

Definitions  
Integer – A member of the set of positive whole numbers {1, 2, 3, …}, negative whole numbers {1, 2, 3, …}, and zero {0}. Matrix  A rectangular array of numeric or algebraic quantities subject to mathematical operations. 

Object of the Game  
The object of the game is to create a net positive or negative score that is farthest away from zero through the addition and subtraction of integer matrices.  
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Number of Players  
2 individual players, or 2 teams with 2 players on a team.  
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Equipment  
Game board 49 game discs Game disc storage bag Net score sheets 

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Rules  
(1) Setting The Players  
Decide who is to be positive player and who is to be negative player in the game. The goal for the positive player is to accumulate a net score that is as far away from zero in the positive direction. The goal for the negative player is to accumulate a net score that is as far away from zero in the negative direction.  
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(2) Setting Up The Board  


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(3) Players Turn  
Negative player plays first. Reach into the bag and remove a disc. Three things must then occur, the player: (A) creates a matrix on the board; (B) sums the matrix score; and (C) adds the matrix score to his or her net score card. 

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Game Note: A player may not create a matrix that will cause the board to turn all one color. For example, if there are 8 white discs on the board and 1 black disc, the player may not place a disc that will cause the board to contain 10 white discs and 0 black discs. It must be played as a black disc, regardless of the scoring outcome.  
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(B) Adding The Matrix Score  
Each disc has two numbers, one side positive (or zero) and the other side negative (or zero). When the discs have all been flipped in a turn, the matrix of zeros, positive numbers, and negative numbers is added and the player receives that score as a matrix score. Figure 4 shows the sum of a white matrix. Notice that the black disc (4) is not included in the matrix score. 



Figure 5 shows the addition of multiple matrices (assuming the player placed the black –3 disc and created 2 matrices. Notice that the white discs are not included in the total matrix score.  


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Winning The Game  
At the completion of the game, the player with the score farthest from zero (greatest absolute value) is declared the winner. Refer to the example below.  


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