In the rule “The Arena”, change the first paragraph from

The Arena is a 9x9 grid of Squares. A Square within the Arena is referred to by a letter from A to I (designating its column) followed by an integer from 1-9(designating its row). The columns, are assigned consecutive letters left-to-right, starting with A. The rows are assigned consecutive numbers bottom-to-top, starting with 1.

to

The Arena is a 9x9 grid of Squares. A Square within the Arena is referred to by a letter from A to I (designating its column) followed by an integer from 1-9(designating its row). The columns, are assigned consecutive letters left-to-right, starting with A. The rows are assigned consecutive numbers bottom-to-top, starting with 1. For determining adjacency, Column A is next to column I and row 1 is next to row 9.