Is this board deterministic?
Yes. The mine positions and safe opening are fixed for this published date.
The opening is pre-cleared. Tap to reveal, switch to Flag on touch screens, or right-click to flag. Swipe horizontally to move across the larger field.
The safe opening is ready. Follow the numbered clues.
Published daily archive
A fixed board with an honest opening.
This 20 × 20 field contains 70 mines and begins from the same pre-cleared safe square for every player.
The release solver completed it in 155 logical steps using clue and subset deductions without guessing.
Common questions
Will a wrong tap erase my progress?
No. The mine stays covered and your saved board remains available.