Daily Sudoku
23 Nov: easy , medium , tough 22 Nov: easy , medium , tough 21 Nov: easy , medium , tough 20 Nov: easy , medium , tough 19 Nov: easy , medium , tough 18 Nov: easy , medium , tough
easy Can be solved using single techniques: there is only one candidate in a cell, or there is only one cell in a row/column/block where a number can be placed;
medium You need more advanced techniques, such as combining the positions in different rows/blocks or columns/blocks, or pairs of numbers that can only be placed in two cells (naked/hidden pairs );
tough Can't be solved with these techniques only.
Sudoku Links
Import Sudoku
Below you can paste a Sudoku as text. Use any character for the open cells, except the digits 1-9, spaces, '+', '-', '|', and '>'. The rows in the Sudoku may, but don't have to be on separate lines.