[blml] IMP-scales for 2/3/4 boards

[Herman De Wael]

John Probst wrote:
> 
> A rough and ready is fo to the WB, divide the imps for 8, 16 and 24 board 
> matches by 2; then adjust the VPS to an 8 point scale by inspection. 

And to a 4/6/8 VP-scale? In 2-board matches, there are 4 points at 
stake for MP, so also 4 VP on the IMPs.

> Definitely you need a different scale for each of the three options. If you 
> want a rigorous solution it'll cost you a bed for the night and I'll come 
> over for a long weekend and test your TD's.   John
> 

The bed is not a problem - but why should we want to test TD's?

> This'll do (I've just done it on the fly from the white book for you.)
> 
> VPs  2Bds 3Bds 4Bds
> 4-4 0-1  0-2  0-2
> 5-3 2-4  3-7 3-7
> 6-2 5-7  8-11 8-12
> 7-1 8-11 12-16 13-19
> 8-0 12+ 17+  20+
> 

Would you recommend this 12,17,20 as the basis for the 4-0,6-0,8-0?
Then we have something like :

2bds: -11 to +11 is 23 scores for 3 different VPs : 7/8 each gives:
0-3 = 2-2, 4-11 = 3-1, 12+ = 4-0

3bds: -16 to +16 is 31 for 5 different VPs : 7/6 each gives
0-3 = 3-3, 4-10 = 4-2, 11-16 = 5-1, 17+ = 6-0

4bds: -19 to +19 is 39 for 7 different VPs : 7/5 each gives
0-3 = 4-4, 4-9 = 5-3, 10-14 = 6-2, 15-19 = 7-1, 20+ = 8-0



-- 
Herman DE WAEL
Antwerpen Belgium
http://www.hdw.be