Enigme 1.

Zone de jeu

À quelle condition le point rouge devient-il bleu ?

A = (-14, 14)
B = (-6, 4)
C = (2, 4)
D = (-6, 14)
poly1, a, b, c, d = Polygon(A, B, C, D)
E = (-2, 18)
F = (-2, 0)
f = Line(E, F)
A' = Mirror(A, f)
B' = Mirror(B, f)
C' = Mirror(C, f)
D' = Mirror(D, f)
poly1', a', b', c', d' = Polygon(A', B', C', D')
H = (-16, 18)
I = (16, 18)
J = (16, 0)
K = (-16, 0)
Playground, h, i, j, k = Polygon(H, I, J, K)
G = PointIn(Playground)