Name Hour Each row column and square can contain each number 1 9 exactly once The squares that contain letters match with the questions below the puzzle The answers are the number that fills in the square F L 6 2 O I 5 4 7 1 2 2 C 7 3 5 6 A Tenths digit of IT D The most common number among the first million digits of TT G The first 10 digits of IT add up to 9 J Albert Einstein was born on March 14 187 3 9 4 J 7 1 5 9 G 6 2 3 B Ones digit of IT a 3 K The symbol to represent the number was introduced in 1 06 5 A 4 7 9 LO E E is the 1 th letter in the Greek alphabet 8 H Ludolph van Ceulen lived from 1540 1610 He spent most of his life calculating the first 6 digits of pi K 1 8 H 2 5 9 D 8 B 7 C Hundredths digit of TT F In 1995 Hiroyoki Gutu memorized 42 95 places of pi 1 According to ancient Egyptians 3 14 the value of pi was L Pi is approximately equal to the fraction 2017 Wilcox s Way 22