Kungani sinomthetho wokuphindaphinda kathathu emidlalweni ye-chess?
Context:Emdlalweni we-chess, umthetho wokuphindaphinda kathathu uthi umdlali angafaka isicelo sokuthi kudwetshwe uma isikhundla esifanayo senzeka kathathu phakathi nomdlalo. Lo mthetho waziwa nangokuthi ukuphindaphindeka kwesikhundla futhi, emithethweni ye-USCF, njengokuvela kathathu kwesikhundla. Izikhundla ezimbili "ziyafana" ngokwencazelo uma izinhlobo ezifanayo zezingcezu zithatha izikwele ezifanayo, umdlali ofanayo unakho ukuhamba, amalungelo asele okusakaza ayafana futhi nethuba lokuthwebula en passant liyafana. Izikhundla eziphindaphindwayo akudingeki zenzeke ngokulandelana. Isizathu salo mthetho siwukuthi uma isikhundla sitholakala kathathu, akukho ntuthuko yangempela eyenziwayo futhi umdlalo ungaqhubeka ngokungapheli.  Umdlalo awuthathwa ngokuzenzakalelayo uma isikhundla senzeka okwesithathu <unk> omunye wabadlali, ngesikhathi sabo, kufanele afake isimangalo sokuthatha isikhundla nomphathi. Isimangalo kufanele senziwe ngaphambi kokwenza isinyathelo esizokhiqiza ukuphindaphinda kwesithathu, noma ngemuva kokuthi umphikisi enze isinyathelo esizokhiqiza ukuphindaphinda kwesithathu. Ngokuphambene, umthetho wokuphindaphinda okuphindwe kahlanu udinga ukuba unompempe angenele futhi amemezele umdlalo ukuthi udonswa uma isikhundla esifanayo senzeka izikhathi ezinhlanu, abadlali abadingi ukufaka isimangalo.
Lo mthetho uqinisekisa ukuthi umdlalo uphela futhi awuqhubeki unomphela.