The Instructions The November Extra puzzle is also the Tie-break Puzzle for the 2020 3D Crosswords World Championship. To qualify for the World Championship, solvers must have successfully solved at least 12 of the 2020 puzzles (which may include the August Extra). This Tie-break puzzle must be correctly solved in order to win the World… Read more Results of the 2020 3D Crosswords World Championship clue writing competition