lichess.org
Donate

Swiss tournaments are on Lichess

@odoaker2015 #180 There you go again, it really doesn't help shouting like that.
#171 Ich verstehe Deutsch, aber da dies ein Englisches Forum ist, werde ich auf Englisch weitermachen. Ich habe Ihre Nachricht gelesen.
Unless people drop out - which normally isn't the case in an OTB tournament - up untill round n-2 it will be possible to create pairings. It may not be in the 𝑠𝑝𝑖𝑟𝑖𝑡 of Swiss tournaments to play 10 rounds with 16 players, but if the goal is to play against a lot of different opponents, it 𝑖𝑠 possible and people will be happy. It may be a language barrier, but I cannot understand why you get so defensive about it. Just give it a go, and soon enough one can see what is enjoyable or less enjoyable.
@Molurus
If you could use the Swiss system like a round robin, why is there a Swiss system at all? Explain that to me! And explain in your own words how the swiss system work!
There is a specific order of pairings and color allocation in a Round Robin that a Swiss would not do correctly. That's why using a Swiss as a Round Robin is bad. @odoaker2015

Also, this talk of using a pairing program to prove it is also not the way to go. Ultimately the Tournament Director is responsible running the pairings and can make manual changes if the pairing logic has issues. Sometimes, human intervention and application of the rules overrides brute programming. Maybe they need to train AlphaZero to handle swiss pairings and teach us all, LOL.
@TacticalBert Accepted, but if you have read my post to you, you would have noticed that I have nothing here against the introduction of the Swiss system, quite the contrary. But I don't like people twisting words in my mouth. And neither you nor @Molurus or anyone else has really responded to my illustrative arguments! And as I said in my post to you, I want to clear up misunderstandings about the Swiss system. That's it! And if people think that they can treat the Swiss system like round robin tournaments, it's just not okay! You can't treat a Swiss System tournament like a round robin tournament! Not in real life and also not online, if you really want to observe the two requirements! You can't do that and that's not how the Swiss system works! That's why the developers were against even introducing the Swiss system here in the first place! "Swiss tournaments were not designed for online chess" this is said here lichess.org/swiss
Thanks for introducing the Swiss System; this is great!

I know this is just in Beta, but I'd argue that Swiss eventually might not need to be restricted to teams. Yes it's a format that "... demand[s] punctuality, dedication and patience from players." On the other hand, the effect of people leaving mid-tournament (like not having enough players to pair, etc.) is mitigated by having a larger number of players at the start, something that will be easier to reach in open, publicly advertised tournaments. Of course, it's not a huge deal either way since people can always just make a team that is free to join. I can also see the value in not flooding Lichess tournament listing with a bunch of dud Swiss tournaments that never reach enough players to even start, especially since this is a shiny new feature right now.

On the other hand, if Round Robin does get implemented the leaderboard could get really messed up by players leaving mid-tournament and should probably be restricted to teams. To really be a fair tournament, it would probably mean not counting wins or losses against a player that withdrew after only playing half the field.
I have done a test how many rounds are possible in swiss system.
I have used Swisschess, entered a tournament with 10 players. As results I have chosen draw for all games.
In this constellation it is possible to play 5 rounds swiss with 10 participants. It is not possible to play a 6th round, Swisschess isn't able to calculate a 6th round. With other results than draw, this may differ.
But it is definitely not possible to play 9 rounds swiss with 10 participants.

This topic has been archived and can no longer be replied to.