Hexsweeper on a closed sphere — hex faces, six neighbors (classic Minesweeper used eight on a square grid).
Same dig-and-flag idea. First dig is always safe.
Clear every safe face. Numbers count mines among the six touching neighbors. Solid red faces are flags.
Tap outside the sphere to open the center menu: reset, undo, flag mode, board size, light or dark, warning style, and drag inversion. Progress autosaves through refresh. Reset or size change starts a new sphere (no confirm).
C menu · F flag · N counts · R reset · ? help
Riding on the original — history of Minesweeper
Also flat Hexsweeper · Fire · Plague