Zengaku Fun

AgileBoy, bless his sidekick heart, has crafted up a very nice website that generates a new Zengaku puzzle (like Sodoku, but slightly different) for you every day, which you can fill in right there on the screen! It has the added bonus of a verification feature, cell-by-cell, which you can use to ensure that you're on the right path.

I just filled today's out (took me close to an hour, I think, although I wasn't timing myself) and only verified each answer once I believed there was only one possible value for that cell (and each time, I was correct). I really appreciated the ability to fill in my answers without having to print anything off, and that I could verify each answer that I believed to be right (rather than worrying that I might be building upon a bad premise, as has happened to me in the past). It made for a very fun experience, and I encourage you to check it out if you like that sort of thing.