Mysteries
Legend
The following formatting conventions will be used in the text of mysteries:
- parts of a hand will be shown with the "lock" sign,
precedes concealed tiles, 
precedes melded tiles - MCR fan names are shown with a "firebrick" colored text, for instance, All Chows
- tile as an object of consideration is shown with "blue" colored text, for instance, "tile A"
- wherever is possible, a hand will be shown in one line
The list of contest mysteries
Mystery #1. Three-sided Wait (22.05.2021 - 28.05.2021) TaskSolution
Mystery #2. Missed Opportunity (29.05.2021 - 04.06.2021) TaskSolution
Mystery #3. Fan Excess Points (05.06.2021 - 11.06.2021) TaskSolution
Mystery #4. Matryoshka Dolls (12.06.2021 - 18.06.2021) TaskSolution
Mystery #5. Time for a Puff (19.06.2021 - 25.06.2021) TaskSolution
Mystery #6. Mirror Wait (26.06.2021 - 02.07.2021) TaskSolution
Mystery #7. Dangerous Tiles (03.07.2021 - 09.07.2021) TaskSolution
Mystery #8. The boomerang (10.07.2021 - 16.07.2021) TaskSolution