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Posted by alberlie nsa-hitachi.com 2/28/2006 07:14:32 Play online chess	Subject: How to use Fritz Message: Hi, I would like to let Fritz analyze a certain position. So, I let him chew on it and make him give me the three highest rated variations. Let's assume, I did that for about 30min, thus getting a relatively reliable result. Now, I want him to look at the three hightest rated variations _after_ those primary three choices. Is there a way to tell Fritz to explicitely disregard all variations starting with 3. Nc3; Nd2 and 3. Be3? That's something I wondered on a number of other occasions as well - imagine a closed middle game position where Fritz stubbornly insists on moving Rab8 Rba8 etc. Is there a way to make him think of something else? greets, AA
Posted by cairo nsa-hitachi.com 2/28/2006 09:06:35 Play online chess	I Message: understand your question, but I'll suggest you use your chess-intuition, as you said yourself the program, is stubbornly insist on moving a certain move, you as a human know better :-)) However if you don't trust you own skills, perhaps you can create the desired position and analyse from there, but always use your own intuition and common sense for the game. Good chess ahead! Best wishes Cairo
Posted by wschmidt nsa-hitachi.com 2/28/2006 12:32:53 Play online chess	Alberlie, Message: It isn't clear to me why you don't just have Fritz display 6 sets of variations instead of 3 and then paste all 6 to the game. But if there's a twist here I don't understand, here's my suggestion. I don't of a way to tell Fritz to ignore a possible move as it is doing its analysis. However, you can accomplish the same thing by doing the following: Instead of having Fritz display just the first 3 best variations, have it display the first 6. Then, when you've let it run as long as you want, paste all the variations to the game. Then manually delete the first 3. Then run the analysis for the remaining 3 (variations 4-6) individually for the desired length of time. Again, if you're running Fritz for half an hour on six variations, I think that if you just paste those six into the game and look at the last three you'll have a pretty good analysis. I don't know if you'd gain that much more by doing those extra steps. Again, maybe I've missed a nuance in what you're trying to do though. ws
Posted by alberlie nsa-hitachi.com 2/28/2006 13:02:31 Play online chess	Message: well, part of it is probably purely "academic" interest - if I can "control" something more than I do already, I'd like to know about it ;o) But there actually is a somewhat more relevant point to it: Fritz doesn't distribute it's calculation time evenly but based on the strenght of the variations. Obviously it's highly unlikely that sacing the queen on move two is going to create positional benefits that will justify the material loss in the long term. Therefore, candidate moves involving a queen sac are given very little calculation time (but they are given some, nonetheless). Therefore, in a position where there are a wide number of plausible moves, I would like to be able to cut down on the number of variations, thus making computing power available for the next candidate moves. But I guess it _is_ of somewhat "academical" interest...
Posted by wschmidt nsa-hitachi.com 2/28/2006 13:09:38 Play online chess	Ah, I see.... Message: I think the multi-step manual version is the way to go then. ws
Posted by mattdw nsa-hitachi.com 2/28/2006 13:48:09 Play online chess	Message: While we are on the subject of fritz - is it actually possible to delete games in the database? Nothing happens when I try to delete them in mine so I have duplicates of every game I have played with and without analysis - and they aren't sorted chronologically...grr.
Posted by thunker nsa-hitachi.com 2/28/2006 14:07:45 Play online chess	mattdw Message: Mark each game you want to delete via the "edit"-"delete" option, and then go to "tools" and select "database" -> "remove deleted games" to permanently remove them from the database.
Posted by thunker nsa-hitachi.com 2/28/2006 14:09:02 Play online chess	Just a note Message: The more lines, or variations, you select for Fritz to analyze, the slower it will run.
Posted by alberlie nsa-hitachi.com 2/28/2006 14:35:41 Play online chess	thunker... Message: that is exactly the reason why I would like to specify exactly which lines it should analyze. And a bit more specific than "the first six choices" or so. But apparently, this seems impossible. Maybe some other engine can do this?
Posted by mattdw nsa-hitachi.com 2/28/2006 14:57:43 Play online chess	Message: Thanks for the suggestion Thunker, but I couldn't get it to work. I'm running Fritz 9 but I haven't updated it yet though as it wont let me connect to the server due to firewalls.
Posted by wschmidt nsa-hitachi.com 2/28/2006 15:13:16 Play online chess	a clarification question.... Message: Thunker, when you say "The more lines, or variations, you select for Fritz to analyze, the slower it will run" are you saying that if I click on the "+" sign and increase the number of analysis lines displayed when Fritz is looking at a position, it will run slower? I've always thought that was simply a question of how much of Fritz's analysis was displayed on the screen since the engine has to rank its choices internally anyway. If that is not the case, I'll change my approach, because I often have several lines displayed just out of curiosity. ws
Posted by alberlie nsa-hitachi.com 2/28/2006 15:16:41 Play online chess	Message: It doesn't matter as long as you only have three or so displayed - but if you increase it to more, say six :o)) or so, it slows it down.
Posted by thunker nsa-hitachi.com 2/28/2006 15:42:13 Play online chess	wschmidt Message: I used to think it was fixed too until my teacher told me otherwise. I did a little test and going from 2 to 3 even slows it down a bit. I rarely use more than 2 if I want to do a deep analysis of a specific position in a past game. Of course, for quickie stuff more lines don't hurt a whole lot.
Posted by thunker nsa-hitachi.com 2/28/2006 15:44:22 Play online chess	alberlie Message: I have Shredder also but I think most all the ones that ChessBase has bought out pretty much run under the "Fritz" interface - only the engine itself is different. So I doubt any of the "ChessBase" backed ones won't do what you're wanting.... Don't know about any others...
Posted by dysfl nsa-hitachi.com 2/28/2006 15:52:04 Play online chess	My method Message: For mattdw's question, you can specify if you want to replace the existing game with the anlalyzed one or create a new one. I usually select replace. The exact field name might not be 'replace', but you will have no trouble to find it. Also, while you're reviewing the Fritz-commented game, you can add your own comments or delete unnessary lines, then 'ctrl-R' will replace (update) it. For Wschimidt's question, I think if you ask more variations by pressing '+', it will run slower and give you more deeper analysis on those top x variations. Try it yourself. I change the number of variations when I liked a specific variation but it was not in the top 5 after, say level 13. I press '+' several times and wait for the completion of level 13, sometimes it makes to the top 5. However, it should be noted that the numeric evaluation varies a little in each run.
Chess news: Robot chess opponent -- Hopefully Dennis who is playing with a a robotic arm as his chess opponent has not input the necessary code to have the arm reach over and choke the life out of him should he win the chess match. The Lynxmotion AL5A robotic arm is, after all, full well capable of plucking each chess piece and moving it to the next space. This is made possible thanks to a Python script Dennis himself created to process the moves and decide on the next move. A webcam is used to capture the location of the desired pieces on the chess board in order to help it in its task. ... Final two rounds produce an exciting climax to the German chess league -- Russia's national chess league may be the strongest in the world but Germany's Bundesliga runs it close and its media profile is far higher. The final two rounds last weekend began with Baden-Baden and Solingen on 24 points from 13 matches, Werder Bremen 23 and Mulheim 20. Baden-Baden is the cash-rich team and even boasts the world chess champion, Vishy Anand, and world No1, Magnus Carlsen in its squad, though the Indian has played only two games and the Norwegian none. But the active regulars are so strong that Michael Adams, the England No1, plays only on a mid-board in the eight-man team. Werder Bremen, which has links with the football club, fields ... Previewing the world chess championship match -- The world chess championship match between champion Viswanathan Anand of India and Veselin Topalov of Bulgaria begins Friday in Sofia, Bulgaria. The schedule calls for a rest day after every two days of play except that there will be an additional rest day May 9, between the 11th and 12th games. If the score reaches 6-6, the players will break the tie with a series of faster games May 12. Topalov, ranked second in the world at 2805, deserves to be considered a slight favorite over Anand, fourth at 2787. However, one can imagine almost any outcome. Anand has more experience in chess matches and he plays more soundly, with better judgment, but Topalov is more ...