WPF Sudoku GP 2018: Round 4 is over

Dear Players,

Sudoku GP Round 4 has ended. You can see the official results here: //gp.worldpuzzle.org/content/official-results-wpf-gp-sudoku-4-3
Congratulations to the winner of the round, Tantan Dai of China!

For cumulative Sudoku GP results, please check here: //gp.worldpuzzle.org/content/wpf-gp-sudoku-results-2018

To revisit past rounds, use the following links:
Round 1: //gp.worldpuzzle.org/content/wpf-sudoku-gp1-3
Round 2: //gp.worldpuzzle.org/content/wpf-sudoku-gp2-3
Round 3: //gp.worldpuzzle.org/content/wpf-sudoku-gp3-3

The next round is scheduled to take place from 18th May to 21st May.