Highlight a cell D3, if any number in K3:O3 matches?

(This is for Google Sheets)

If a number in the "Numbers Played" row shows up in the "Winning Numbers" section on the right, in the same row, I need it to highlight that number.

I thought I had it working, but in the 4th row, in the "Winning Numbers" section there is a 19, and there is also a 19 in the "Numbers Played" section, but it's not highlighting.

How can I get the "Numbers Played" row to highlight a number, if that number is in the same row on the right, in the "Winning Numbers" section?

(I would post a link but it's not letting me)

Have a look at this and see if it is the conditional formatting you're looking for.

How about this:
=COUNTIF($K$3:$O$30,$O3)>1

Attachment 808648