After the East Wind player has decided which side of the Wall will be opened, as explained in the section Deciding Which Side of the Wall is to be Opened, the player who is facing this side of the Wall will have to decide at which position in his or her side of the Wall the breach will be made.
Assume that the East Wind player has thrown "12" and the North Wind player will open his or her side of the Wall.
To do this the North Wind player now throws the two dice. The number that is thrown is added to the previous number (thrown by the East Wind player) the total number indicates where the Wall be opened. Say the latest score is "4" and the previous score which was "12" - we now have a total of "16".
The North Wind player now simply counts over the top of the tiles from the left hand side of the Wall that the player is facing until the number "16" (in our example) is reached. If the total number thrown is greater than "18" then simply continue counting around the right hand corner of the Wall. The tiles (there will be two tiles - remember that the Wall is 2 tiles high all around) that occupy position "16" mark the opening position of the Wall.
The opening position tiles are now removed to one side - these tiles are referred to as the Loose Tiles - at this stage in the Game, the Loose Tiles are used to mark the end of the Wall. If you like this is simply a visual reminder in a Game of where the Wall actually finishes. The Loose Tiles are now placed as follows:
The top tile is placed (face down) on top of the Wall immediately to the left of the opening in the Wall. (In our example, on top of the tiles that occupy position "15" in the Wall).
The bottom tile is placed (again face down) on top of the Wall three positions to the left of the opening in the Wall. (In our example, on top of the tiles that occupy position "13" in the Wall).
The last 14 tiles in the Wall to the left of the opening and the Loose Tiles are referred to as the Kong Box. The purpose of the tiles in the Kong Box is to supply extra tiles to players during a Game. These tiles perform no other function throughout a Game.
Throughout the whole procedure it must be remembered that tiles are kept face down - at no time must any player see the markings on the tiles!