Isinyathelo 9 · Okochwepheshe
X-Wing: liyini leli qhinga? Indlela yokuxazulula iSudoku
Uma inombolo inezindawo ezimbili kuphela emugqeni ngamunye kwemibili, futhi lezo zikwele ziqondene emakholomini amabili afanayo, ungasusa leyo nombolo kwezinye izikwele zalawo makholomu amabili (kuyasebenza nalapho imigqa namakholomu kushintshaniswa).
Liyini leli qhinga
Cabanga ngenombolo eyodwa kuphela (isib. u-4).
① Emigqeni emibili, u-4 ungena ezikweleni ezimbili ncamashí kulowo nalowo.
② Lezo zikwele ziqondene emakholomini amabili afanayo, ngakho izikwele ezine zakha amakhona onxande.
Khona-ke u-4 uya kumakhona amabili aphambene ngokutshekile: phezulu kwesobunxele + phansi kwesokudla, noma phezulu kwesokudla + phansi kwesobunxele.
Noma kunjani, o-4 balawo makholomu amabili basetshenziswa ngaphakathi kunxande. Ngakho asikho esinye isikwele kulawo makholomu amabili esingaba ngu-4.
Ungalibona kanjani
Khetha inombolo eyodwa bese uthola umugqa onezindawo ezimbili zayo ncamashí. Uma omunye umugqa unezindawo zawo ezimbili emakholomini amabili afanayo, kuyi-X-Wing (imigqa namakholomu kungashintshaniswa).
Isibonelo
Izikwele eziphuzi zikhombisa ukuthi ubheke kuphi, ezisawolintshi ziyisizathu, izinombolo ezibomvu yizinombolo ezingenzeka ongazisusa, kanti inombolo eluhlaza okwesibhakabhaka iyimpendulo.
Cabanga ngo-9 kuphela. Kokubili emugqeni 3 nasemugqeni 8, u-9 angangena kuphela ekholomini 2 noma ekholomini 4 (M3K2, M3K4, M8K2 no-M8K4). Lezi zikwele ezine ngamakhona onxande, futhi u-9 uya kumakhona amabili aphambene ngokutshekile. Noma kunjani, o-9 bekholomu 2 nekholomu 4 basetshenziswa yilezi zikwele ezine, ngakho ezinye izikwele zekholomu 2 nekholomu 4 (M1K2, M1K4 no-M7K4) angeke zibe ngu-9.