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Wyjaśnienie
Reguła 75 posunięć jest automatyczną granicą dla pozycji, w których nie ma ruchów pionem ani bić. Gdy każdy gracz wykona co najmniej 75 kolejnych posunięć w tych warunkach, partia kończy się , nawet bez roszczenia.
Każdy ruch pionem albo każde bicie zeruje licznik. Siedemdziesiąt pięć posunięć oznacza 75 ruchów białych i 75 czarnych, czyli 150 pojedynczych tur.
Główna różnica wobec dotyczy procedury: po 50 gracz może zgłosić roszczenie, a po 75 wynik jest automatyczny. Jeżeli ostatnie posunięcie daje mata, mat ma pierwszeństwo, a partia zostaje wygrana.
Częste nieporozumienia
Remis unieważnia mata w 75. posunięciu
Nie. Jeśli posunięcie kończące sekwencję daje mata, mat ma pierwszeństwo.
Źródła
- 1.Article 9: The Drawn Game, FIDE Rules Commission
- 2.Leyes del Ajedrez 2023, FIDE Rules Commission
- 3.Glossary of Terms in the Laws of Chess, FIDE Rules Commission