|Unified List||BC LRW|
|Vic Ceder's list||A|
|Dave Wilson's list||2006|
A 16 matrix can be configured as 4x4, 2x8, or 1x16. The rules for 16 matrix are the same as those for 12 matrix.
In the case of 2x8 matrices, 4 positions are considered ends, and all others are centers. There are three center boxes in a 2x8 matrix.