Could it be the cry of the triumphant chess player? (6,4)

I believe the answer is:

mating call

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'cry of the triumphant chess player?' is the definition.
'mating call' can be an answer for 'cry' (thesaurus). I'm not sure about the 'of the triumphant chess player?' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

I've seen this clue in The Irish Independent.

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