xoxo

Balanced diversity solver xoxo to the square.

Bug Tracker

Feature requests and bug reports are best entered in the todos of xoxo.

Primary Source repository

The primary source of xoxo lives somewhere on a mountain in Central Switzerland. But, we use decentralized version control (git), so any clone can become the source to everyone's benefit, no central only code. Anyway, the preferred public clones of xoxo are:

on codeberg - a democratic community-driven, non-profit software development platform operated by Codeberg e.V.
at sourcehut - a collection of tools useful for software development.

Example

Given the input file:

❯ cat test/fixtures/grid_s_1.txt
O
X
OX   X
 XX
   OO
XXO

for clarity showing the dump to expose the regularity:

❯ xxd -c 7 test/fixtures/grid_s_1.txt
00000000: 4f20 2020 2020 0a  O     .
00000007: 5820 2020 2020 0a  X     .
0000000e: 4f58 2020 2058 0a  OX   X.
00000015: 2058 5820 2020 0a   XX   .
0000001c: 2020 204f 4f20 0a     OO .
00000023: 5858 4f20 2020 0a  XXO   .

xoxo will try to solve the puzzle in a diverse but balanced way:

❯ xoxo test/fixtures/grid_s_1.txt
Problem:

,---+---+---+---+---+---,
| O |   |   |   |   |   |  1
|---+---+---+---+---+---|
| X |   |   |   |   |   |  2
|---+---+---+---+---+---|
| O | X |   |   |   | X |  3
|---+---+---+---+---+---|
|   | X | X |   |   |   |  4
|---+---+---+---+---+---|
|   |   |   | O | O |   |  5
|---+---+---+---+---+---|
| X | X | O |   |   |   |  6
*---+---+---+---+---+---*
  1   2   3   4   5   6


Solution:

,---+---+---+---+---+---,
| O | O | X | O | X | X |  1
|---+---+---+---+---+---|
| X | O | O | X | X | O |  2
|---+---+---+---+---+---|
| O | X | O | X | O | X |  3
|---+---+---+---+---+---|
| O | X | X | O | X | O |  4
|---+---+---+---+---+---|
| X | O | X | O | O | X |  5
|---+---+---+---+---+---|
| X | X | O | X | O | O |  6
*---+---+---+---+---+---*
  1   2   3   4   5   6