Discovering Rikudo: Rules and Tips
Put the numbers from 1 to 36, 60 or 90 to create a path of consecutive numbers. Numbers and links between cells are given to help finish the game. Two following numbers must be next to each other. A link indicates a crossing point of the path. At the end, the entire grid must be full!
![Rikudo grid size 36](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-1.png)
![Rikudo path direction](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-2.png)
![Rikudo filled grid](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-3.png)
Grid size and difficulty : Various grid sizes exist (36, 60 or 90). Larger grids can be more difficult. We offer 4 difficulty level : Easy, Medium, Hard and Evil
![Rikudo grid size 36](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-4.png)
![Rikudo grid size 60](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-5.png)
![Rikudo grid size 90](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-6.png)
Tip #1: You won't trap cells.! At the end the grid must be full. If a cell is encircled while filling the grid, it becomes trapped. Identify these situations and avoid them.
![Rikudo trapped tile](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-7.png)
Tip #2: You will anticipate your path. Two paths cannot cross each other. Search for possible crossing paths and choose other available paths.
![Rikudo crossed paths](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-8.png)
Tip #3: Think about uniqueness. The grid has a unique solution. Therefore if you can switch two numbers next to each other without disrupting the main path, it means that it is not the solution!
![Rikudo unique solution](https://www.rikudo-puzzle.com/img/Rikudo-tutorial-9.png)