Standing stones flatten

[Innoviox]

Excerpt from output of python3.6 main.py -w ai:3

4.283537149429321
    WHITE    BLACK
 1  Cb2
    1    2            3    4    5
a   @a1  @a2          @a3  @a4  @a5
b   @b1  BLACK{C}@b2  @b3  @b4  @b5
c   @c1  @c2          @c3  @c4  @c5
d   @d1  @d2          @d3  @d4  @d5
e   @e1  @e2          @e3  @e4  @e5
3.645015001296997
    WHITE    BLACK
 1  Cb2      Ca3
    1    2            3            4    5
a   @a1  @a2          WHITE{C}@a3  @a4  @a5
b   @b1  BLACK{C}@b2  @b3          @b4  @b5
c   @c1  @c2          @c3          @c4  @c5
d   @d1  @d2          @d3          @d4  @d5
e   @e1  @e2          @e3          @e4  @e5
1.839872121810913
    WHITE    BLACK
 1  Cb2      Ca3
 2  Sa2
    1    2            3            4    5
a   @a1  WHITE{S}@a2  WHITE{C}@a3  @a4  @a5
b   @b1  BLACK{C}@b2  @b3          @b4  @b5
c   @c1  @c2          @c3          @c4  @c5
d   @d1  @d2          @d3          @d4  @d5
e   @e1  @e2          @e3          @e4  @e5
1.8416838645935059
    WHITE    BLACK
 1  Cb2      Ca3
 2  Sa2      b1
    1            2            3            4    5
a   @a1          WHITE{F}@a2  WHITE{C}@a3  @a4  @a5
b   BLACK{F}@b1  BLACK{C}@b2  @b3          @b4  @b5
c   @c1          @c2          @c3          @c4  @c5
d   @d1          @d2          @d3          @d4  @d5
e   @e1          @e2          @e3          @e4  @e5

Note that in ply 2a, White makes the rather nonsensical move Sa2, which is correctly translated in the board. But by ply 2b, it's flat, which makes more sense.