Author: Ed Schröder
Date: 20:57:55 08/02/98
Go up one level in this thread
>> Does anyone know how many times, in the Anand vs. Rebel 10 match, that >Rebel >>10 varied from the move that Rebel 9 would have made? I could check this >>myself, but i don't have the games, and i'm hoping someone already knows the >>answer to save me the time:). >> >>Shaun >I have this info: On a Pentium 233 MMX 10:00 fixed level Rebel 9 guessed >ALL of Rebel 10's moves with the exception of: >Game 8 (Rebel-Anand 10 40/2hrs.) >13. Ne5 (Rebel 9 prefers 0-0 ) >14. Qd3 (Rebel 9 prefers Nc4 ) Interesting you mention these 2 moves. 13. Ne5 is a logical consequence of 11. Bb5 and 12. Bxd7+ 14. Qd3! is the key-move to the surprising 15. Qf3! which started all the complication. I was very pleased with 14. Qd3 although I didn't understand the move at all at first sight. Let me explain (again) about anti-GM as there is too many confusion about the option. The 2 tournament games are good examples what anti-GM does. anti-GM is about the initiative. Without the initiative against players > 2600 better stay home -:) anti-GM has 4 settings: - OFF (normal positional play) - ACTIVE (anti-GM software active, but a bit careful) - STRONG (anti-GM software active, but now aggressive) - SMART (Rebel10 decides what to use (off, active or strong)) Now the setting against Anand was SMART which is also the standard setting in Rebel10. It means that Rebel10 during the game for every new move will decide what to use (off, active or strong). So in a complete game of say 40 moves Rebel may decide to use 30 moves with off, 5 moves with active and 5 moves using the strong option. After having seen over 100 auto232 games I think this value (40 = 30/5/5) is pretty accurate using anti-GM = smart. One of the bottom lines of anti-GM is that if Rebel already has a position that favors the program here is NO NEED to use anti-GM anymore (mission accomplished) and Rebel will play its normal positional style meaning that anti-GM = off is used. As an extra the ACTIVE and STRONG options can be set. This means that SMART is overruled and that you can play whole games with the anti-GM option. I can not recommend this for optimal play but it is surely fun to play with these options. Last point, anti-GM (using smart) in MOST CASES will affect the opening or early mid-game only! It's a logical outcome of its goals. Search for positions (set the rules) which favors Rebel. When you have reached your goal you then simply rely on the normal chess knowledge of the program. >And as I recall Rebel 9 deviated from Rebel 10's line of play in Game 7 >only 3 times. I'm not sure how the Anti-GM software helped, since Rebel9 and >Rebel 10 are nearly identical! See above. Next, if you are interested I can produce a statistic which shows the differences between Rebel9 and Rebel10 in moves, time and score based on about 500 positions. - Ed - >Hope this helps, >Dragos
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