Akagi

Akagi agrees to follow Yasuoka and Oogi to track down the murderer to play mahjong with him. The murderer is revealed to be Washizu Iwao, a decorated police officer who accumulated wealth through consulting and blackmail who has begun killing people in games of mahjong. On Washizu's mansion, Washizu introduces the "Washizu Mahjong", whose main restriction is that they will be playing with transparent tiles, where only one of the four of a kind in each tile is opaque. The three house rules are then introduced: they will not build walls as per normal rules but draw tiles from a hole in the center of the table, they will wear leather gloves so that they are unable to "feel" which tile they have drawn, and the dealer with initially draw one tile to determine the dora indicator and additional dora will be drawn when the need arises. In addition Washizu states that Akagi will be playing with 2000 cubic centimeters (ccs) of blood as his wager and Washizu will be playing with 20 million yen. (Source: Wikipedia)