Chain Reaction

Aim of the game
The idea of Chain Reaction goes back to the games of the early 80s seeing quite a few similar variants realised on quite a few machines (Atari 1020, C64, Amiga...). This realisation is the best, of course ;-)

Course of the game
Each player places a piece by turns. One may only place in empty fields or fields with one's own pieces. One field can be filled with the maximum amount of pieces marked with grey points. In case it exceeds that amount of pieces they get spread onto all neighboured fields with an adjacent edge and turn the pieces lying there into one's own colour. This way you can excite chain reactions enabling oneself to artfully remove the adversary's pieces.

Hints
The mouse cursor shows what one can do on a current field:

• Normal: field is occupied by the adversary, one may not place here
  
• Hand: one can place a piece here without further consequences
  
• Gridlock: the field needs just one more piece, then it will explode
  
• Hour glass/Clock: either a chain reacion is currently running, or the adversary is not ready, yet

Game variants

• Normal: All pieces which have been set remain on the board.
  In case a field gets more pieces than necessary to explode in a chain reaction, these redundant pieces are spread on the surrounding fields.

• Limited: In an explosion redundant pieces get deleted.
  Fields explode exactly with the amount of pieces necessary for an explosion, even if a field gets overloaded by a chain reaction.