I am creating a rota on Google sheets and I am looking to highlight a name whenever that name comes up more than 6 times within a 13 column window.
At the moment the formula is =COUNTIF($B4:$Z4,"Louis")>6But I only want the name highlighted if it appears 6 times within any 13 columns that are adjacent (i.e it appears 6 times between B4 and N4).
Any help with this would be much appreciated thank you!!