Rubik Handbook

Rubiks Cube Basic Solving Lesson for Newbie

(Dnh cho ngi mi hc)

1

B00DF & Broken_heart


Li m uy l cun eBook tip theo ca mnh c lm di nh dng PDF vi s hp tc cng ngi bn l mt thnh vin ca din n Rubik Vit Nam. Cun eBook l mt mn qu dnh cho nhng bn yu thch v mi lm quen vi tr chi tr tu Rubik. Trong qu trnh thc hin c th cn nhiu sai st, mong cc bn b qua v hi vng n s gip cc bn nhiu iu trong giai on bt u vi tr chi th v ny. Lin h: Mi kin ng gp, yu cu t vn, gii p k thut xin gi v: o Minh c Email: [email protected] hoc [email protected] Y!M: broken_heart_1712 Mobile: 01656553959 Cc chng trnh nng cao, hng dn khc, cc bn c th truy cp http://rubikvn.org bit thm chi tit.

Bin son eBook: Boodf (a.k.a Krad ) Email: [email protected] Live ID: boodf eBooks cng tc gi:

2

B00DF



I Gii thiuLp phng Rubik (Khi Rubik hay n gin l Rubik) l mt tr chi gii c hc c pht minh vo nm 1974 bi gio s kin trc, iu khc gia ngi Hungary Ern Rubik. Cc tn gi sai thng gp ca tr chi ny l Rubix, Rubic v Rubick.

Mi mt ca phin bn ny c 9 vung v c sn ph mt trong su mu khc nhau, thng thng l trng, , vng, cam, xanh l cy v xanh dng. Bi ton bt u bng vic xo trn tt c v tr cc vung mi mt, tc l cc mu sc xen k nhau. Bi ton ch c gii quyt khi m mi mt ca khi l mt mu ng nht.

Cu to ca Rubik 3x3 C th ni khi Rubik l mt trong nhng loi chi bn chy nht th gii. Ring trong nm 2005, c khong 300.000.000 khi Rubik c bn ra. Phn loi: Rubik hin i thng lm bng cht do, c bn phin bn chnh l: 222 ("Khi b ti"), 333 (Khi tiu chun), 444 ("Rubik bo th") v 555 ("Rubik gio s"). Gn y cc khi ln hn xut hin trn th trng nh khi 666 v 777 (V-Cube 6 v V-Cube 7).

3



T khi Rubik tiu chun, ngi ta to ra cc khi c dng hnh hc khc nh t din (Pyraminx), bt din (Skewb Diamond), khi 12 mt (Megaminx) v khi 20 mt (Dogic); hoc cc khi khng lp phng nh 234, 335, 123. Thm ch hin nay vi my tnh, ngi ta c th m phng cc khi Rubik trong khng gian n chiu m bnh thng khng th to ra ngoi thc t. (Theo Wikipedia)

4

Rubik Skewb



Mt s dng Rubik c bit (12 mt, kim t thp, kim cng)

5



II Quy c v k hiu c bnMt khi Rubik tiu chun 3x3x3 c 6 mt, 3 thanh vi cc k hiu nh sau:Lu : Mu sc Rubik trong cc hnh di ch mang tnh minh ha lm ni bt phn ang ni ti ca Rubik ch khng mang ngha thc t chnh xc.

Cc vin ca Rubik

6



U, D, U, D, l k hiu cc bc xoay ca mt tng ng vi quy c nh sau: - U l xoay mt trn 1 bc thun chiu kim ng h - U l xoay mt trn 1 bc ngc chiu kim ng h - U2 l xoay mt trn 180 (xoay 2 bc, c th thun hoc ngc chiu kim ng h) Cc mt khc, quy c tng t (c mi tn minh ha chiu xoay).

7



Thng dng nht l 3 mt R, U, F v thanh gia M. t hn l L, D, B. Hai thanh E v S gn nh khng s dng. Cc k hiu ch thng (r, u, f, l, d, b) ch 2 mt (lp) gn ging nht vi cc mt c k hiu ch hoa tng ng (R, U, F, L, D, B). Cch xoay tng t nh cc mt chnh c k hiu in hoa, song ch xut hin trong cc chng trnh nng cao. Ngoi ra cn c cc k hiu x, y, z, x, y, z, x2, y2, z2 ch cch lt c khi theo 3 trc (cng thuc chng trnh nng cao).

8



Nh vy l xong phn gii thiu c bn v k hiu v cch xoay. Tip theo chng ta s i vo chi tit cch gii khi Rubik 3x3x3 theo cch n gin v hiu qu nht cho ngi mi hc.

9



III Cc bc gii mt khi Rubik tiu chun1. Tng th nhta. Ch thp y (Cross) Sau khi hon thnh bc ny, cc vin cnh v tm k vi mt y s phi cng mu vi nhau nh hnh bn.

C 2 trng hp:

F2

U

R

F

R

Mt y c th l bt k mu g ty ngi xoay v ty hon cnh. Cc bn mi hc nn chn mu trng bi mu trng ni bt v d tm khi quan st tng th khi Rubik.

Lu : T hp cc bc trong khung l cc finger trick c bn. Khi nim ny s c cp phn sau. Cc bn mi tp c xoay bnh thng theo cc bc luyn tp trc, khi no thun thc s luyn finger trick sau.

10


Rubiks Cube Basic Solving Lesson for Newbie Sau khi hon thnh, c th cc mt canh b nhm ln nh sau, cch cha ht sc n gin:

F2

U

R2

U

F2

M F2

M

y ch l nhng nhm ln cc bn mi hc gp phi v ko trong qu trnh to ch thp y, cc bn nn trnh cc nhm ln ny tit kim thi gian.

Chng ta ang gii theo phng php t di ln trn. y l phng php ti u c th kim sot tng tng gii.

b. Hon thnh tng th nht Sau khi gii quyt xong tm v 4 cnh ca tng th nht, ta ch cn x l nt 4 gc cn li l hon thnh tng ny. C 3 trng hp:

R U

U R

R U R

11



R

U

R

U

x3

Nu gc cn x l sai v tr ( y) nh gc mu en trong hnh bn phi th ta phi cho gc ra khi mt y ri mi p dng mt trong cc cng thc trn. Hon thnh tng y chng ta s c khi Rubik nh hnh di.

Cc cng thc phn va ri ch p dng khi ch thp y ng hon ton v cc gc v tr l tng. V d: gc c 3 mu - trng - lam nm tng trn v nhn thng xung l gc m n cn t vo. Bc ny khng kh, cc bn tp nhiu c th hon thnh rt nhanh.

2. Tng th haiC th ni, y l tng n gin nht, ch c 2 cng thc:

U

F

U

F

U

R

U

R

U

R

U

R

U

F

U

F

12


Rubiks Cube Basic Solving Lesson for Newbie Cn nu gp trng hp cnh cn chuyn sai v tr (nm v tr vin cnh mu en nh hnh bn v v ngc mu so vi 2 cnh) th ta cha bng cng thc di y ri li p dng 2 cng thc trn.

R

U

R

U

F

U

F

Hon thnh 2 tng, ta c hnh bn. Cn tun th cht ch quy tc cc v tr l tng ri mi p dng cng thc.

3. Tng th ba phn ny chng ta s lm vic vi mt trn cng ca Rubik. a. Ch thp nh Chng ta c 3 cng thc:

F U2

R F

U U

R R

U U

F R F

F

U

R

U

R

F

13



F

R

U

R

U

F

Kt qu bc ny:

b. Lm y mt nh Gm c 7 cng thc sau:

R

U

R

U

R

U2

R

R

U

R

U

R U2

R

R

U2

R2 U R2 U R2 U2 R

14



R

U

R R

U U2

R R

U

R

U

R

F

R

B

R

F

R

B

B

R

F

R

B

R

F

R

R2

D

R U2 R D R U2 R

15


Rubiks Cube Basic Solving Lesson for Newbie c. Hon v gc Chng ta c 2 cng thc:

R L

U U

R R

U U

R L

U2 U

R R

U U

F

R

U R

R F

U R R

R U F

U R R U F

Ch : C th p dng cng thc trn 2 ln gii trng hp i gc cho thay cho cng thc di. d. Hon v cnh Chng ta c 4 cng thc:

16

M2

U

M2 U2

M2

U

M2



M2

U

M2

U

M M

U2 U2

M2 U2

F2

U

M

U2

M

U

F2

F2

U

M

U2

M

U

F2

Xin chc mng! Sau khi hon thnh cc bc trn bn gii thnh cng khi Rubik. Vic cn li l luyn tp sao cho nhun nhuyn v ch n mt vi tips trong phn IV.

17



IV. Tips1. Look aheadLook ahead l vic cc bn c tm nhn bao qut khi sau khi gii xong mt bc no , tip tc gii khi vi nhng bc i ngn gn v hiu qu nht. Ch n cc vin trn mt U v l nhng vin d p vo mt chng ta. Khi mi bt u, nn lm t t, chm ri, va lm va quan st k tt hn l lm mt cch vi v. Look ahead gip cc bn gii khi nhanh hn v nu kt hp mt cch c nhp gia quan st v xoay, cc bn s khng phi dng li qu lu. Cng vi thi gian kin tr tp luyn, tc xoay ca cc bn s dn c ci thin ng k.

2. Finger tricksL k thut xoay Rubik bng ngn tay, sau cng c dng ch nhng t hp cc bc xoay c th ni lin li thnh mt mch v thc hin mt cch mm mi bng ngn tay. Sau y l phng php tp luyn. a. Ngn tr L ngn tay hay dung nht. Chuyn dung cho U. Dng u ngn tay y vo gc sau ca mt U. Lp li vi chc ln (c 2 tay) cho quen. Ngn tr cn dng cho F. Dng c tay xoay R, ngn tr s t ri ln mt F. b. Ngn tr + ngn gia Chuyn dng cho U2. Dng u ngn tr xoay U (nh trn), sau ngn gia theo t y v trc v xoay U2. 2 ngn ny cn c dng xoay F2. Khi ta hi lt khi ln. c. Ngn nhn Xoay M. ngn nhn ra pha sau khi, tc ng vo thanh M. Khi quen tay, kt hp vi U (ngn tr) to nn t hp finger trick MU. Ngn nhn cn dng xoay D v B. d. Ngn t

18

Kt hp vi ngn nhn xoay D2. Cch kt hp tng t nh ngn tr v ngn gia xoay U2. e. Ngn ci Ch yu gi khi, vut R, gt U, kt hp vi ngn tr (U) hoc tr + gia (U2) B00DF & Broken_heart

Rubiks Cube Basic Solving Lesson for Newbie f. Cc Finger tricks c bn Cc bn nn chu kh tm cch bi trn cho Rubik ca mnh trc khi tp Finger tricks. Nu khng c th s bin thnh Finger break, khi mnh khng chu trch nhim. ^_^

R U R U Ngn ci + C tay + Tr phi + Tr tri R F R F Tng t R2 U , R2 U2 Ngn ci + C tay + Tr (tr + gia) R U R U Ngn ci + Tr (kt hp vut) M U , M U Nhn + Tr

Cn mt vi Finger tricks na, song nh vy l cho cc beginners luyn tp xoay di 1 pht. Chc cc bn Nhanh chng bit xoay v Bit xoay nhanh chng.

19


Documents

Rubik Handbook