It means every board is checked before you see it. A logic solver plays the board using only deduction from the numbers; if it cannot finish, the generator moves a mine and tries again. Boards that would end in a 50/50 coin flip never reach you. With ordinary random mine placement, measured over 60 boards, 29 of them required a guess — that is the thing this version removes.

No, and it will not be a bare number either. The mines are placed after your first click, and the cell you clicked plus all of its neighbours are kept clear, so your opening move always spreads into a region. That matters: an opening that reveals a single "1" would put you in a guessing position on move one.

If you click a number whose mines are all flagged already, the game opens every remaining neighbour at once. It is by far the fastest way to clear a board, but it trusts your flags completely — if one of them is in the wrong place, chording opens a mine. It is a bet you are making on your own earlier reasoning, not a free shortcut.

Tap to open a cell, and long-press to flag one; there is also a Flag button if you prefer to toggle a mode rather than hold. Cells never shrink below a comfortable touch size, so on the larger boards the grid becomes wider than the screen and you drag it to scroll instead. A short tap opens, a drag scrolls, and the two do not get confused with each other.

One board a day, generated from the date, so everyone playing that day gets exactly the same one. Clearing it extends your streak, and you can copy a short result to share that says your time and streak without spoiling the board itself. Playing it a second time on the same day does not extend the streak.

It opens one cell that logic can already prove is safe, so it never tells you anything the board was not already telling you. Because every board here is solvable by deduction, a hint is always available and always honest — it is the step you missed rather than a peek at the answer.