Checkerboard case pattern
All the squares are white. Make some of them black. But only the right ones.
Start file
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
End file
aAaAaAaA
AaAaAaAa
aAaAaAaA
AaAaAaAa
aAaAaAaA
AaAaAaAa
aAaAaAaA
AaAaAaAa
View Diff
1,8c1,8
< aaaaaaaa
< aaaaaaaa
< aaaaaaaa
< aaaaaaaa
< aaaaaaaa
< aaaaaaaa
< aaaaaaaa
< aaaaaaaa
---
> aAaAaAaA
> AaAaAaAa
> aAaAaAaA
> AaAaAaAa
> aAaAaAaA
> AaAaAaAa
> aAaAaAaA
> AaAaAaAa
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