Open

8 shapes.

id	name	verdict	how	chiral
9/2127	the staircase	OPEN	Heesch ≥ 2
9/2650		OPEN	Heesch ≥ 2	yes
9/2671		OPEN	Heesch ≥ 2	yes
9/8203		OPEN	Heesch ≥ 2	yes
9/8214		OPEN	Heesch ≥ 2	yes
9/20656		OPEN	Heesch ≥ 2
9/24025		OPEN	Heesch ≥ 2	yes
9/24830		OPEN	Heesch ≥ 2	yes