I can't see the mate in 3

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ChumbucketMngr
I played this 5 minute game and when I went to see the analysis, it said the opponent had a mate in 3 at this position. I can't seem to figure it out tho. What moves would have gotten him a win?
Diakonia

You didnt include the game.

Monie49
I can't see a mate in 3
macer75

Rd7 Qc2 Nc6#