Getting even by giving a bribe? (8)

I believe the answer is:

squaring

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This might be a double definition.

'getting even' is the first definition.
The definition and answer can be both related to competing as well as being present participle verbs.
Maybe you can see a link between them that I don't see?

'giving a bribe?' is the second definition.
The answer and definition can be both to do with motion as well as being present participle verbs.
Perhaps you can see a link between them that I can't see?

'by' acts as a link.

Can you help me to learn more?

I've seen this clue in The Globe and Mail.

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