Tapa

In a Tapa puzzle, the numbers in the clue cells indicate the sizes of contiguous groups of shaded cells in the surrounding eight cells. For example, a clue of "2 1" means there is a group of two adjacent shaded cells and a separate group of one shaded cell touching that specific clue.

The Tapa puzzle was invented by Turkish puzzle designer Serkan Yürekli. It has since become a staple in international puzzle competitions, frequently appearing at the World Puzzle Championship.

The shaded cells must form a single continuous wall without any 2x2 blocks of shaded cells. Additionally, cells with clue numbers can never be shaded over.

While both rely on numerical clues indicating adjacent filled cells, Tapa clues describe the sizes of distinct groups of shaded cells, whereas Minesweeper gives a single total count. Furthermore, Tapa requires the shaded cells to form one connected wall and explicitly prohibits 2x2 squares.