Isinyathelo 17 · Okwengcweti
Empty Rectangle (unxande ongenalutho): liyini leli qhinga? Indlela yokuxazulula iSudoku
Uma izindawo zenombolo ebhokisini zingena esiphambanweni somugqa owodwa nekholomu eyodwa, ungakuhlanganisa nomugqa noma ikholomu lapho leyo nombolo inezindawo ezimbili kuphela, ukuze uyisuse esikweleni esithile.
Liyini leli qhinga
Sebenzisa inombolo eyodwa (isib. u-2) uma izindawo zayo ebhokisini zingena esiphambanweni: umugqa owodwa nekholomu eyodwa. Okunye kwebhokisi akuna-2 — yingakho kuthiwa unxande ongenalutho.
U-2 waleso bhokisi kumele abe semugqeni wesiphambano noma ekholomini yaso. Kuhlanganise nekholomu (noma umugqa) lapho u-2 engangena ezindaweni ezimbili kuphela, uzothola isikwele esingeke sibe ngu-2 noma kunjani.
Ungalibona kanjani
Khetha inombolo eyodwa, uthole ibhokisi lapho izindawo zayo zisemugqeni owodwa nasekholomini eyodwa kuphela, bese ubheka kuleyo migqa ukuthi ikhona yini ikholomu (noma umugqa) enezindawo ezimbili kuphela.
Isibonelo
Izikwele eziphuzi zikhombisa ukuthi ubheke kuphi, ezisawolintshi ziyisizathu, izinombolo ezibomvu yizinombolo ezingenzeka ongazisusa, kanti inombolo eluhlaza okwesibhakabhaka iyimpendulo.
U-1 webhokisi 3 kumele abe semugqeni 2 noma sekholomini 7. Ekholomini 3, u-1 angangena kuphela esikweleni M2K3 noma M6K3. Uma isikwele M2K3 singu-1, u-1 webhokisi 3 ugcina sekholomini 7 futhi uvimba isikwele M6K7. Uma isikwele M6K3 singu-1, sivimba isikwele M6K7 ngqo. Noma kunjani, isikwele M6K7 angeke sibe ngu-1.