Suggestion for the format of World Championship tournament 2023.
Format as tested May 2023:
Four lines as last year:
Copenhagen Hnefatafl 11x11.
Historical Hnefatafl: Saami Tablut-w 9x9 & Welsh Tawlbwrdd-w 11x11.
Sea Battle Tafl: Sea battle-2526 9x9 & Sea battle-204577-w 11x11.
Race games: Daldøs 3x12 & Saami Sáhkku 3x15.
x2 (time buffer 3.5 days, incr. per move 4 hours) or possibly x4 (time buffer 5.5 days, incr. per move 8 hours).
When a game lasted a long time, the increment per move is gradually reduced.
Protected miminum time per move 2 hours (!).