Read the pips. Mark the mines.Break every shell to get to the center.
Choose any cell. Your first move is safe.
Each pip means one mine in a neighboring block on this shell. No mines beneath the surface count.
Rotate only (default): drag to rotate a centered cube, with pan and zoom disabled. Full control: enables the pan and zoom gestures below. Switching back recenters the cube and resets zoom.
Click to revealRight click to flagLeft drag to rotateRight / middle drag to panShift + left drag also pansWheel zooms toward pointer
Tap to revealHold to flagOne finger rotatesTwo fingers panPinch zooms at its midpoint
Clear around a clue: flag the matching number of neighboring mines, then tap/click the revealed clue. Incorrect flags can trigger a mine.
One block, one clue: edge and corner markings repeat on the block’s visible sides. Edge blocks have 8 neighbors; corners have 6. Hover a block to highlight its neighbors.
Reveal every safe block to break the shell. Detonations excavate safe openings in the next layer. Reach the crystal to finish.
Verified no-guess boards can be solved using logic alone. Your first reveal is safe and opens any connected empty cells. Mine locations stay fixed once play begins.
For large cubes, switch to Full control and zoom in to select individual blocks. On a phone, Easy and Medium offer larger touch targets.
Success is wins divided by games started. Games count after the first reveal; restarted and unfinished games remain in Played. A one-shell Custom game counts when you reach its core.
Tiles count unique safe blocks revealed per game, including flood-fill and blast openings. Flags count placements, including re-placing a removed flag. Best times are for completed runs; Custom combines all custom settings.