The puzzle free online library · 19 games

A little knowledge.
A better next move.

The rules behind the fun. Explore how each game works, understand its terms, and find the difficulty that fits.

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19 wiki articles

Logic

Arrow Escape

Clear every arrow by sending it out in the direction its head points.

Rules · Difficulty · FAQs
Logic

Sudoku

Fill each row, column and 3×3 box with 1–9, without repeating a number.

Rules · Difficulty · FAQs
Numbers

2048

Slide matching tiles together and reach 2048.

Rules · Difficulty · FAQs
Logic

Minesweeper

Reveal every safe square without hitting a mine.

Rules · Difficulty · FAQs
Memory

Memory Match

Match every pair with as few turns as possible.

Rules · Difficulty · FAQs
Spatial

Sliding Puzzle

Arrange the numbered tiles in order, leaving the bottom-right space empty.

Rules · Difficulty · FAQs
Logic

Nonogram

Fill squares so every row and column matches its number clues.

Rules · Difficulty · FAQs
Spatial

One Line

Trace every edge of the drawing exactly once.

Rules · Difficulty · FAQs
Spatial

Tangram

Fit all seven shapes into the outlined square.

Rules · Difficulty · FAQs
Memory

Number Hunt

Tap every number in order, as quickly as you can.

Rules · Difficulty · FAQs
Numbers

Make 24

Use all four cards exactly once to make 24.

Rules · Difficulty · FAQs
Numbers

Number Chain

Join neighboring equal numbers and reach your difficulty’s target.

Rules · Difficulty · FAQs
Spatial

Maze Escape

Guide the marker through the maze to the finish flag.

Rules · Difficulty · FAQs
Logic

Lights Out

Turn every light off.

Rules · Difficulty · FAQs
Logic

Color Flood

Flood the whole board with one color within the move limit.

Rules · Difficulty · FAQs
Spatial

Peg Solitaire

Finish with exactly one peg remaining.

Rules · Difficulty · FAQs
Logic

Codebreaker

Use the feedback to guess the secret code within your attempt limit.

Rules · Difficulty · FAQs
Arcade

Snake

Eat food, grow your snake and avoid walls and your body.

Rules · Difficulty · FAQs
Logic

Four in a Row

Connect four discs horizontally, vertically or diagonally.

Rules · Difficulty · FAQs

Written for the games you can play here. Rules and controls may differ from other editions.