Others say...

"Sor far so very good"
Why 4 stars instead of 5? Because as far as graphics go, the program doesn't compete with Chessmaster with its abundance of chessboards and pieces options (admittedly, many of them are so outrageous and impractical that they are ultimately useless). It does, however, have a few 3-D options that look somewhat minimalist but quite decent, with short, very distinct, and rather attractive pieces that never eclipse each other (especially when the board is angled to show much of the board in bird's eye view). I suspect that any serious player will be satisfied with this modest palette of graphical options, which offer a couple of 3-D boards and pieces that are perfectly readable or identifiable and permit easy playing (on a purely practical level).

As for the Windows interface (apparently borrowed from Fritz 8), it is in my perception simple and straightforward. All in all, this program was not designed to dazzle you with visual bells and whistles; it was designed to impress the hell out of you with its artificial intelligence: the dominant Shredder 9 engine. The first thing I noticed that I found compellingly attractive was the way this engine played at lower difficulty levels (say, 1000). Unlike Chessmaster at this level, it doesn't produce a ridiculous and positively annoying blend of rational moves and insanely stupid and self-destructive ones; on the contrary, it produces rational moves throughout, though they may be shortsighted and modestly constructed, like the moves that a player with a 1000 rating would play.

In short, I am very happy I made the switch from Chessmaster 9000 to Shredder 9, and I recommend this product to anyone who is more interested in playing chess than in being visually entertained by futile gimmicks.

(...)

"A strong improvement on Shredder 8"
Probably the best computer engine playing other computer engines. Shredder has remarkably imaginative play. Some of the stuff it comes with is truly amazing. The reason for the four star rating is that you no longer have the option of either playing on a single processor or a dual or quad processor computer like you had with Shredder 8. There is now a Deep Shredder 9 which I can only assume Steven Meyer-Kahlen, the creator of Shredder, wanted to make some more money (which I don't mind, he's earned it with the incredible engine he has created and he's a very classy guy. I've talked to him a few times via email and he is always generous in answering your questions) as his Fritz and Junior counterparts have Deep versions of their programs as well. I didn't get Shredder 9 on the CD. I downloaded a licensed version from the Shredder website which when you get it from the website you can download a monstrous opening book that Mr. Meyer-Kahlen provides for free if you want it along with the smaller book that initially comes with the program on CD or downloading the engine from the Shredder website. On top of that, I was a little disappointed with the margin of improvement that I saw with between Shredder 8 and 9. Shredder 9 currently is the highest rated computer chess program but I think the newest version of Fritz 8 (the Champions edition via Chessbase or Deluxe Edition via Viva Media) is right there with it as far as playing strength goes and in head to head engine matches that I have tested them with they are pretty much even on the computer I use and maybe even a slight edge to Fritz (!!) The improvement from the original release of Fritz 8 to the latest version is a monstrous quantum leap. VERY VERY STRONG. I am not aware of an updated version of Deep Fritz 8 but imagine if there was that it would be quite a beast on a multi-processor. Shredder in the endgame is the best hands-down. Not because of the tablebases but it just plays endgames very well. The playing style of Shredder is very aggressive. I don't have Junior and don't plan on getting it as I have talked to people who have the program and say that it is a major disappointment with the newest version. Picking the latest versions of either Fritz or Shredder, you really cannot go wrong and will be very pleased. I hope this helps.

"Shredder gets better - loves closed positions of all things!"
(...)World Computer Chess Champion
16.02.2004 It's the five-time World Computer Chess Champion. It comes with a huge database and opening book. It comes with dazzling new 3D boards. And it's the subject of this week's ChessBase Workshop. It's Shredder 8 and you can read all about it in Steve Lopez' latest column.

SHREDDER 8
previewed by Steve Lopez
People have been saying for years that the way to get a computer to play a strong chess game is to make it play "more like a human". Of course, this implies that everyone is going to agree on what exactly constitutes "playing like a human" (yeah, like that's ever going to be agreed upon). Chess software programmers figured out a long time ago that "brute force" (getting a program to try to see everything out to x number of moves) just wasn't going to cut it. So programmers began to build chess knowledge into their programs. State of the art chess programs today don't evaluate as many positions as their predecessors did, but they certainly "understand" more within that limited range and are able to choose stronger moves.
This is why programs like the phenominally popular Shredder are so successful against both humans and other computers. Shredder has won five major computer chess championships and has done exceedingly well in "human vs. computer" challenge matches. Does it play "like a human"? I get asked this all the time. I think nearly all current chess programs play like a human to some extent. Perhaps a better question would be, "How would you characterize Shredder's play?" I often use Chess Tiger as a means of comparison, since the two programs' styles of play are nearly completely antithetical to each other. I often compare Tiger to Mikhail Tal -- it sacrifices material (sometimes unsoundly) and likes to live on the tactical edge. I compare Shredder more to Tigran Petrosian; Shredder will certainly bust out with some tactical fireworks when the situation requires it, but its overall style of play is pretty positional and rock-solid. When Shredder gets a good position (and it usually does just that), it's very hard to crack it.

Shredder therefore surprises a lot of players, especially computer chess old-timers like myself who still remember the days when you could sometimes sucker a computer program into playing profoundly silly moves like bizarre pawn pushes. Those days are gone for the most part. Players who expect that kind of thing really get surprised by Shredder; as I said earlier, I find Shredder's play to be rock-solid and much more positional than most chess programs.

It's that combination of strength and positional acumen that makes Shredder so danged popular. Shredder fans will be excited to know that a new version, Shredder 8, has just been released. As with previous versions, you can tweak the engine six ways to Sunday.

I want to call your attention to two areas of this Engine Parameters display. First, note the pulldown menu near the bottom. This gives you five different "preset" styles of play for the engine to use. The default is "Intelligent", but you can try any or all of these settings to see how they affect Shredder's play.

The toggle that really struck me is near the top of the display: "Prefer open positions". Isn't that a given? It's been a truism for years in the computer chess world that computer programs always tend to prefer open positions. So why would there be a toggle for this in the Engine Parameters display -- and why would the default setting be the "off" position?

That, friends, is the single best illustration I can give you as to how different Shredder is from other chess engines. Most chess programs avoid closed positions like the plague. Shredder loves them. It's no wonder that many computer chess afficionados start to visibly salivate when they hear of a new Shredder release.

Of course, there are piles of other tweaks available to you in this display. Another one of major importance is the "threads" toggle. If you have a multi-processor computer you can set this value to the number of processors in your machine, and Shredder will use them when calculating moves. That's why there's no Deep Shredder -- the standard Shredder 8 program already supports the use of multiple processors.

You can have many hours of fun just playing around with the parameters display, but there's a lot more included with the Shredder 8 package. You also get a database of over a half-million chess games from the years 1749 through 2002. You can use these to look up openings, positions, players, you name it -- then just load a game and play through it right there on your computer screen. Shredder also has its own opening book, tuned to its unique style of play. The new Shredder 8 opening book contains more than two and a half million unique positions based on more than 520,000 actual chess games.

But there's more. Believe it or not, the first things I want to look at whenever I get a new ChessBase chess program are the new 3D boards. Shredder 8 has the photorealistic 3D "Spanish villa" board that highlighted the Fritz8 package. But there are also two new 3D boards included that are exclusive to Shredder 8.

But, of course, the main attraction of Shredder 8 is the chess engine itself. It's been the World Computer Champ multiple times and now you can match wits with what's arguably the strongest chess engine ever programmed. What more could you ask for?
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Frankie Kam's review? Go out and BUY this triple-brain wonder now. Oh by the way, here's how strong Shredder 7 was:

The Sixth Magistral de la Republica Argentina was won convincingly by the ChessBase program Shredder 7. It's 8.5/10 score was well above the GM norm and two points ahead of the pack of GMs and IMs chasing it. That's a 2752 performance rating! The human side of things was won by Andres Rodriguez of Uruguay. - As reported on www.chessbase.com