Support
Need a hand, found a bug, or have an idea? Here’s how to reach it.
Report a bug or request a feature
Lattice Five is developed in the open. The best place for bugs and requests is the issue tracker:
Please include your device and OS version, and the steps to reproduce — it makes fixes much faster.
Common questions
Where are my scores and replays? On your device, and nowhere else. Every finished game is kept as a full replay you can revisit from the History tab.
Can I play on Mac, iPhone, and iPad? Yes — it’s one free app across all three, from a single App Store listing.
How do challenge codes work? Every generated board has a short code (shown in the header). A friend can enter it under Enter Code… — same code, same board, anywhere. There is no server; the code itself describes the board.
What are 5T, 5D, 4T, 4D? Rule variants: lines of 5 or 4 dots, with collinear lines allowed to Touch at endpoints or required to stay Disjoint. 5T is the classic. The 4-dot games are fully solved — perfect play reaches exactly 62 (4T) and 35 (4D), if you can find it.