Chess program low-down? (4,4)

I believe the answer is:

deep blue

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'chess program' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'low-down?' is the wordplay.
'low' becomes 'deep' (similar in meaning).
'down?' becomes 'blue' (both can mean sad).
'deep'+'blue'='DEEP BLUE'

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(Another definition for deep blue that I've seen is " Computer".)

I've seen this clue in the Sydney Morning Herald.

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