Indlela yokuxazulula i-Killer Sudoku: funda amaqhinga isinyathelo ngesinyathelo

Imithetho ye-Killer Sudoku: indlela yokudlala i-Killer Sudoku · Ishadi lezinhlanganisela ze-Killer Sudoku: zonke izibaya (izikwele ezingu-2–9, zonke ezingu-502)

Amaqhinga ezinga elithi “Okwabaqalayo”

1. Isinyathelo 1
   Hidden Single (indawo eyodwa kuphela)

   Uma inombolo ingangena esikweleni esisodwa kuphela emugqeni, ekholomini noma ebhokisini, leso sikwele kumele sibe yileyo nombolo.

2. Isinyathelo 2
   Naked Single (inombolo eyodwa kuphela engangena)

   Uma isikwele sisala nenombolo eyodwa kuphela engenzeka ngemva kokubheka umugqa waso, ikholomu yaso, ibhokisi laso nesibaya saso, leyo nombolo iyimpendulo yaso.

3. Isinyathelo 3
   Cage Combinations (izinhlanganisela zesibaya)

   Ngesamba sesibaya nenani lezikwele zaso, linciphisa izinombolo ezingangena esibayeni; inombolo engekho kunoma iyiphi inhlanganisela engenzeka ayikwazi ukungena esibayeni.

Amaqhinga ezinga elithi “Okulula”

1. Isinyathelo 4
   Rule of 45 (izikwele ngaphakathi nangaphandle)

   Lisebenzisa iqiniso lokuthi umugqa ngamunye, ikholomu ngayinye nebhokisi ngalinye kunesamba esingu-45: susa izibaya ezingena ngaphakathi ukuze uthole isamba sezikwele ezingenayo noma eziphumela ngaphandle.

Amaqhinga ezinga elithi “Okuphakathi”

1. Isinyathelo 5
   Cage Pointing (isibaya esikhombayo)

   Uma inombolo kufanele ingene esibayeni futhi zonke izikwele zayo ezingenzeka lapho zisemugqeni owodwa, ekholomini eyodwa noma ebhokisini elilodwa, ungayisusa leyo nombolo kuyo yonke enye ingxenye yawo ngaphandle kwesibaya.

2. Isinyathelo 6
   Pointing (ziqondene ngaphakathi ebhokisini)

   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.

3. Isinyathelo 7
   Box/Line (umugqa unquma ibhokisi)

   Uma zonke izindawo inombolo engangena kuzo emugqeni noma ekholomini zingaphakathi kwebhokisi elilodwa, ungasusa leyo nombolo kwezinye izikwele zalelo bhokisi.

Amaqhinga ezinga elithi “Okunzima”

1. Isinyathelo 8
   Naked Pair (ipheya elibonakalayo)

   Uma izikwele ezimbili emugqeni owodwa, ekholomini noma ebhokisini zinezinombolo ezingenzeka ezimbili ezifanayo kuphela, ungasusa lezo zinombolo ezimbili kuzo zonke ezinye izikwele zalelo qembu.

2. Isinyathelo 9
   Hidden Pair (ipheya elifihlekile)

   Uma izinombolo ezimbili zingangena kuphela ezikweleni ezimbili ezifanayo emugqeni, ekholomini noma ebhokisini, ungasusa zonke ezinye izinombolo ezingenzeka kulezo zikwele ezimbili.

3. Isinyathelo 10
   Naked Triple (ezintathu ezibonakalayo)

   Uma izikwele ezintathu eqenjini, uma zihlangene, zinezinombolo ezingenzeka ezintathu ezehlukene kuphela, ungasusa lezo zinombolo ezintathu kwezinye izikwele zalelo qembu.

4. Isinyathelo 11
   Hidden Triple (ezintathu ezifihlekile)

   Uma izinombolo ezintathu zingangena kuphela ezikweleni ezintathu ezifanayo eqenjini, ungasusa zonke ezinye izinombolo ezingenzeka kulezo zikwele ezintathu.

Amaqhinga ezinga elithi “Okochwepheshe”

1. Isinyathelo 12
   Rule of 45 (imigqa noma amakholomu amaningi)

   Lisebenzisa umthetho wama-45 emigqeni noma emakholomu amabili noma amathathu angumakhelwane (noma emabhokisini amabili) ngesikhathi esisodwa – u-90 kwemibili, u-135 kwemithathu – lisuse izibaya ezingena ngaphakathi.

2. Isinyathelo 13
   X-Wing

   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).

3. Isinyathelo 14
   Swordfish

   Uhlobo lwemigqa emithathu lwe-X-Wing: uma izindawo zenombolo emigqeni emithathu zonke ziwela emakholomini amathathu afanayo, ungasusa leyo nombolo kwezinye izikwele zalawo makholomu.

4. Isinyathelo 15
   XY-Wing

   Izikwele ezintathu, ngasinye sinezinombolo ezingenzeka ezimbili — esiphakathi u-XY nezimbili ezisibonayo, u-XZ no-YZ — zikuvumela ukuthi ususe u-Z kunoma yisiphi isikwele esibona zombili lezo zikwele ezimbili.

5. Isinyathelo 16
   XYZ-Wing

   I-XY-Wing lapho isikwele esiphakathi sinezinombolo ezingenzeka ezintathu (XYZ): ungasusa inombolo abahlanganyela kuyo, u-Z, kunoma yisiphi isikwele esibona esiphakathi nazo zombili ezinye izikwele.

Amaqhinga ezinga elithi “Okwengcweti”

1. Isinyathelo 17
   Innie-Outie (umehluko wangaphakathi nangaphandle)

   Isinyathelo esingaphezu komthetho wama-45: lithola umehluko phakathi kwesikwele esishodayo ngaphakathi komugqa, ikholomu noma ibhokisi nesikwele esiphumela ngaphandle, okunciphisa zombili izinombolo.

2. Isinyathelo 18
   Skyscraper (izakhiwo ezinde)

   Uma inombolo inezindawo ezimbili kuphela emugqeni ngamunye kwemibili, futhi isiphetho esisodwa salowo nalowo siqondene ekholomini efanayo, ungasusa leyo nombolo ezikweleni ezibona zombili iziphetho ezisele.

3. Isinyathelo 19
   2-String Kite (ikhayithi)

   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.

4. Isinyathelo 20
   Unique Rectangle (unxande wesixazululo esisodwa)

   Lisebenzisa iqiniso lokuthi iphazili efanele inesixazululo esisodwa kuphela: izikwele ezine ezakha unxande emabhokisini amabili angeke zonke zigcine zinepheya elifanayo lezinombolo, ngakho ungasusa izinombolo ezingenzeka ezingaholela kulokho.

5. Isinyathelo 21
   Empty Rectangle (unxande ongenalutho)

   Uma izindawo zenombolo ebhokisini zingena esiphambanweni somugqa owodwa nekholomu eyodwa, ungakuhlanganisa nomugqa noma ikholomu lapho leyo nombolo inezindawo ezimbili kuphela, ukuze uyisuse esikweleni esithile.

6. Isinyathelo 22
   W-Wing

   Izikwele ezimbili ezingaba ngu-X noma ngu-Y kuphela futhi ezingabonani, uma zixhunywe ngumugqa noma ikholomu lapho u-X enezindawo ezimbili kuphela, zikuvumela ukuthi ususe u-Y kunoma yisiphi isikwele esibona zombili.

7. Isinyathelo 23
   Naked Quad (ezine ezibonakalayo)

   Uma izikwele ezine eqenjini, uma zihlangene, zinezinombolo ezingenzeka ezine ezehlukene kuphela, ungasusa lezo zinombolo ezine kwezinye izikwele zalelo qembu.

8. Isinyathelo 24
   Hidden Quad (ezine ezifihlekile)

   Uma izinombolo ezine zingangena kuphela ezikweleni ezine ezifanayo eqenjini, ungasusa zonke ezinye izinombolo ezingenzeka kulezo zikwele ezine.

9. Isinyathelo 25
   Finned X-Wing (i-X-Wing enephiko)

   I-X-Wing enezinombolo ezingenzeka ezimbalwa ezengeziwe (iphiko) eduze kwekhona elilodwa: usengayisusa leyo nombolo ezikweleni ezisemakholomini e-X-Wing futhi ezisebhokisini lephiko.

10. Isinyathelo 26
    Jellyfish

    Uhlobo lwemigqa emine lwe-X-Wing: uma izindawo zenombolo emigqeni emine zonke ziwela emakholomini amane afanayo, ungasusa leyo nombolo kwezinye izikwele zalawo makholomu.