(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[baduk]PB[movies]AB[oc][qd][qj]
;B[]
(;W[rd]C[This is an asking move, yosu-miru in japanese. Black has the choice to go for outward influence or to take profit in the corner.




]
(;B[qe]C[This aims at outward influence. Its drawback is that white can live in the corner.]
;W[qc]C[Usually white exchanges this immediately for blacks block]
(;B[pc]C[White can choose to make life immediately, or to play tenuki. Playing tenuki is more common, since making life in the corner is not big enough in early fuseki.


]
(;W[qb]C[This is the move that makes life.]
;B[re]
;W[sc]
(;W[pb]C[Note that white should not make this exchange.]
;B[ob]C[It is a matter of liberties. If white plays tenuki after the exchange, black can make a ko in the corner.]
;B[ra]
;W[rb]
;B[se]
(;W[sd]
;B[sb]C[A painful ko. White takes first.])
(;W[sa]C[This looks smart, but ends up in ko too. This ko is worse for white, because black can take first.]
;B[sd]
;W[qa]
;B[rc]C[Also ko]))
(;B[ra]C[This does not work, as white has one liberty more.]
;W[rb]
;B[se]
;W[sa]
;B[sd]
;W[rc]C[white lives like this])
(;B[pb]C[Black can get moves on both sides in endgame.]
;W[rb]
;B[se]
;W[sd])
(;B[se]C[But note that this is the correct order (Thanks yaya)]
;W[ra]
;B[pb]
;W[sb]
;B[sd]
;W[rc]C[White lives with only two points]))
(;W[re]C[In some cases, taking the corner is not good enough. White can try to crawl on the second line.]
(;B[qf]C[If black reacts like a good boy, ]
;W[qb]C[the result is slightly better for white.])
(;B[rc]C[So instead black usually resists.]
;W[qb]C[Extending is a good sacrifice, to gain more aji on the outside.]
;B[rb]
;W[qf]
;B[pf]
;W[pg]
;B[of]
;W[rg])
(;B[rf]C[Black can also play hane from the outside.]
;W[qb]
;B[sc]C[In this situation black can force a ko.]
;W[sb]
;B[rb]
;W[ra])))
(;B[re]C[Black can also plays here, this is rarely played]
;W[pc]
;B[od]
;W[ob]
;B[nb]
;W[pb]
;B[mc]
;W[rc])
(;B[qb]C[White should be careful. When black is very strong on the outside, he might be able to kill white.]
;W[pc]
;B[pb]
;W[pd]C[White escapes, but when black is strong on the outside it might get very hard to get two eyes.]))
(;B[rc]C[Let's start with this one. This is the first instinct, blocking to secure the corner.

]
(;W[qe]C[This technique is useful to try to create a base. This is good when there is space around A to make an extension.]
;B[pd]
;W[qh])
(;AW[oj][qj]AB[qh]LB[qh:A][oj:C][qj:B]C[When the black stone is closer to the shimari, like A, and white has moves in the vicnity like B and C, white could use the same technique.
]
(;W[qe]
;B[pd]
;W[pg]C[This shoulderhit puts a lot of pressure on blacks stone. ])
(;W[pd]C[This clamp can be powerful. 
]
(;B[pc]C[A big mistake. ]
;W[qe]
;B[qc]
;W[pg]LB[pc:B][pd:A]C[Compare this to the last diagram.

(Later) The exchange of white A for black B is good for white.])
(;B[qc]LB[qe:A][pf:B]C[The correct move. White is happy with the aji of A and B.]
;W[pf]C[This is a possible continuation.]
;B[qe]
(;W[nf]C[White is light, or can fight.])
(;W[qf])))))
(;B[pd]LB[qe:A][re:C][qf:B]C[When black answers white's probe like this, the white move looks like a submarine attack. 

Blacks move is solid. White has three possible reactions. 

The move at A is common. B is also played often.]
(;AB[cj][dp][fq]C[compare it for example with such a position.]
;W[bp]C[The submarine attack by white is a standard way to invade the left side.]
;B[cp]LB[oc:A][fq:B]C[The only difference between the top right group and the lower left are the stones at A and B. ])
(;W[qe]C[The first one is to play this hane. ]
(;B[rc]C[If black blocks from this side, we return to a variation we have already seen. ]
;W[qh]LB[rc:A]C[This is the same as when black starts at S17])
(;B[qg]LB[rc:A]C[Black can play at A again. But black can also choose a different path for example this pincer.]))
(;W[qf]LB[rc:A]C[This jump is light. It threatens the follow-up of A, making life in the corner. So black usually defends the corner.]
(;B[rc]C[Like this or like..])
(;B[re]LB[qf:A]C[this. Depending on the surroundings, white can make use of his stone at A.]
;W[rf]
;B[qe]
;W[pi]C[This is a technique to reduce blacks moyo.]))
(;W[re]C[This move is more heavy and aims at making a base at the side or in the corner immediately.]
;B[rc]LB[rb:A]C[White can play at A first, which is also a probe.]
(;W[rb]LB[qc:A][sc:B]C[This is a probe, since it forces black to choose between A or B. Whatever black will choose, white will gain something. ]
(;B[qc]LB[sc:A]C[Connecting is proper. Now white has a big endgame connection at A.]
;W[qh])
(;B[sc]LB[pb:A][mc:B]C[If black extends, he leaves big aji behind. White has a sente jump at A. If he gets moves around B, this might come in handy. ]
;W[mc]
;W[pb]
(;B[ob]
;W[qc]C[White kills the two stones.])
(;B[qb]
;W[qa]
;B[qc]
;W[ob]C[White connects and destroys blacks base.])))
(;W[qg]C[This small keima jump is also possible. ]))
(;AW[ql][qo][pq]AB[oj]C[Let's see a variation from a pro game.
This is from a game between Hong Minpyo 5p vs Han Sanghoon 1p from 2007.]
;W[qh]
;B[oh]
;W[rj]
;B[rk]C[



(;ater) what if white extends immediately?]
(;W[pi]LB[pj:A]C[Another probe! This is a standard technique which is good to know. Timing is of the essence here. At this moment black normally defends at A.


(later) Black can also choose to connect in a different way.]
(;B[pj]
;W[ri]C[Making black connect in bad shape. ]
;B[qk]LB[oi:A]C[On top of that black still has a big weakness at A. Let's compare]
;W[re]C[This was the progame.]
;B[rc]
;W[pf]
;B[of]
;W[pg]
;B[og]
;W[oi]
;B[ni]
;W[rg]C[White lives and black gains influence.])
(;B[qk]LB[oi:2][pj:1]C[Defending here is another choice, but leaves a lot of weaknesses behind and is therefore played rarely.. Black has 2 cutting points. ]))
(;W[ri]C[Wrong. ]
;B[qk]LB[pi:A]C[Black becomes  very strong. When white peeps at A now..]
;W[pi]SQ[pj]C[Black no longer will play the ugly shape at the marked point. He can defend his main weakness.]
;B[oi]LB[pj:A]C[There is still a cut at A, but this cut is not so severe. Black is stronger than in the previous diagram and can fight.])))
(;B[re]C[




(Later) This shape occurs in a fuseki that was popular a few years ago.]
(;W[qe]
;B[rc]
;W[pd]
;B[qc]
;W[rf]
;B[sd]
;W[og]
;B[qf]
;W[qg]
;B[pe]
;W[oe])
(;AE[rd][re][qj]AW[dd][dp]AB[pq]C[When white approaches the lower right corner..]
;W[po]
;B[qo]C[Black can choose to play this seemingly simple joseki. Some very complicated variations can arise.]
;W[qn]
;B[qp]LB[pm:B][pn:A]C[In the normal joseki white connects at A or B.]
(;W[pm]
;B[nq]
;W[qi]
;B[qg]LB[ql:A]C[However, black gets this move in sente. It threatens to attack white's base at A, so white usually responds.]
;W[oi]C[This opening is comfortable for black. Black still has the initiative and can play on the left side. So instead, many professionals try to be more active, and don't play the standard joseki. ])
(;W[rd]C[A testing move!]
(;B[qe]C[The idea is that if black plays calmly here..]
;W[pm]C[White will come back to the normal joseki.]
;B[nq]
;W[qi]C[Now if black wants to pressure the white group, he does not have a good move. ]
;B[qg]C[This jump feels too narrow. On top of that]
;W[oi]
;B[jd]
;W[qc]C[White can still live in this corner. ])
(;B[re]C[Black usually hanes. ]
;W[qe]LB[pe:A][rf:B]C[This crosscut is the only move. Black can choose A or B. We will only show the most basic variation of A. ]
;B[pe]
;W[qf]
;B[rf]
;W[qg]
;B[rg]
;W[qh]
;B[qc]
;W[pn]C[


(later) If you want to be a bastard, you can also play here with black]
(;B[nq]
;W[qj]C[This forms one of the most played josekis in this fuseki. ])
(;B[qj]C[This starts a complicated fight. ])))))
(;B[qc]C[The aim of this move is to avoid letting white make shape.]
;W[qe]C[If white wants to continue locally, this is the move. 

Black's most severe reaction is to attack white's base.]
;B[qg]
;W[rc]
;B[rb]
;W[qf]
;B[pg]
;W[pd]
;B[pc]
;W[sb]
;B[qb]
;W[of]C[White escapes into the centre. He has a little bit of eyeshape on the right side. Black can attack.]))
(;W[ql]
;AW[pp]LB[rd:A][qh:B]C[To conclude: Invading at A is not always the best move. In some cases, like here, invading at B might be better.]
;W[qh]LB[qc:B][qe:A]C[Since there is a lot of space, white can just place a stone inside it, and feel comfortable. He leaves the corner aji open. Later he might want to use it for moves like A or B.]))
