WPF Sudoku / Puzzle Grand Prix 2023.

The World Puzzle Federation is happy to invite you to the 11th WPF online Sudoku event and the 10th WPF online puzzle event.

All the logical puzzles and Sudoku fans can take part and compare their results with the world's top players without leaving the comfort of their home.

You can expect first class puzzles prepared by the top puzzle authors from all over the world. Most of the authors contributing to the GP have also prepared puzzles for the past World Puzzle / Sudoku championships. The puzzles in the Grand Prix will be designed for all the players with different solving skills, for beginners as well as for the world's best players.

The quality of these tournaments is assured by the appointed Directors Responsible for the right selection of puzzles, testing and judging. The WPF GP Directors are Nikola Zivanovic (SRB) for Sudoku GP and Wei-Hwa Huang (USA) for Puzzle GP.

There will be eight rounds each in the Sudoku tournament and the Puzzle tournament. Only the top six results for each solver will be included in their final WPF Grand Prix ranking.
The format of the tournament will be paper-solving with transcription of solutions and Each round will be open from Friday to Monday.
The length of each round will be 90 minutes. 

More details are available on the GP website, linked to above. 

Schedule and the hosting Countries:

Sudoku GP 2023
1st round - 13.1. - 17.1. - India
2nd round - 10.2. - 13.2. - Thailand
3rd round - 10.3. - 13.3. - Croatia
4th round - 14.4. - 17.4. - United Kingdom
5th round - 12.5. - 15.5. - Japan
6th round - 9.6. - 12.6. - Ukraine
7th round - 7.7. - 10.7. - Italy
8th round - 4.8. - 7.8. - Serbia

Puzzle GP 2023
1st round - 27.1. - 30.1.- France
2nd round - 24.2. - 27.2. - Turkey
3rd round - 24.3. - 27.3. - Czech Republic
4th round - 28.4. - 3.5. - Switzerland
5th round - 26.5. - 29.5. - Indonesia
6th round - 23.6. - 26.6. - Slovakia
7th round - 21.7. - 24.7. - Poland
8th round - 18.8. - 21.8. - India


WPF Rating
In various sports exist some kind of ranking. One example is in tennis with the ATP world ranking, another one in chess with the FIDE world ranking using the Elo rating system. We drafted a first version of a rating system for puzzle solvers. How the rating is computed, can be found at: WPF_Ratings_Synthesis.pdf

Furthermore we used the results of the GP 2021/2022 and the WSPC 2022 to get the current ratings of almost 900 solvers.
Current WPF ratings: Sudoku Puzzle

All rounds of the WPF Sudoku/Puzzle GP 2023 will be taken into account, as well as potentially other events. Updated ratings and rankings will be released on a regular basis.

Soon we will upload a similar rating for puzzles as well.

Any feedback, questions or ideas are warmly welcome either by mail or directly on our Discord server.