Materials
Huaca is played on the spaces of a 9x9 Sudoku like board that is divided into nine 3x3 sub-boards.
You will also need a supply of black and white stones.
Definitions
Adjacent – means orthogonally adjacent.
Pair - two friendly stones.
Group- Two or more adjacent friendly stones.
Play
Board starts out empty.
Black starts, swap rules apply, then turns alternate.
On a turn take one of the following actions.
1. Drop a pair of stones onto two adjacent empty spaces that are not adjacent to a group or
2. Drop one friendly stone onto an empty space that is either adjacent to an enemy or friendly stone already on the board
The game ends when a player is unable to take his turn.
Goal
A 3x3 board is won by a majority of grouped friendly pieces. The game is won by a majority of won 3x3 boards.