PRACTICE PUZZLES, SOLVING TIPS AND LINKS FOR IPC 2013
Update2:Fixed the typo in Pentomino Kakuro. New PDF uploaded. No other change.
Update1:There is an erratum published on the IPC site that says the 2×2 restriction applies to Happy Dots too. Since the practice puzzle in the PDF still gives a nice practice for placing the dots and forming regions, and only uses 2×2 regions minimally, it stays the same in the PDF. We’re sorry for the inconvenience. Right, took a while, but we’re finally there. If you’re still not aware, the Indian Puzzle Championship will be held on 7th July. Here are our (me and Prasanna) best efforts, with the main goal being to try to help the newer participants.