Isinyathelo 6 · Okuphakathi
Pointing (ziqondene ngaphakathi ebhokisini): liyini leli qhinga? Indlela yokuxazulula i-Killer Sudoku
Uma zonke izindawo inombolo engangena kuzo ngaphakathi ebhokisini zisemugqeni owodwa noma ekholomini eyodwa, ungasusa leyo nombolo kwezinye izikwele zalowo mugqa noma yaleyo kholomu ezingaphandle kwebhokisi.
Liyini leli qhinga
Uma, ngaphakathi ebhokisini, inombolo ingangena kuphela ezikweleni ezisemugqeni owodwa oqondile (umugqa owodwa noma ikholomu eyodwa), leyo nombolo kumele ibe kuwo lowo mugqa.
Ngakho yonke enye ingxenye yalowo mugqa, ngaphandle kwebhokisi, ayinakuba naleyo nombolo.
Isibonelo: ebhokisini 1, u-5 angangena kuphela ezikweleni ezimbili zekholomu 2 → susa u-5 ekholomini 2 kwamanye amabhokisi.
Ungalibona kanjani
Ngaphakathi ebhokisini, hlola ukuthi izindawo zenombolo ziqondene yini emugqeni noma ekholomini. Uma kunjalo, lula lowo mugqa uphume ebhokisini bese ususa leyo nombolo lapho.
Isibonelo
Izindawo ezizungezwe ulayini wamachashazi yizibaya, isamba sisekhoneni eliphezulu kwesokunxele. Izikwele eziphuzi zikhombisa ukuthi ubheke kuphi, ezisawolintshi ziyisizathu, izinombolo ezibomvu yizinombolo ezingenzeka ongazisusa, kanti inombolo eluhlaza okotshani iyimpendulo.
Ebhokisini 4, u-8 angangena kuphela ezikweleni M4K2, M5K2 no-M6K2. Zonke zisekholomini 2. Ngakho u-8 webhokisi 4 ukhona ndawo thize ekholomini 2, futhi ezinye izikwele ekholomini 2 ezingaphandle kwebhokisi (M7K2 no-M8K2) angeke zibe ngu-8.