This is just a quick note: the puzzles that I’ve been working on with Krazydad–Ripple Effects, as made not-very-famous by Nikoli–went live this evening! You can even solve them online, no need for a printer. The online version can be found here, and if you’re the sort that would rather print them out and solve them the old fashioned way, the PDFs are here. I will definitely be doing a Phil’s Puzzle Primer on them soon, so stay tuned, but there are instructions in both places that will help you get started. Enjoy! And you may even see more collaboration the two of us in the future. We’re currently discussing a new puzzle type of my own devising. We’ll see what happens.