Grid Solve

About Grid Solve Android Game

slide-swap pairs of randomly shuffled "number" tiles so that their arrangement satisfies all row and column "function" constraints, hence solving the grid.

"function" constraints restrict any numbers in a row or column to be a member of one of the following sets:

* "odd" - must be odd.
* "m2", "m3", "m5", "m6", "m7" - must be a multiple of 2, 3, 5, 6 or 7.
* "f36", "f42" - must be a factor of 36 or 42.
* "square" - must be a square number (i.e. 4, 9, 16, ...).
* "triangle" - must be a triangle number (i.e. 3, 6, 10, 15, ...).
* "[P]rime" - must be a prime number (i.e. 2, 3, 5, 7, ...).
* "[F]ibonacci" - must be a fibonacci number (i.e. 2, 3, 5, 8, ...).

* additionally, "#0" to "#9" represent "checksum" constraints, such that any numbers in a row or column, when added together, must result in a "units" digit equal to the checksum (i.e. given "#6", 4 + 13 + 9 is ok, but 22 + 3 + 36 + 11 is not, since resultant "units" digit is 2).

features a "simplify" button that activates after 20 seconds of touch screen inactivity; player can then choose to either continue manipulating tiles in order to solve the grid, or "simplify" the puzzle (one tile at a time) by repeatedly pressing the "simplify" button as required; note that "auto-solving" a grid will signal an amber background as opposed to green.

choose from 4 difficulty settings that determine the overall complexity of generated puzzles.

main title screen demo's a random valid grid every time (upon return) for study.

novel random puzzle generation offers endless replay and challenge :)