Ex Cathedra has a nice little following of regular and occasional readers. We’re no Boing Boing, and that suits me right down to the ground. Things have stayed this way, all snug and cosy until a few weeks ago when a tiny breeze blew across our tranquility. I got a package of loot: three sudoku books by New York Times crossword puzzle editor Will Shortz. One of the Volume One (mostly easy) and two of the Volume Two (easy to hard).
Since I only mentioned sudoku in passing, and it’s Tim who wrote an actual article on sudoku (mostly), it’s a dirty trick for me to keep those books. I think one of them (the duplicate, of course) ought to be winging its way toward him shortly. If he doesn’t mind erasures, I’ll send the first volume as well.
What was I going to do with them? Was there some mistake? Well, if so, tough luck, publisher, you aren’t getting them back. But I was obviously expected to review them. OK. Let’s think about that.
Back when I reviewed a few books for the local newspaper, the deal was that you could keep the book in return for the review. So I’m not a complete stranger to loot. In fact, I was brazen enough to write the publisher of Art Siegelman’s phenomenal Maus when I’d been given volume 2, and offered to buy volume 1, but they sent it to me at no charge. I hope I did it justice — while being utterly certain that there is no way to do those books justice.
At my 3D site, the VRMLworks, I accidentally fell into a policy of not reviewing products that I hadn’t gotten the way pretty much anybody could have gotten them. For example, if a book or a program was a giveaway at a conference or if I was given a free copy of a program in return for being a very active beta tester, that was OK.
The idea was that I wanted to be the anti-Jerry Pournelle. You remember, his “user’s” column in Byte was filled with tales of company presidents coming over to his house to fix bugs and other perks that the average user was never going to get in a million years. I was a user, and I didn’t want to take advantage of such celebrity as I had — and yeah, in a tiny little pond, I was a tiny little celebrity for a short while. Talk about taking myself way too seriously!
And it probably helped that the books I’d received from their publishers for free, I’d also previously bought. So I had a paid-for copy of The Annotated VRML 2.0 Reference Manual at home and a freebie copy at work, and I could say that I thought it was the cat’s pajamas with a smile on my face. And I could say I thought half of Mark Pesce’s first book was indispensible and the other half was unfortunately padded with stuff that was going to be of nothing more than historical interest in a very short time — with an equally big smile. I’d paid for those books like everybody else.
Well, my 15 minutes is long past and now that I’m not being innundated by products to review, I realize that publishers get something of value for having somebody with a little bit of momentary fame review one of their products, even if it’s a bad review. God only knows what publishers get from having it reviewed in Ex Cathedra, but from now on, if a publisher is fool enough to send me a book, I’ll review it. Unless it falls so utterly outside my expertise or interests that I wouldn’t have anything to say about it. Let’s be sensible here. And perhaps I’ll start passing the overflow on to my co-bloggers. So publishers, send me your loot!
My co-bloggers don’t get these Sudoku books, though. I’m keeping them.
I have to confess my previous experience with Sudoku was visiting the Daily Sudoku site, printing off a copy of one of the puzzles, filling in a couple of numbers, and saying “Yeah, I could do that. That looks like fun,” and handing it to my wife who, after some grumbling, solved it. So I had a true beginner’s mind. And I read the instructions and followed along solving the example puzzle easily.
That sent me into the book and into puzzle number 1 with confidence, and sure enough, I whipped right through it. OK, sez I. Let’s turn to puzzle 90, the last of the “easy” puzzles. Here it is:
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Hokay! Evidently there’s some stuff between 1 and 90. And yes, it is an easy puzzle, in the sense that no guesswork is required. And there are puzzles that have even fewer starting numbers filled in. But this one sure gives a good workout to the two rules I condensed the puzzle’s rule set into: you can’t have more than one, and you gotta have one.
What else to say? It’s pretty clear the puzzles increase in difficulty (OK, I’m only certain 90’s a good deal harder than 1, but I don’t expect fraud here), so if you want to get good at Sudoku, running through these puzzles looks like a good way to do it. And the easy easy one I did was just like popcorn, so I want to stop typing this review and get back to do some puzzles. In fact, the hard one was kind of salty and buttery too.
And the puzzles are printed plenty big enough, good for those of us who type so much our handwriting has regressed back to 3rd grade. My only complaint is that the pulp paper they’re printed on makes it hard to completely obliterate what’s there with my regular white retractable eraser (see, Tim, I’m thinking of you). Not that it’s cheezy: it’s perfectly clean, high quality pulp, nicely opaque, just like a crossword puzzle book.
Value for money? US$6.95 for 100 graded difficulty puzzles: that’s a bargain. You’d have to be a bigger tightwad than I am to copy the pages to share it with other folks in your family. And while the instructions seem kind of terse, it’s all there, and you learn by doing.
So a thumb up here for each of these books. Better take your time doing them. There’s only 5,472,730,538 essentially different Sudoku puzzles, so once you’ve worked your way through volume fifty million and something, that’s it.