Kapama (from Turkish, literally "closing") consists of a rectangular or square grid with diagonal lines in some cells. The goal is to blacken some cells to create pairs of figures (twin shapes). Twin shapes are symmetrical with respect to a diagonal line. Twin shapes are connected with a diagonal line. No two shapes may share an edge. Cells with diagonal lines can not be blacken. Numbers outside the grid show the number of black cells in corresponding row or column.
Cross+A can solve puzzles from 4 x 4 to 30 x 30.