Author: Uri Blass
Date: 08:45:50 06/27/01
Go up one level in this thread
On June 27, 2001 at 10:44:51, Robert Hyatt wrote: >On June 27, 2001 at 02:07:10, Uri Blass wrote: > >>On June 27, 2001 at 00:26:28, Robert Hyatt wrote: >> >>>On June 26, 2001 at 03:58:02, Uri Blass wrote: >>> >>>>On June 26, 2001 at 03:34:44, Adolfo Bormida wrote: >>>> >>>>>Win 3 draw 1 Croos Table >>>>> >>>>> 1 2 3 4 5 6 7 8 9 0 1 2 >>>>> >>>>> 1 Slipak,Sergio 2448 * 1 1 1 3.0/0 0.00 >>>>> 2 Matsuura,Everaldo 2467 1 * 1 0 2.0/0 0.00 >>>>> 3 Limp,Eduardo 2465 1 * 1 1 3.0/0 0.00 >>>>> 4 Rodriguez,Andrés 2500 * 3 1 0 4.0/0 0.00 >>>>> 5 Andres,Miguel 2382 * 1 1 1 3.0/0 0.00 >>>>> 6 Hoffman,Alejandro 2453 * 1 1 1 3.0/0 0.00 >>>>> 7 Dorin,Mauricio 2410 1 * 1 0 2.0/0 0.00 >>>>> 8 Valerga,Diego 2468 1 1 1 * 3.0/0 0.00 >>>>> 9 Scarella,Enrique 2361 0 1 1 * 2.0/0 0.00 >>>>> 10 Ricardi,Pablo 2554 1 1 1 * 3.0/0 0.00 >>>>> 11 Panno,Oscar 2471 1 1 3 * 5.0/0 0.00 >>>>> 12 COMP Chess Tiger 2632* 1 3 3 * 7.0/0 0.00 >>>>> >>>>>Standard crosstable >>>>> >>>>>IV Magistral República Argentina 2001 >>>>> >>>>> 1 2 3 4 5 6 7 8 9 0 1 2 >>>>> 1 COMP Chess Tiger 2632 +102 * ½ 1 1 2.5/3 >>>>> 2 Panno,Oscar 2471 +131 * ½ 1 ½ 2.0/3 >>>>> 3 Limp,Eduardo 2465 +26 ½ * ½ ½ 1.5/3 2.50 >>>>> 4 Slipak,Sergio 2448 +73 ½ ½ * ½ 1.5/3 2.50 >>>>> 5 Ricardi,Pablo 2554 -105 ½ * ½ ½ 1.5/3 2.25 >>>>> 6 Valerga,Diego 2468 -53 * ½ ½ ½ 1.5/3 2.00 >>>>> 7 Andres,Miguel 2382 +79 ½ ½ * ½ 1.5/3 2.00 >>>>> 8 Rodriguez,Andrés 2500 -38 0 ½ * 1 1.5/3 1.75 >>>>> 9 Hoffman,Alejandro 2453 -40 ½ * ½ ½ 1.5/3 1.75 >>>>> 10 Matsuura,Everaldo 2467 -75 0 ½ ½ * 1.0/3 1.75 >>>>> 11 Dorin,Mauricio 2410 -17 0 ½ ½ * 1.0/3 1.50 >>>>> 12 Scarella,Enrique 2361 -41 ½ 0 ½ * 1.0/3 1.50 >>>>> >>>>> Promedio elo: 2467 <=> Categoría: 9 >>>>> gm = 7.00 m = 5.0 (las partidas con ChessTiger no están incluídas) >>>>> * corre en PIII 866 Mhz, 256 MbRAM. SSDF Rating al 13 de Junio del 2001 >>>> >>>>I do not understand the big number of draws with the 3 points for a win system. >>>>I expected the 3 points for a win system to encourage players to play for a win >>>>but I do not see more wins than in normal tournaments and it seems that the >>>>number of draws is even higher than in a normal tournament with 1 point for a >>>>win and 1/2 point for a draw. >>>> >>>>Uri >>> >>> >>>This may be a flawed system. The thinking is "I get 3 for a win, 1 for a draw, >>>I will go for the win if at all practical." But it might end up "I get 1 for >>>a draw, my opponent gets 3 for a win, so I will try for the draw rather than >>>take a chance on giving him 3." >>> >>>IE it might actually increase the number of draws, not decrease it. >> >>simple logic say that if I have to choose between a forced draw >>and between probability of 30% to win and 40% to lose I will choose the 30% to >>win if there is 3 points for draw. >> >>If I get 3 wins 4 losses and 3 draws I get 3*3+4*1=13 points >> >>If my opponent win against me and get 9 draws in the other games he is going to >>get only 3+9=12 points. >> >>Uri > > >The math still works as I gave it however. If you expect to win 30%, then >3 of 10 times you will get +3 points. If you expect to lose 40%, then 4 of >10 times your opponent gets +3. No matter how you look at it, he is going to >win the tournament. I see that I did a mistake in my math and +1 =9 gives exactly the same points as +3 =3 -4 (my mistake is that I calculated +3 =3 -4 as 3*3+4 and not 3*3+3 but I still think that +3 =3 -4 is better than 10 draws or +1 =8 -1 by the place and not only by points. +3 =3 -4 result mean that you get 12 points and the opponents get +4 =3 -3 against you that means 15 points against you and the average number of points thaey get against you is 1.5 +1=8 -1 means that you get 11 points and the opponents get also 11 points against you so the average number of points that they get against you is 1.1 +3 =3 -4 improves your result relative to +1 =8 -1 by 1 point when the opponents get average of 0.4 points. It means that you get more improvement relative to your opponents so if you have to choose between one strategy that gives you 10% chances to win and 10% chances to lose and another strategy that gives you 30% chances to win and 40% chances to lose then it is clear that the second strategy is better from ranking's point of view. Uri
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