Object: Find the longest chain reactions. 
 
Like in the game 'Domina 5', a clicked domino turns, then slides and makes another domino do the same if it bumps into one.
Here we present the longest chain reactions that this rule creates. The best solutions found by the author are given, all you have to do is to click the correct domino once.
 
You are invited to create your own setups (use the right mouse key) and try to find longer chain reactions. Especially for more than 9 dominoes the maximum length of a chain reaction is not known.
Domina Max offers several buttons to make the board setup easy and fast: Click the SETUP button. Clicking the board then deletes a piece and places a domino either horizontally or vertically, depending on another switch that you can set. When you are finished with the setup, click the PLAY button. You can switch from one mode to the other at any time.
 
Another unsolved problem in this context is the following: With the right (finite) number of dominoes - and maybe a bigger board - can there be a chain reaction that lasts forever?
 
Variant 1 : 4 dominoes have longest chain reaction of 5 moves.
Variant 2 : 5 dominoes have longest chain reaction of 7 moves.
Variant 3 : 6 dominoes have longest chain reaction of 8 moves.
Variant 4 : 7 dominoes have longest chain reaction of 10 moves.
Variant 5 : 8 dominoes have longest chain reaction of 12 moves.
Variant 6 : 9 dominoes have longest chain reaction of 14 moves.
Variant 7 : empty 9x9 board for setup trials
Variant 8 : empty 18x18 board for setup trials
 
 
More freeware as well as real puzzles and games at my homepage http://karl.kiwi.gen.nz.