Author: Will Singleton
Date: 17:44:15 09/15/03
Go up one level in this thread
On September 15, 2003 at 13:25:14, Andrew Williams wrote: >On September 15, 2003 at 12:40:32, Will Singleton wrote: >>On September 15, 2003 at 10:05:31, Andrew Williams wrote: >> >>>Here's a game that was played last night on ICC. I particularly liked this game >>>because PM never once showed a negative score, despite being 2 pawns down for >>>some moves: >> >>Hmmm.. that's a bit like saying you liked the tornado because you escaped alive. > >I liked the game because despite being two pawns down, PM never considered its >position to be dubious. I don't think its position was ever dubious, despite the >material deficit. I like games like that. I've seen lots and lots of cases where >PM has given up pawns for an attack that dissipates and is followed by a bad >loss. This wasn't one of those, which is why I liked it. > >> That, imho, was a butt-ugly game. It highlights both the tactical and > >Nope. For butt-ugly, try the 149 move draw between Amateur and PM which preceded >the game I posted. I've not looked at it in detail, but the dead-drawn ending is >pretty horrible, the more so if you look at PM's logs; it sensibly offers draws >(which Amateur declined) several times but then suddenly thinks that it is more >than 0.20 pawn ahead and so stops offering draws. Ugh. > > >>positional shortcomings of both programs; other than that, it was great. Thanks >>for posting! (just kidding, Andrew.) >> >>A couple positions. In the first, Amateur misses probably a forced draw (Rf8) >>due to overestimating its position, plus lack of sufficient depth. (PM would >>also play g5 here, if the roles were reversed, btw. Just so you know. :)) > >I think the idea is to not get into a position like this :-) > >>After this, PM sort of stumbles toward victory. >> >>[D]2rNk1r1/3Rp3/1p4pp/p1q1p3/P1P2n2/1P3Q2/1K5P/3R4 b - - 0 36 >> >> >>In another highlight, PM misses the winning Rxe7+, playing Qh7, which prolongs >>the agony for awhile. >> >>[D]2rNk3/3Rp3/1p3r1p/p3pQp1/P1P2n2/1P6/5q1P/K2R4 w - - 0 41 > >Well, Qh7 is winning too of course, but you're right about Rxe7, which is far >quicker and also far more aesthetically pleasing. It takes PM 1m 35s on my >Athlon 1200 to switch to and stick with Rxe7. > Must be an eval thing. Amateur plays Rxe7 in 0 secs. btw, my tone in this thread was meant to be ironic, not derogatory. (I'm sure you know that, just saying so for the record.) PM is an excellent engine, and I expect a very tough fight every game. There are countless games which are more representative of PM's attributes, imho. Hence the irony, that you should pick this one to post. Will
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