Author: Sudoku52, from China, Hope your feedback, and enjoy it!
2021 Year Sudoku
Classic Sudoku rules apply,a set of letters in the "○” box is an extra area, including a set of unique numbers 1-9, and satisfies the following formula: {[A-(B×C)]×D+E}×[(F-G)×H-I]=2021
Real number operations first calculate the power (root), then multiply and divide, and finally add and subtract; If there are parentheses, count the ones inside the parentheses first, and the same level of operations are performed in order from left to right.
Solution code: The letters ABCDEFGHI represent the numbers in alphabetical order, and then the 6th column, a total of 18 numbers.
on 12. February 2021, 00:17 by cdwg2000
Happy Chinese New Year!