Isinyathelo 19 · Okwengcweti
2-String Kite (ikhayithi): liyini leli qhinga? Indlela yokuxazulula i-Killer Sudoku
Uma inombolo inezindawo ezimbili kuphela emugqeni owodwa nezimbili kuphela ekholomini eyodwa, futhi lowo mugqa naleyo kholomu kuhlangana ebhokisini elilodwa, ungasusa leyo nombolo esikweleni esibona zombili iziphetho ezisele.
Liyini leli qhinga
Sebenzisa inombolo eyodwa, nomugqa owodwa nekholomu eyodwa lapho inezindawo ezimbili kuphela (izintambo ezimbili zekhayithi).
Isiphetho esisodwa somugqa nesiphetho esisodwa sekholomu kusebhokisini elifanayo. Angeke zombili zibe yileyo nombolo, ngakho esinye seziphetho ezimbili ezisele (izihloko zekhayithi) kumele sibe yiyo.
Noma yisiphi isikwele esibona zombili izihloko angeke sibe yileyo nombolo.
Ungalibona kanjani
Khetha inombolo eyodwa, uthole umugqa nekholomu, ngayinye inezindawo ezimbili ncamashí, bese uhlola ukuthi isiphetho esisodwa sakho kokubili sihlangana yini ebhokisini elifanayo.
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.
Cabanga ngo-5 kuphela. Emugqeni 9, u-5 angangena kuphela esikweleni M9K5 noma M9K8; ekholomini 4, kuphela esikweleni M7K4 noma M6K4. Izikwele M9K5 no-M7K4 zihlanganyela ibhokisi 8, ngakho angeke zombili zibe ngu-5. Lokho kusho ukuthi isikwele M9K8 noma M6K4 kumele sibe ngu-5. Noma yisiphi isikwele esibona zombili (M6K8) angeke sibe ngu-5.