Pipes 7×7: the small board
Forty-nine tiles: big enough for a few real insights, small enough for a coffee break. This is the size the home page plays until you choose another one.
On Normal difficulty the edges give you a start, and then the board stops you two or three times: that is where the rules about loops and islands come in.
Rules
Click a tile to rotate it. The puzzle is solved when the pipes form one network from the pump to every lamp, with no pipe pointing at nothing and no closed loop. Water shows how far the pump reaches, and the counter above the board shows how many lamps are lit.
Mouse and keyboard
- Click: rotate clockwise; Ctrl+click: rotate back.
- Right click: pin a tile you are sure of; a pinned tile does not rotate.
- Keyboard: arrows move the cursor, Space or Enter rotates, P pins, Ctrl+Z and Ctrl+Y undo and redo.
Touch screen
- Tap: rotate.
- Long press: pin a tile.
- The Pin button under the board swaps the two: a tap pins, a long press rotates.