on entering room 307 hed been struck by the way it resembled his own study , chaotic with objects that had corresponded to his candidates passing crazes , necessarily his own too : the three chess-sets , his old one , the pocket-set , the expensive rose-wood inlayed refused set ; the two volumes of schlechter and moch and the other books on the game hed bought ; the scores of chinese puzzles ; the spurned boxes of chocolates , pralines , nuts , etc .