A mouseclick on any number of the green-bordered area ("number-pool") moves this number into the first empty
field of the red-bordered area ("game-area");
a click on any number of the game-area brings the number back to its original place in the pool.
||All numbers should be brought into the game area such that numbers in neighbouring fields always "fit" together, i.e.: depending on choice, the sum of every two neighbouring numbers must be a square or
a prime, or the square sum of any two neighbouring numbers must be a prime. |
The shape of the game-area and the game-rule may be changed
(change row or column size and/or click one of the radio-buttons on the right; a new window opens).
When "show" or "quick" is activated, a backtracking-algorithm will try to find a solution, interruption can be caused
by clicking the option "mouse". When a solution is found, the algorithm will end, and in that case a search for another solution may be continued with the button "new solution". The delay (in milliseconds) regulates the frequency of image output, if "show" is activated.
© H.B. Meyer