The record for being the youngest kid to solve 6 x 6 Sudoku puzzles continuously and recite the squares of the first 100 natural numbers was set by Mohammed Aahil Faisal Mubarak (born on January 26, 2014) of Doha, Qatar. He rattled off, by- heart, squares of numbers from 1-100 in 2 minutes and 35 seconds; thereafter he solved three Sudoku 6 x 6 puzzles in 9 minutes and 40 seconds at the young age of 6 years and 12 days, as confirmed on February 7, 2020.