Kenken

Did I mention that about a week ago the Boston Globe started carrying a new puzzle, Kenken. It’s a number thing that’s like Sudoku in that one important clue is that no digit may be repeated in any row or column, but it works with arithmetic as well as logic. It comes in different sizes on different days; I find the four-by-four puzzles, which are printed on Monday and Tuesday, pretty easy. The six-by-six are a lot harder, but easier (for me) than a medium sudoku. At this point I like it better than sudoku. If your newspaper carries it, give it a try — on a day when they have a four-by-four, to get started. Or try the online one.