Chess Tournament Manager

Swiss chess and round-robin tournament manager

Create and manage a chess tournament.

Two tournament systems available:

SISTEMA ROUND-ROBIN :

Rounds

The number of rounds depends on the number of participants, if the number of players is even, the number of rounds is equal to the number of players minus one, otherwise it is equal to the number of players.

Pairings

In the case of a single round-robin tournament, the pairings are determined so that each player meets every other player exactly once during the tournament; in the case of a double round-robin tournament, the pairings are determined so that each player meets all the others. exactly twice during the reverse colors tournament.

Punctuation

A win is worth 1 point, a draw is worth 0.5 points for both players and a loss is worth 0 points.

Desempate Sonneborn-Berger

At the end of the tournament, if two or more players have the same point total, the Sonneborn-Berger tiebreaker will be used to determine the winner. A player's Sonneborn-Berger score is calculated by adding the scores of his defeated opponents and half the points scored against the opponents he drew with. This rewards players who defeated stronger opponents during the tournament and helps break ties in the final standings.

Winner

In the end, the player with the highest total score, including the Sonneborn-Berger score if necessary, is declared the winner of the tournament.

SWISS SYSTEM:

Rounds

The number of rounds depends on the scheduled duration of the tournament and the number of participants. Typically, Swiss tournaments last from 4 to 9 rounds or more, depending on the circumstances and the total number of participants.

Pairings

In the first round, players are randomly paired. From the second round onwards, players are paired based on their accumulated scores up to that point. The main objectives of pairing are to prevent players from meeting more than once if possible, and to match players with similar scores by always trying to alternate colors.

Punctuation

A win is worth 1 point, a draw is worth 0.5 points for both players and a loss is worth 0 points.

Buchholz tiebreaker

At the end of the tournament, if two or more players have the same point total, the Buchholz tiebreaker is used to determine the winner. A player's Buchholz score is calculated by adding up their opponents' color rummy scores, without considering slack points. This rewards players who defeated stronger opponents during the tournament and helps break ties in the final standings.

Winner

In the end, the player with the highest total score, including the Sonneborn-Berger score if necessary, is declared the winner of the tournament.