-- Meandros by Sktx
-- https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=0008W2

# 3

--hints
a1 = 6
d9 = 1
e1 = 8
e3 = 3
e9 = 7
f1 = 4
h4 = 5
i9 = 2

-- diagonal rule
!! i1 h2 g3 f4 e5 d6 c7 b8 a9

-- palindromes
b2 = a9
b1 = a8
c1 = a7
c2 = a6
c3 = a5

d1 = c8
d2 = c9
d3 = b9
d4 = b8
d5 = b7

g2 = f9
g1 = f8
h1 = f7
h2 = f6
h3 = f5

i1 = h8
i2 = h9
i3 = g9
i4 = g8
i5 = g7
