Square (スクエア Sukuea) is the place where Z/X, Z/X Extra, and Z/X Overboost cards are played in the playing field.
There are 2 different type of Square, Normal Square and Player Square, with the latter also double as the place for Player Card. The playing field itself is composed of 9 Squares (2 Player Square and 7 Normal Square) in a 3×3 grid, further divided into 3 different area based on their position to the player—Army Area, Center Area, and Enemy Army Area.
Once a Z/X is played and put on a Square, it cannot be moved onto another Square, except by a card ability. Most card abilities or effects affect Z/X on Square, and often specifically designates which Square it affects, either by mentioning the Square type or by using the Square Designation Diagram.
Comprehensive Rules
303 Square
303.1 Zone where the cards with Player and Z/X, Z/X Extra, or Z/X Overboost card type are placed.
303.2 Square is shared by both player, there are 9 Squares in total, lined up in 3×3 grid. Vertically or horizontally adjacent Squares are both Square next to each other. Diagonally adjacent Squares are not.
303.2a The meaning of distance from a certain Square to another Square, and also as a reference, is the smallest amount of Squares that able to reach the other Square, counting from the Square next to that certain Square.
[ Example ] Distance to the next Square is 1.
[ Example ] Distance to the diagonally positioned Square is 2.
303.3 All Squares is either a Normal Square or a Player Square.
303.3a Among the Squares, the 2 Squares that was vertically adjacent to the middle Square are Player Square.
303.3b Among the Squares, the 7 Squares that are not a Player Square are Normal Square.
303.4 Squares may belong to groups called Area.
303.4a For a player, their own Player Square (402.1a), as well as Squares next to it except the middle one, belong to Army Area.
303.4b For a player, the opponent's Player Square (402.1a), as well as Squares next to it except the middle one, belong to Enemy Army Area.
303.4c Squares that does not belong to Army Area or Enemy Army Area belong to Center Area.
303.5 Cards put on Square has either Reboot or Sleep State (302.2).
303.5a If a card is put on Square from anywhere except from Square, it is put in Reboot State.
303.6 If a text refer to "Z/X" without specifying a particular zone, it refer to cards with Z/X, Z/X Extra, and Z/X Overboost card type on Square. Similarly, if a text refer to "Player" without specifying a particular zone, it refer to cards with Player card type on Square.
303.6a If any effect try to move a card with Player card type to other Square, that card does not move.
303.7 Square is a public zone. It is possible to arbitrarily change the order of cards in your control that you put on Square.
