Question 1

What is Logic Puzzles?

Accepted Answer

A collection of six classic Japanese pencil-puzzle formats · Akari, Shikaku, Nurikabe, Slitherlink, Bridges (Hashiwokakero), and Loop. Each trains constraint-satisfaction reasoning.

Question 2

What are the six puzzle types?

Accepted Answer

Akari: place bulbs to illuminate every white cell. Shikaku: divide into rectangles matching numbered areas. Nurikabe: shade water cells to isolate white islands. Slitherlink: draw one closed loop. Bridges: connect islands with the right bridge count. Loop: route a loop obeying turning rules.

Question 3

Do I need to know Japanese to play?

Accepted Answer

No. The puzzles are fully localised. The rules are also geometric and self-contained · once you learn the rules once, the puzzle language does not matter.

Question 4

How does difficulty scale?

Accepted Answer

Easy difficulty uses small grids (5×5 to 7×7) with many clues given. Higher difficulty increases grid size and reduces given clues, requiring longer deduction chains and more backtracking resistance.

Question 5

How does my progress save?

Accepted Answer

Your best streak per puzzle type is stored locally in your browser. Sign in to sync it across devices.