Miyuki's Sudokus and Solving Techniques

The incredible, indefatigable Miyuki Misawa created a few killer sudokus with possible solving methods! Which is helpful to compare/contrast techniques. Plus, at the end of the page, a horrifying one (pictured), with a large area of missing cages, and which I haven't managed to solve yet even though she gives you some help. And in the solutions section, there is a helpful chart listing all possible sums that I use practically everyday.

By the way, Miyuki is the one who did all the samunamupures for the Times' Killer Sudoku Book.

And speaking of the Times, they have more solving tips.