Same Game
Clear the board by removing groups of touching squares of one colour, and score big with the large ones
Arrow keys move and wrap round the edges, Enter selects a group and removes the selected group, Space selects a group and unselects it. Ctrl or ⌘ Z undoes.
Click or tap a group of two or more touching squares of one colour to select it, then click or tap it again to remove it. Right-click, Ctrl-click or long-press an unselected group to select it, or the selected group to unselect it. Arrow keys move; Enter selects a group and removes the selected one; Space selects a group and unselects it. Ctrl or ⌘ Z undoes; Ctrl or ⌘ Shift Z or Ctrl or ⌘ Y redoes.
Progress saves on this device.
How to play
Clear the board. Select a group of two or more squares of one colour that touch along an edge, then remove it. Squares above a removed group fall down, and an empty column closes up by shifting the columns on its right to the left.
A group of n squares scores (n − 2)², so a group of two scores nothing and larger groups score more: it pays to build big groups. When the selection is a group, the status says what removing it is worth. Clear every square to win.
If only single squares are left, the board is a dead end: no group can be removed and the game cannot be won from here. Undo steps back, and Restart begins the board again.
Every square has a shape as well as a colour, and a selected group is drawn with an outline and stripes. On a dead end each remaining square shows a small ringed dot in its centre.
Engine: Simon Tatham’s Same Game (contributed by James Harvey), from the Portable Puzzle Collection. MIT license and credits.