Kitsune solves a given problem by computing all the "best solutions" : if the target is reachable, these are all the ways to reach it. If it is not reachable, these are the best approximations.
You can change any tile's value with the mouse wheel, or with left or right click. After having chosen the target and tiles, just click on "Solve" to compute the solutions, or "Play" to try to solve the problem. The default rules used by Kitsune are :
If you want to train yourself, click on "Random" to generate a random choice of tiles and target. A bar indicates the remaining thinking time. Default round length is 50 seconds, but this parameter is adjustable in the "Options" menu.
Kitsune displays first the solutions which use less tiles.
Kitsune does its best to display only a minimal set of different solutions : for example, we don't need to display both 6×100 and 100×6, so Kitsune will display one of these two solutions.
You can find on our web site a lot of statistical results on the game, computed with Kitsune.