Boulders

Dig the dirt. The rocks fall. The diamonds open the door.

Start

Return leaves the title. R, after the third cave or a burial, starts from the first hole and skips the title.

The caves

Arrows or WASD. One step at a time.

Dirt comes up when you walk into it. A diamond counts. A rock can be pushed sideways when the far side is empty. It will not push into dirt, and it will not push up or down.

Anything round falls when the cell under it is empty. A rock sitting on another rock, or on a wall, rolls off the side when that side and the cell under it are both empty. Standing under a fall is how the cave keeps you.

The door stays shut until the diamonds on that cave are in hand. Then it opens. Walk through it.

Three lives. A fall spends one and puts the cave back the way it was. The third fall ends it.

The three holes

The first hole is the lesson. The boxed stone has a rock sitting on a diamond, and a row you can go around. The loose roof falls if you dig the cell under a rock. Take the diamonds from the side.