens.
Hard Featured Word Search

The Rock Collector’s Tray

Open a collector’s display and find 20 minerals and rock names.

Solve This Puzzle
Five properly dressed medieval castle residents examine five tagged keys hanging on the wrong hooks inside a dark, damp key chamber with crumbling stonework, moss, and dripping water.
Medium Featured Sherlogic Mystery

The Missing Castle Keys

Match five castle residents with their rooms, metal-tagged keys, and numbered hooks, then expose a forbidden visit to the Treasury.

Solve This Mystery