Okay, so solitaire isn't originally a Japanese game. But it does have something of a Zen-like simplicity to it and this particular version is nice. So why not give it a go!
Start by clicking the New Game button.
You have to clear the board by jumping one peg over another into an empty spot. This removes the peg you jumped over from the board. Just click on a peg and if there's a valid -- horizontal or vertical -- move available, the peg will "jump". If there's more then one valid move available, you'll have to choose a destination. To win you have to end up with only one peg. The best solution has this peg in the center.
Version 1.2, July 1998, created by Erik Gos (E-mail: Erik.Gos@hiva.kuleuven.ac.be)