"I have observed all of Beato's games. ...I also watched Lambdadelta's game and Battler's game with great interest. ...I believe I have formed an answer for all the riddles in my own way. ......The culprit. The motive. The individual tricks. ...I'm not yet clear about the very last part of the epitaph's riddle, but I have enough of a theory that if I actually went to Rokkenjima and investigated, I should be able to resolve that part as well."