Cojun - Consecutive Puzzle

Cojun is a clean and satisfying number puzzle built around regions, logic, and deduction.

Fill each region with consecutive numbers from 1 up to the size of that region. A region with 3 cells must contain 1, 2, and 3. A region with 5 cells must contain 1, 2, 3, 4, and 5.

Every puzzle can be solved through logic step by step.

Rules

• Each region must contain the numbers from 1 to its size

• Numbers may not repeat inside a region

• Equal numbers may not touch orthogonally anywhere on the board

• In vertical runs inside the same region, numbers must decrease downward

• Clue cells are fixed and cannot be changed

Features

• Daily challenges

• Unlimited puzzles

• Multiple board sizes

• Multiple difficulty levels

• Undo support

• Optional error checking

• Region completion highlighting

• Clean and focused interface

Cojun is great for quick sessions and long puzzle runs alike. The rules are simple to learn, and the puzzles stay engaging as the boards grow larger and more challenging.