I automated the game on Pocket PC, with a random generator to get more grids to find. I also added some visual help to show rule violations, which is finally funnier because it's hard to see on a paper.

Game is freeware, enjoy!

Rules:
- Each magnets uses two white blocks.
- Two positive poles never touch themselves, as well as negative poles.
- No 2x2 block square is fully occupied.
- The number of positive poles is indicated on the edge of rows and columns.

Install:
- Just one file to manually copy on your Pocket PC from the zip.

Update Description:
v2.3:
- Added 2 players and statistics.

v2.2:
- Added best time, welcome screen, eliminated SH3 & MIPS versions.

v2.1:
- Handle double-click, for fast clickers.

v2.0:
- Added icons, changed menu, more stable version.

v1.1:
- Fixed save/restore minor bug in registry.