Russell Sherwood Sunday, September 18, 2022
An explanation of the Tie-breaks in the Silli system.
There is a more detailed explanation on ICCF.com but this is more related to the internal working of the pairing formula.
In simple terms in the Silli system you get a set of opponents from determined by a formula. An analogy I find useful here is to imagine a massive round clock – in this case with the numbers 1-25. Each number of the clock will have a predefined set of opponents. This set of opponents is defined by a formula. Which number on the clock you get determines the set of opponents and the formula tends to balance the quality of opposition.
The Tie breaks are different on a Silli Event
- Score – the sum of your results
- Buchholz cut 2 - – This is the sum of the scores of your opponents, disregarding the lowest two.
- Buchholz cut 1- This is the sum of the scores of your opponents, disregarding the lowest one.
- Buchholz – This is the sum of the scores of your opponents
- Buchholz 2nd stage – This is the sum of each of your opponent’s Buchholz score multiplied by your result
- Wins – The number of Wins you have
Lets consider this for a moment…..
The better your results (Win, Lose, Draw) the higher up the table you will be . If these are tied then the number of wins, the quality of opposition, their results, and your results against them will be taken into account.
So as an example: Cross Table (iccf.com)
If we look at the 2nd place Email Klaus
Score | BC2 | BC1 | B | B2S |
10.5 | 58 | 59 | 59 | 939 |
The BC Score is the sum of opponents. For the BC1 we remove the lowest score (zero in the case, so it’s the same result) for the BC2 we removed the next lowest scoring opponent (a score) of one, reducing our the BC2 to 58.
The BC-2nd Stage is the sum of the opponents BC scores.
I hope this helps!
Good luck in the event.
CorrespondenceChessICCFWCCF