The record for being the fastest to solve a single 4×4 Sudoku puzzle was set by J. Saashini (born on September 13, 2019) of Vellore, Tamil Nadu. She solved a single 4×4 Sudoku puzzle (in a textbook) in 31.37 seconds, at the age of 6 years, 9 months and 4 days, as confirmed on June 17, 2026.
