Cov txheej txheem:

Yuav daws li cas 4x4 Rubik's Cube. Schemes thiab cov lus pom zoo
Yuav daws li cas 4x4 Rubik's Cube. Schemes thiab cov lus pom zoo
Anonim

Kev ua si zoo rau tes thiab taub hau - kev sib tw. Lawv txhim kho kev nco, logic, kev txawj tsav tsheb, qhia koj kom pom tseeb thiab so kom txaus - feem ntau, lawv muaj txiaj ntsig zoo, ob qho tib si rau menyuam yaus thiab cov neeg laus.

Ua kom nws txoj cai siv sijhawm so ntawm kev ua haujlwm tsis yog haus luam yeeb lossis khob kas fes nrog lub khob noom cookie, tab sis nrog kev sib tw hauv koj txhais tes. Tsis ntev koj yuav pom tias koj zoo li cas, koj lub ntsej muag txaus siab, lub hlwb pib ua haujlwm kom meej thiab sai sai - tag nrho cov no yuav cuam tshuam rau kev txhim kho koj lub hlwb, lub hlwb thiab nyiaj txiag. Qhov loj tshaj plaws (nws txawm fits rau hauv ib tug poj niam lub hnab), nrov thiab lom zem puzzle rau ntau xyoo yog Rubik's Cube.

Rubik's Cube 4x4
Rubik's Cube 4x4

Ntau yam

Nyob rau thaum xaus ntawm lub yim caum ntawm lub xyoo pua XX, Hungarian sculptor Erno Rubik patented lub ntiaj teb no qhov zoo tshaj plaws-muag puzzle - ib tug khawv koob lub voos xwmfab (los yog Rubik lub voos xwmfab - nyob rau hauv cov neeg). Thiab txij thaum ntawd los nws tuaj yeem pom nyob hauv yuav luag txhua lub tsev. Ob tus menyuam yaus thiab lawv niam lawv txiv zoo siab rau ntswj thiab tig cov khoom ua si "ntse", sim sau cov xim ntau yam uas tau tawg mus rau hauv ib daim duab. Tseeb tiag, tsis yog txhua tus ua tiav. Txhua qhov kev ua yuam kev hauvuas koj yuav tsum paub txog cov txheej txheem sib dhos. Hnub no peb yuav tham txog yuav ua li cas ua haujlwm nrog tus qauv 4x4.

yuav ua li cas daws rubik lub voos xwmfab 4x4
yuav ua li cas daws rubik lub voos xwmfab 4x4

Yuav kom nkag siab yuav ua li cas los daws 4x4 Rubik lub voos xwmfab, koj yuav tsum xav txog qhov tsim ntawm nws cov poj koob yawm txwv - tus qauv 3x3 - hauv qhov chaw. Nws muaj peb sab hauv axes nyob ib ncig ntawm cov ntsiab lus sab nraud tig - nees nkaum xya lub voos xwmfab. Lub ntsej muag suav nrog cuaj squares ntawm tib xim, tag nrho ntawm 6 lub ntsej muag - 6 xim.

Muaj cov piv txwv nrog beveled npoo thiab cov ntsiab lus ntawm ntau yam duab thiab ntau thiab tsawg, piv txwv li, squares thiab duab plaub hauv ib lub voos xwmfab. Rau cov menyuam yaus, cov duab tawg tau kos rau ntawm cov squares, xws li hauv cov duab dhos ua si, uas ua rau lub rooj sib txoos nthuav ntau dua, tab sis nyuaj dua. Rau cov neeg laus nyiam ntawm Rubik lub voos xwmfab, cov lej raug siv rau cov squares, uas yog, nws tsis txaus los sau lub ntsej muag los ntawm xim, koj kuj xav tau cov lej kom raug rau txhua tus ntawm lawv.

Hnub no muaj ntau qhov kev hloov kho - 2x2, 4x4, 7x7 thiab txawm 17x17! Sijhawm Rubik's Cube daws kev sib tw tau tuav. Cov kws tshaj lij ua rau lwm tus xav tsis thoob nrog lub peev xwm los sib sau ua ke yam tsis tau saib! Cov ntaub ntawv kawg rau kev sib dhos ceev tau teeb tsa los ntawm Ncej - 8.65 vib nas this, Italian sau lub voos xwmfab nrog ib txhais tes hauv 9.43 vib nas this. Nrog nws lub qhov muag kaw, lub teb chaws tus neeg tsim khoom sib sau ua ke cov khoom ua si tsis txawj tuag hauv 26.36 vib nas this. Txoj kev luv tshaj plaws rau qhov tseeb yog nees nkaum txav. Qhov kev ua tau zoo tshaj plaws - ceg sib dhos hauv 27.93 vib nas this!

Tab sis peb tseem yuav sim ua kom daws tau 4x4 Rubik's Cube. Cia peb ua ib qho kev tshwj tseg tam sim ntawd: cov uas muajkev txawj sau nws tus thawj coj - 3x3 lub voos xwmfab.

Basic assembly rules

Lub hom phiaj tseem ceeb ntawm kev npaj theem yog coj 4x4 lub voos xwmfab rau 3x3 lub voos xwmfab, tom qab ntawd kev sib dhos ntawm 4x4 Rubik lub voos xwmfab yuav yooj yim dua thiab meej dua. Txhawm rau ua qhov no, koj yuav tsum xub sau cov chaw ntawm lub voos xwmfab - cov no yog 4 sab hauv squares ntawm tib xim.

Qhov tseem ceeb! Cov duab 4x4 tsis muaj qhov chaw ruaj khov, uas yog, koj yuav tsum tau npaj cov xim (central fours) koj tus kheej. Ntxiv mus, yog tias koj tig tsuas yog cov npoo sab nrauv, ces qhov chaw ntawm cov chaw yuav tsis raug ua txhaum.

Tom qab koj muab cov chaw tso rau hauv qhov chaw, tib yam yuav tsum tau ua nrog cov ntug khub lossis kaum lub ntsiab lus. Los ntawm kev hloov lub ntsej muag sab nrauv, peb nthuav tawm lub voos xwmfab kom thaum ib khub ntawm sab laug lossis sab xis ntawm lub ntsej muag tig, cov ntsiab lus ntawm cov npoo tuaj ua ke.

Tom qab daws qhov teeb meem no, lo lus nug "yuav ua li cas daws 4x4 Rubik lub voos xwmfab" yuav tsis zoo li nyuaj - nws yuav luag 3x3 lub voos xwmfab, yog li peb siv cov qauv paub zoo, cov txheej txheem thiab cov tswv yim.

Parities

Tab sis parities tuaj yeem tshwm sim ntawm qhov kawg spin - cov xwm txheej nyuaj uas cov xim squares tuaj yeem muab tso tsis raug, thiab tsis muaj qhov ua piv txwv zoo li no hauv 3x3 tuag.

Ntau xyoo dhau los thiab kev mob siab rau ntawm cov neeg nyiam kev sib dhos tau ua rau kev txheeb xyuas txhua qhov ua tau zoo thiab txhim kho cov txheej txheem los daws cov teeb meem no.

rubik lub voos xwmfab 4x4 los ua ke daim duab
rubik lub voos xwmfab 4x4 los ua ke daim duab

Rubik's Cube 4x4 Assembly Diagram

Rau qhov yooj yim dua, tsab xov xwm muaj cov duab kos nrog cov kauj ruam ntawm txoj kev mus rau qhov kev daws teeb meem ntawm qhov puzzle, hauvsuav nrog cov xwm txheej sib xws.

Rubik's Cube 4x4
Rubik's Cube 4x4

Yog koj ceev faj, mob siab rau thiab ua raws li cov lus qhia saum toj no, sai sai no koj yuav qhia koj cov phooj ywg txog kev daws 4x4 Rubik's Cube!

Pom zoo: