...........
.[X][X][X].
.[ ][ ][ ].
.[ ][ ][X].  1 THING CUT IN 9 AND 4 PARTS THERE ~ 4 IN 9 ~ (IN 4 9)
...........

...........
.[X][X][ ].
.[ ][ ][ ].
.[ ][X][ ].  1 THING CUT IN 9 AND 3 PARTS THERE ~ 3 IN 9 ~ (IN 3 9)
...........

...........
.[X][X][X]. ((IN 4 9) (IN 3 9)) (IN 7 9) ;; META TRICKERY CLOSE-REDUCE OVER THE SAME TYPE
.[X][X][X].
.[X][ ][ ].
...........

...........
.[X][ ][ ]. (IN 1 9)
.[ ][ ][ ].
.[ ][ ][ ].
...........

........... (IN 2 3)
.[   X   ].
.[   X   ].
.[       ].
...........

...........
.         . ((IN 1 9) (IN 2 3)) ?
.   ?     .
.         .
...........

  IDEA : COMMENSURATE, RELATE, DESCRIBE ONE WITH THE OTHER
  * META TRICKERY : UNITIZE CUT CRUFT AWAY, FIX VARIABILITY, EXPOSE RELATIONS
 [ ]       ~ (IN 1 9)
 [       ] ~ (IN 1 3)
 [ .. .. ]   (IN 1 3) ~ ((IN 1 9) (IN 1 9) (IN 1 9))

             (IN 2 3) ~ ((IN 1 9) (IN 1 9) (IN 1 9)(IN 1 9) (IN 1 9) (IN 1 9))
			            ((IN 2 9) (IN 1 9)(IN 1 9) (IN 1 9) (IN 1 9))
						...
						(IN 6 9)

						((IN 1 9) (IN 2 3))
						((IN 1 9) (IN 6 9))
						(IN 7 9)

...........
.[X][ ][ ]. (IN 1 9)
.[ ][ ][ ].
.[ ][ ][ ].
...........

........... (IN 2 3)
.[   X   ].
.[   X   ].
.[       ].
...........

........... (IN 2 3) ~ (IN 6 9)
.[X..X..X].
.[X..X..X].
.[       ].
...........