I just learned Square-1 CP parity and here is why you should learn it.

[bcube]

"Where can I find a PDF or something with the cases or how it works?"

I believe it works in a way which is being described in a parity problem article (see section A parity problem of chosen combinatorial puzzles).

Algorithms/documentation can be found elsewhere, link 2.

Edit: too (a few seconds, I guess) late

 

[Neil Johnson]

"Where can I find a PDF or something with the cases or how it works?"

I believe it works in a way which is being described in a parity problem article (see section A parity problem of chosen combinatorial puzzles).

Algorithms/documentation can be found elsewhere, link 2.

Edit: too (a few seconds, I guess) late

Thanks!