It is a classic intellectual puzzle game of opponent type that is done in line three-dimensional!
Rules are very simple and alternate placement of the balls is to win four in any one of vertical horizontal diagonal.

Spatial recognition ability is nourished because it can look from any angle in three dimensions.
Settlement arrives in a short time so you can enjoy repeatedly from small children to adults.
In addition to battle between humans you can play against computers.
Also I prepared a hint function for when I do not know the next one.

【how to play】
1. Choose whether it is a human match or a computer match
2. Decide the color of your sphere
3. I will put my ball one by one alternately
4. A person who lists four balls vertically horizontally or diagonally before the opponent win is the winner

【credit】
I used the following items.
- pocket sound
- sound effect lab
- GraphicBurger