Round 1: Players are divided into four groups (quadrants). Q1 is assigned White against Q2 following seeding order; similarly, Q3 is assigned White against Q4. (This applies when there are 16 or more players. Otherwise, the top half is paired against the bottom half, and Swiss pairing begins at Round 2. For uneven groups, sizes are adjusted automatically, and with an odd number of players, the lowest-rated gets a bye.)
Round 2: Winners of the first half play winners of the second half in seeding order. Colors alternate from Round 1. (Exceptionally, if the higher-seeded player had Black in Round 1 and the lower-seeded player had White, the colors are reversed.)
Round 3+: Swiss pairings begin. Players are sorted by score, the selected tie-break (WNT or Buchholz), and initial seeding. Pairings are generated top-down.
Color Allocation: The player with fewer White games receives White. If equal, the lowest-rated player receives White (or lower-seeded if equal rating). Color balance is guaranteed (color difference can never reach 3). If color balance conflicts with the 2-in-a-row rule, up to three games in a row with the same color are permitted.
Randomization: If "Randomize players" is selected, the rating groups are preserved but shuffled, ensuring greater variety in first-round pairings for the same group of club players. If the number of players is uneven, the player receiving the BYE is selected at random from Q4.
Pairings
Enter results and proceed to the next round.
Board
White (Seed / Rating)
Result
Black (Seed / Rating)
Final Standings
Pos.
Seed
Player
Rating
Score
Colors
Current Standings
Pos.
Seed
Player
Rating
Score
Withdraw Player
Select a player to withdraw. If the player's game is currently in progress, their opponent is awarded a win by walkover (w.o.).
Winther Score (WNT)
Winther Score (WNT) = 100 × ∑ᵢ [ (Pᵢ / N) × (rᵢ + Pᵢ / (2N)) ]
∑ᵢ = sum over all opponents faced
rᵢ = your result against opponent i (1, 0.5, 0)
Pᵢ = opponent i's final tournament score
N = total number of rounds in the tournament
Pᵢ / N = opponent's score share (ratio expressed as a decimal between 0 and 1)
When players finish tied on points, they are separated based on the quality of the opposition they have faced. This new method provides a fairer reflection of player performance than traditional tie-break systems, consistently rewarding those who compete on the top boards. Although a player receives no points for a BYE, the WNT system exhibits a pronounced tendency to compensate for this in subsequent rounds. See also: Chess pairings: a review of Monrad, Swiss, and Berger.