CONTEST - Mahjong mysteries solving contest "Sherlock Holmes and Mahjong" starts with Dr. Watson, who is waiting for "Nine Gates" in the bamboo suit. He draws a "tile with a bamboo image" on it as last tile from the wall, and declares "Hu" (a win). To answer the questions of this mystery, you need to consider a typical mahjong game set, and also the "Green Book" (Appendix 1).

Question 1 (): How many  "tiles with Bamboo image" are in a typical mahjong set?

Question 2 (): Please, calculate the total change in points for Dr. Watson for each different "tile with Bamboo image" on it in the scenario as described.

Prizes generously provided by the publishers of Mahjong Collector Magazine, and by Holiday Mahjong Online.