Fatal error: Uncaught Error: Call to undefined function split() in /home/yumaz3/public_html/YumAZone_head.php:37 Stack trace: #0 /home/yumaz3/public_html/sudoku.php(17): include() #1 {main} thrown in /home/yumaz3/public_html/YumAZone_head.php on line 37