I Have make the table game like Tic Tac Toe ("O" & "X" ) in 15 rows and 15 column , the rule to win is to make 5 by rows, column, or diagonal, but i want to mark the cell with conditional formatting when "O" already turn then it will be highlighted so "X" knows the last turn of "O" , and if already get the 5 cell to win it will be highlighted too. can you help me to make the formula in conditional formatting... thank's for the clue and guidance please...
Highlight Cell When Already input Text with Condional Formatting