Rules Edit


Shade some empty cells to create a single connected group. Cells with numbers cannot be shaded, and the shaded cells cannot form a 2×2 square anywhere in the grid. Each numbered cell indicates the total number of shaded cells connected vertically and horizontally to that numbered cell, in a straight line till the next numbered/unoccupied cell, or the edge of the grid.

(Rules and example from WPC 2017 IB)

History of the puzzle Edit

Invented by Prasanna Seshadri (India). The first puzzle appeared on 2014 US Nationals under the name "Tapa View", but later renamed.[1]

Appearances in the past WPCs Edit

References Edit