Fourth row edge templates
Contents
Fourth row edge templates with one stone
IV-1-a
IV-1-b
The shaded cell is not part of the template; it can be occupied by Blue.
IV-1-c
IV-1-d
Fourth row edge templates with two stones
IV-2-a
IV-2-b
IV-2-c
IV-2-d
IV-2-e
IV-2-f
IV-2-g
IV-2-h
IV-2-i
IV-2-j
IV-2-k
IV-2-l
Red can connect both red stones to the bottom (i.e., Red does not have to choose which stone to connect).
IV-2-m
Red can connect the stone marked "↑" to the bottom. There are infinitely many related templates, with the two red stones arbitrarily far apart. See edge template IV2m for more details.
IV-2-n
Red can connect both red stones to the bottom (i.e., Red does not have to choose which stone to connect).
Fourth row edge templates with three stones
IV-3-a
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each other in some other way.
IV-3-b
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each others in some other way.
