Number of solutions by position of X-piece:
 



6






8






2






2



 
 
 Total number of solutions: 18
 
1


1



2


1



3


1



4


1



5


0



6


0



7


1



8


1



9


2



10


2



11


2



12


2



13


0



14


0



15


1



16


1



17


1



18


1



 View all 18 solutions as a text file…
 View all 9 connections between the solutions as a text file…