1-4M-4M-1
Mirror, then rotate alternate cells 270 degrees counterclockwise.
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1-4-4-1
Rotate alternate cells 270 degrees clockwise. See “1-2-2-1” for a rotated view.
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1-2-2-1
Rotate alternate cells 90 degrees clockwise.
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1-3M-1-3M
Mirror, then rotate alternate columns 180 degrees. I call this one “Birds of a Feather” because when you turn it upside down, the left-facing nesting birds become right-facing nesting birds.
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1-2M-1-2M
Mirror, then rotate alternate columns 90 degrees counterclockwise.
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1-4-1-4
Rotate alternate columns 270 degrees.
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1-1-2M-2M
Mirror, then rotate alternate rows 90 degrees counterclockwise.
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1-1-1M-1M
Mirror alternate rows.
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1-1-2-2
Rotate alternate rows 90 degrees clockwise.
