Re-directing URLs with dates to URLs without dates

When I first started writing entries I decided to include the month and day in the URL’s, thinking I might need them. In the end turns out I didn’t.

I found that I can access a particular entry as  

Typing in the second one would simply lead to a 301 redirect to the first.

Is there a way to make it so that typing in the long form with the date would re-direct to the second without breaking any permalinks?

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