Models

 An attempt to show how a block could look like following simple rules



Research of one shift - 4,2 - line


Research of one shift - 4,2 - compact



Research of two shifts - 2,2,2 - line


Research of two shifts - 2,2,2 - compact



Research of one shifts - 2,4,2 - line

Research of one shifts - 2,4,2 - compact