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This is a list of known shapes that have interchangeable pieces, allowing for flexibility in building setups.

Dimension format is: Width x Height

2 Piece Setups

LJ Horizontal Arm

LJ Vertical Arm

JT and LT

3 Piece Setups

3x4 Boxes

JOL and LOJ

JJO and LLO

OJJ and OLL

JZJ and LSL

JSL and LZJ

TTJ and TTL

IOO and OOI

4x3 Boxes

OLJ and LJO

OJJ and OLL

JZL and LSJ

IOO and OOI

OSZ Ball

ZOS and SOZ

SZO and OSZ

OSZ Stairs

OZS and OSZ

SZO and ZSO

4 Piece Setups

Mushroom