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Forfour
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About the game
A cluster of coloured rings sits in the middle of the board, starting from a single grey ring. From time to time a new ring appears at the edge of the board, with a pale line in its colour showing the row or column it will travel along, and then it flies in towards the cluster. It sticks to the first free spot it finds on the near side of the cluster. You cannot move the ring. What you can do is tap, which turns the whole cluster a quarter turn clockwise, so that a different face of it is the one the next ring will hit.
When four or more rings of the same colour end up touching, they pop, and so does everything that is no longer connected to the grey ring in the middle. The more that disappears at once, the better: the score is the number of rings removed, minus three, squared. Now and then a grey ring comes along instead, and it takes on the colour of the first ring it touches, which is handy for finishing off a group.
The game ends when a ring has nowhere to land, which happens when the cluster has grown out to the edge of the board on the side it is coming from. The longer you play, the faster the rings come.
Forfour is one of the mini-games that Kenta Cho, who works as ABA Games, makes with his crisp-game-lib library. There are no image or sound files: the graphics are drawn by the code, and the sound effects and music are generated while you play.
Playing it here
Click Play, then click, tap or press Space inside the game to start. Nothing is installed or sent anywhere. The best score at the top right is only remembered while the page stays open.
Controls
| Input | Action |
|---|---|
| Tap (click, touch or Space) | rotate the cluster a quarter turn clockwise |
A few things worth knowing
Read the guide line. Its colour is the colour of the ring on its way, and its position tells you which side of the cluster it will land on.
Rotate before it arrives. Turning at the last moment is fine, since the ring does not wait for you, but a tap after the ring has landed only helps the next one.
Go for big groups. Popping several rings at once also drops everything that was hanging on them, which is where the big scores come from.
Credits and licence
Forfour was made by Kenta Cho (ABA Games) and published under the MIT licence in the crisp-game-lib-games repository. The licence texts of the game, of crisp-game-lib and of the libraries that come with it are linked from this page. The game files are served as published, with only the starting page replaced so that nothing is loaded from other sites.