A strange little side quest
One reason puzzles keeps producing good game ideas around Pyramid Mahjong Solitaire Html5 is that its history is full of strange turns. The first crossword puzzle book appeared in 1924 in a cautious initial printing of 3,600 copies, complete with a free pencil. Another piece of context lands nicely beside it: Midway's Gun Fight from 1975 was the first arcade video game to use a microprocessor. The details change, but the appeal of learning a system and trying again is remarkably persistent.