There were only four Swiss system tournaments in men's tournament history (1975, 1976, 1977, and 1979)  and seven in women's (1959, 1965, 1966, 1975, 1976, 1977, 1978). Twice (1937 men and 1962 women) final tournaments attracted international players, however in 1962 medals were awarded only to Polish women players. Twice women's championship (1960 and 1963) as the Polish crew tournament took place (it is signed by *) in the Winners table).
There were only four men's Swiss system tournaments (1975, 1976, 1977, and 1979) and seven women's (1959, 1965, 1966, 1975, 1976, 1977, 1978).  Twice (1937 men and 1962 women) final tournaments attracted international players, but in 1962 medals were awarded only to Polish women. Twice (1960 and 1963) the women's championship was a Polish crew tournament.