I think there should be a way for the player to eliminate numbers from boxes. Eg. a box has the numbers [3,2,5] but I can rule out 3. I want to be able to delete it so that the box just says [2,5].

This game really really needs a night-friendly mode. My eyes are burning even on lowest contrast/brightness with f.lux turned on. Just a dark background with warm-coloured tiles, it shouldn't be to hard and it would be very helpful!

Where can I find the game save data?

Similar to the other puzzles, it would be nice to have some visual information on which bonus levels have been solved and which have not. Although the game is fun and replaying a level is not a problem, for the 'completists' among us, it would be nice to know if we played all levels (at least) once. And maybe, for the achievement-♥♥♥♥♥♥ here, some (hidden?) achievements on the bonus levels as well... But (for me) this is not a high priority request. :-) Great game, hope to see more of it/something simil...

Hello! I can't get the game to start on Ubuntu - it just crashes to desktop with no errors. Running from the command line gives this output: Set current directory to /home/pacifist/.local/share/Steam/SteamApps/common/Cross Set Found path: /home/pacifist/.local/share/Steam/SteamApps/common/Cross Set/CrossSet.x86 Mono path[0] = '/home/pacifist/.local/share/Steam/SteamApps/common/Cross Set/CrossSet_Data/Managed' Mono path = '/home/pacifist/.local/share/Steam/SteamApps/common/Cross Set/CrossSet_Data/Mono' ...