We are using FIDE-compatible pairing engine.
You can use following play systems:
• Round Robin, Sonneborn–Berger score
• Swiss System, Buchholz score (Dutch version)
• Bulk players creation.
• Sort positions by Buchholz or Berger score.
• Sharing tournament to players.
• Designed for Chess, but can be used for Go, Draughts and other games with black and white sides.
• Arbitrary points option to support other games (soccer, tennis, darts etc).