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Terminology: SON

Public forum discussion.

General

#1 · Hoang Vu

30 May 2003

I'a a new player and i don't know what SON mean is, someone tell me plz. Thanks!

#2 · Dvd Avins

30 May 2003

It's short for Sonnenborn-Berger, which is a tie-break system. If you finish with the same basic tournament socre as someone else, then for timebreaks you multiply the scores of all the people you beat by 2 (and for games other than hex, where ties are possible, you add the socres of everyone you tied multiplied by 1). The sum is listed hear as SON.

#3 · Nick Wedd

30 May 2003

This system is also known as SoDOS, for Sum of Defeated Opponents' Scores.

#4 · michael

30 May 2003

as for games on this server, it isn't possible to tie in amazons either.

#5 · David J Bush

30 May 2003

Nor is a tie in Go possible, with the komi set at 6.5

#6 · XanderN

31 May 2003

SON is for ties in a tournament, not in a game. Any game can have players tie in a tournament....

#7 · Dvd Avins

31 May 2003

We all (I presume) knew that, Xander. But in my earlier post I was disoriented and thought I was posting in the Hex forum. Since I was explaining the Sonnenborn-Berger system in details, I mentioned ties in a game. Since ties can't occur in Hex, I referred to the generic 'games other than Hex' where ties can occur. As others have noted, there are other games (including, BTW, Go 13x13 and Go 9x9, which have non-integral komi other than 6.5) which cannot have ties.

#8 · Tore S

2 Jun 2003

Tie's in Go.

It is true that a scored game cannot end in a tie, but a game of Go can still end in a tie with ethernal ko's.