Electronic Gadgets and Gear

There are a lot of game widgets for Google. The problem is, most suck. Wei Hwa makes some insanely difficult brain teasers, and there are a lot of different ones to choose from. Right now, I'm trying to solve some devious Diagonal Sudoku puzzles he's got. I thought I was pretty good at Sudoku, and it's very rare that I find one I can't solve. On Wei Hwa's puzzles, I ran into several. :D