Hnefatafl Internet Championship

User avatar
Hagbard
Posts: 624
Joined: Sat Mar 14, 2015 6:07 pm
Location: Copenhagen
Contact:

Re: Hnefatafl Internet Championship

Post by Hagbard » Sun Jun 27, 2021 3:08 pm

A combination of Round Robin tourn., Swiss tourn. (Monrad system) and balanced Double Elimination tourn. was tested using Fetlar and Tawlbwrdd and worked.

1. All players were ordered by their separate rating for the variant used.

2. First round, all players have a match against their nearest neighbour in rating to both sides, that is two matches ("Battle of Brothers"). A match is a game with player A white player B black, and a game more with reverse color.

3. If a player lost 2 matches, he's eliminated. A tie is 0.5 lost match to each player.
Points:
A match has 1 point in play. A match is two games, each with 0.5 point in play.
If a player loses a game, he lost 0.5 point (0.5 match). If a game is a draw, each player lost 0.25 point from that game (0.25 match).

4. Second round, all players have a match against their next-nearest neighbour in rating to both sides, that is again two matches ("Battle of Family"). Again players with a total of 2 losses or more are eliminated.

5. It is all the way aimed at each player in each round having two opponents, one stronger and one weaker as close in strength as possible ("Battle of Neighbours"). And that a match is not repeated, as far as possible. After each round, players with a total of 2 losses or more are eliminated.

6. Eventually perhaps one player is left, the winner.

Or perhaps two players, who must then have another round possibly with several matches at once ("Duel").
If both players have 0 losses it would take 3 matches possibly plus one. If one player has 0 losses and the other 1 loss it would take 2 matches possibly plus one.

7. If top players are very even, they could all kill each other off. If that happens, their results against each other is counted for this round. In case of a tie, the Sonneborn-Berger score is calculated for this round. If still a tie, the player who won with the shortest game length, is the winner. (If a game was not played to the end, the number of moves it would take to finish the game, is added.) In the unlikely case of still a tie, another round among the tied players to find the winner.

8. Short timing was used all the way.

- The two first rounds each of 2 opponents can be one round against 4 opponents and double timing.

Post Reply