Domino Regions - Logic Puzzle

Domino Regions is a clean logic puzzle about shading dominoes and dividing the grid into regions.

Shade cells so every shaded block becomes a domino made of exactly two connected cells. Dominoes may not touch each other directly, and clue cells must always stay open.

The remaining open cells form regions. Each region must contain exactly one clue type, including all matching copies of that clue.

Use logic to decide which cells must be shaded, which cells must stay open, and how the board should be divided.

Features:
- Unique logic puzzle rules
- Multiple difficulty levels
- Clean grid-based gameplay
- Helpful optional error hints
- Simple controls
- No guessing required
- Designed for thoughtful puzzle solving

Can you separate every clue region and complete every domino?