(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[baduk]PB[movies]
(;B[pd]
;W[dp]
;B[pp]
;W[dd]
;B[fc]
;W[cf]
;B[jd]
;W[qf]
;B[qh]
;W[qc]
;B[pc]
;W[qd]
;B[pe]
;W[rf]
;B[pf]
;W[hc]LB[dc:D][jc:C][gd:E][hd:A][he:B]C[Lets continue with the weaknesses of the daidaigeima shape.
Last week we saw that A requires one favourable ladder for black.

In this episode we will discuss B and C and some special moves with D and E.

Black B goes for influence. 
C aims at solid territory. 
D wants to settle a weak group immediately.
E is a special way to pressure the white stone. ]
(;B[he]C[Good for moyo.
White can choose to play tenuki or to respond locally.]
(;W[gd]C[This kosumi is a good move.
Black can either choose to protect his top territory, or to start a messy fight in the upper left corner.

]
(;B[ic]C[The calmest move for black. ]
;W[hd]LB[hb:A]C[Ugly shape, but prevents black from playing at A and connecting underneath.]
(;B[ie]
(;W[fd]LB[cc:A]C[Even result.

Black still has aji at sansan and can get a ko there.])
(;W[dc]C[White can also defend the corner immediately.
See the BONUS tab for a game between Mok Chin-seok 3p and Yun Yeong-seon 2p.])
(;W[kc]LB[ib:A][le:B]C[This is a nasty point which can help white invading. It makes miai of connecting underneath with A and running out with B.]))
(;B[id]LB[kc:A]C[Also possible.
Looks strange, but now there is less aji in blacks territory around A.]))
(;B[dc]C[Possible.]
;W[cc]
(;B[ed]C[A fighting variation. ]
;W[db]
;B[de]
;W[cd]
;B[eb]C[If black has more ko threats, this is a mighty choice.])
(;B[cb]C[To settle quickly.]
;W[cd]
;B[eb]
;W[fd]))
(;B[cc]C[Black can also choose to invade the corner.]
;W[dc]
;B[db]
;W[cd]
;B[bb]
;W[bc]
;B[cb]
(;W[bd]C[Such a result can be expected.]
;B[fd]C[A fight.])
(;W[fd]C[If white wants to connect his stones. ]
;B[bd]C[Black is safe.])))
(;W[ec]C[White plays here to prepare a tesuji.

]
;B[fd]
;W[hb]LB[fb:A][kc:B]C[Tesuji! 
A and B have become miai. These are the inventions of Lee Changho. According to recent studies though, white is disadvantagous here. 

]
(;B[fb]C[Wrong in this scenario.]
;W[kc]
;B[de]
;W[ce]
;B[cc]
;W[cd]
;B[dc]C[Black can be satisfied locally in the corner. ]
;W[bc]
;B[ed]
;W[cb]
;B[db]
;W[da]
;B[eb]
;W[mc]LB[pd:A]C[However, globally the exchanges in the upper right corner, the joseki, have become really good for white. Blacks wall at A has become almost useless. ])
(;B[eb]C[A better way of playing here.

We take this move from a game between a teacher and his pupil: Korean legend Cho Hun-hyeon plays white here vs. his pupil Lee Changho. For the whole game, see the BONUS tab. ]
;W[db]
;B[gb]
;W[kc]
;B[ib]
;W[kd]
;B[ic]C[This result is playable for black. He makes use of his wall to attack the white stones.]))
(;W[jc]C[Another choice for white! 
When black has the big wall in the upper right, white has to play calm.]
;B[kc]
(;W[kb]C[This is the only move now. Black can choose to play calm aswell, or to attack. ]
(;B[kd]C[Peaceful.]
;W[ib]
;B[lb]C[Playable for both.])
(;B[jb]C[Attacking option.]
;W[ic]
;B[lb]
;W[kd]
;B[lc]
;W[ie]
;B[dc]
;W[cc]
;B[ed]C[A messy fight. Hard for both. ]))
(;W[kd]C[With the black wall in the upper right, this is overplay.]
;B[je]
;W[lc]
;B[kb]LB[jb:A]
(;W[jb]
;B[lb]C[Black can connect to the wall and white falls apart.]
;W[mc]
;B[mb]
;W[nc]
;B[nb])
(;W[lb]C[This is a ladder, good for black as well.]
;B[jb]
;W[ic]
;B[ld]
;W[ke]
;B[kf]
;W[le]
;B[md]C[White is laddered.]
(;W[me]
;B[mc]C[Black can capture.])
(;W[ib]
;B[me]C[Ladder.]))))
(;AE[pc][qc][qd][pe][pf][qf][rf][pp]AW[qj][qm]AB[qp][oq]C[Now black does not have a wall in the upper right. ]
;W[jc]
;B[kc]
;W[kd]C[So white can cut, resulting in complicated fights.]
;B[je]
;W[lc]
;B[kb]
;W[jb]C[Now white can block from this side. A lot of variations can follow. We will show one. You can read about this in the book "21st Century New Openings, volume 2" written by Kim Sung-rae 8p.]
;B[lb]
;W[mc]
;B[mb]
;W[nc]
;B[nb]
;W[oc]
;B[pc]
;W[ob]
;B[ld]C[Black can fight with this cut.]))
(;B[jc]C[Playable in some situations. But slightly passive here.]
(;W[he]C[First of all: Jumping out is usually not a good choice. ]
;B[fe]
;W[hg]
;B[fg]LB[cc:A]C[Whites group is weaker than blacks group. Blacks invasion at A becomes severe.])
(;W[fd]C[Instead white plays here. It is the common choice. 
]
(;B[ec]C[The normal move. ]
(;W[ed]C[Usually wrong. Only when white wants to develop the left side, this is considerable. ]
(;B[dc]
;W[cc]
;B[cb]
(;W[gc]
;B[bc]
;W[cd]
;B[eb]C[Black takes the corner. White has a wall.])
(;W[bc]C[Wrong. ]
;B[gc]
;W[gd]
;B[hd]
;W[he]
;B[id]C[Black gets many points, white is unsatisfied.]))
(;B[cc]C[Jumping here is too hasty. Only good in special situations.]
;W[dc]
;B[db]
;W[cb]
;B[bb]
;W[eb]
;B[ca]
;W[fb]LB[jd:A]C[White is thick. Black has sente. Blacks stone at A looks weird in retrospective.]
;AE[jd]
;B[je]C[Black would much rather like to have a stone here.]))
(;W[dc]C[The correct move.]
;B[ed]
;W[ee]
;B[gd]
;W[fe]
;B[gc]
(;W[ge]C[This push is necessary.]
;B[hd]C[Whites corner is bigger than in the previous variation. Playable for both. ])
(;W[fq]C[Wrong. If white plays tenuki..]
;B[ge]C[Black can expand his moyo.]
;W[gf]
;B[hf])))
(;B[ed]C[A special move. This black wedge depends on a ladder.]
(;AW[pp]SQ[pp]
;W[ec]SQ[pp]C[If white has the ladder, he can cut here.]
;B[ee]
;W[dc]
;B[gd]
(;W[fe]
;B[gc]C[Black has to defend.]
;W[ge]
;B[hd]
;W[ef]C[A great result for white. ])
(;W[fb]LB[fd:A]C[If white does not have the ladder and can not extend with A, he has to play here. This is bad for white.]
;B[fe]
;W[gc]
;B[hd]C[Black becomes very thick on the outside. Good for moyo.]))
(;W[ee]C[If white does not have the ladder, blocking here reverts to a variation we have already seen.]
;B[ec]
;W[dc]
;B[gd]
;W[fe]
;B[gc]
;W[ge]
;B[hd]C[Playable for both. White has sente and his play is dynamic.])))
(;W[db]LB[fe:A]C[Defending the corner calmly is also playable for white, a common technique. Black plays tenuki or comes back at A ]
;B[fe]C[In this position, both black and white have big endgame moves.]
(;W[fb]C[Connects the white stones underneath. ])
(;B[eb]C[Cuts whites stone off from the rest and pressures the white corner.])))
(;B[dc]LB[pe:A]C[Black can play the attachment in the corner immediately if he wants to settle himself quickly. 
When there is a strong black group at the top right like A, black does not choose to play this way. It isn't needed since black is strong in the vicinity.
This is more usual when black is weak, for example when the top right corner would be white. ])
(;B[gd]C[Another special strategy. 
In some situations it can be used to capture the white stone entirely. Or to make a ko. 

Here however black is not strong enough in the vicinity by far, the top has a lot of empty space, and black can not expect to kill white. 
Instead, black can expect to gain strength on the outside.]
(;W[jc]
;B[kc]
(;W[id]C[One way to break out. A big ko can follow.]
;B[jb]
;W[ib]
;B[ie]
;W[kb]
;B[ic]C[Huge ko for both. ])
(;W[kb]C[White can choose this to settle his group.]))
(;W[hd]
;B[he]
;W[ge]C[A technique to cut black and make a base for white. ]
;B[dc]C[To be expected. White can ignore or answer.]
(;W[fe]
;B[cc]
;W[ie]
;B[hf]
;W[id])
(;W[cc]
;B[ed]
;W[de]
;B[gc]
;W[hb]
;B[fe]
;W[gf]
;B[ie]
;W[ff]
;B[db]
;W[kc]))))
(;B[pd]C[Black is Chen Yaoye 9p. White is Niu Yutian 7p.]
;W[dd]
;B[qp]
;W[dq]
;B[nq]
;W[qj]
;B[fc]
;W[cf]
;B[qh]
;W[qm]
;B[jd]C[Here you see the daidaigeima in action!]
;W[hc]C[White invades. 


]
(;B[he]C[Since all the ladders are good for white, black plays here. ]
;W[qf]C[In the game white played tenuki. This is a feasable strategy. 

You can download the whole game in the BONUS tab. ]
;B[nd]
;W[qc]
;B[qd]
;W[rd]
;B[pc]
;W[rb]
;B[qb]
;W[rc]
;B[pb]
;W[pf]
;B[oh]
;W[nf]
;B[oj]
;W[rh]
;B[rg]
;W[ri]
;B[qg]
;W[rf]
;B[sh]
;W[mg]
;B[ld]
;W[om]
;B[mh]
;W[lh]
;B[nh]
;W[ke]
;B[li]
;W[kh]
;B[ki]
;W[jh]
;B[kd]
;W[ji]
;B[fe]
;W[kk]
;B[nl]
;W[nm]
;B[ml]
;W[mm]
;B[ll]
;W[ec]
;B[fb]
;W[jm]
;B[lm]
;W[ln]
;B[jl]
;W[kn]
;B[jk]
;W[jj]
;B[kl]
;W[lq]
;B[op]
;W[hl]
;B[do]
;W[hj]
;B[fo]
;W[kj]
;B[of]
;W[oe]
;B[og]
;W[ne]
;B[pe]
;W[ra]
;B[qi]
;W[rj]
;B[im]
;W[gf]
;B[ge]
;W[in]
;B[hm]
;W[il]
;B[mj]
;W[gm]
;B[fq]
;W[co]
;B[dp]
;W[cp]
;B[cq]
;W[bq]
;B[cr]
;W[cm]
;B[hn]
;W[io]
;B[gl]
;W[fl]
;B[gk]
;W[hk]
;B[gn]
;W[fm]
;B[dg]
;W[cg]
;B[dh]
;W[fi]
;B[ch]
;W[eb]
;B[df]
;W[ce]
;B[iq]
;W[ee]
;B[ef]
;W[ff]
;B[ck]
;W[ie]
;B[id]
;W[dj]
;B[dk]
;W[cj]
;B[dm]
;W[ek]
;B[bj]
;W[bi]
;B[bk]
;W[bh]
;B[hf]
;W[br]
;B[gh]
;W[dr]
;B[hi]
;W[gi]
;B[hh]
;W[ij]
;B[eq]
;W[jq]
;B[jr]
;W[ir]
;B[hr]
;W[ip]
;B[is]
;W[hq]
;B[kq]
;W[ir]
;B[er]
;W[cs]
;B[iq]
;W[pj]
;B[pg]
;W[re]
;B[pi]
;W[ir]
;B[ej]
;W[ei]
;B[iq]
;W[ok]
;B[ol]
;W[ir]
;B[pm]
;W[pn]
;B[pl]
;W[kr]
;B[iq]
;W[kp]
;B[ql]
;W[qo]
;B[rp]
;W[gr]
;B[gq]
;W[ir]
;B[el]
;W[fj]
;B[iq]
;W[od]
;B[hp]
;W[nc]
;B[mb]
;W[nb]
;B[mn]
;W[mo]
;B[on]
;W[oo]
;B[nn]
;W[no]
;B[rm]
;W[mr]
;B[nr]
;W[lb]
;B[mc]
;W[ma]
;B[kb]
;W[fa]
;B[ga]
;W[ea]
;B[gc]
;W[em]
;B[dn]
;W[dl]
;B[cn]
;W[bm]
;B[bn]
;W[cl]
;B[qn]
;W[po]
;B[ro]
;W[md]
;B[lc]
;W[ns]
;B[os]
;W[ms]
;B[or]
;W[le]
;B[la]
;W[na]
;B[mp]
;W[pp]
;B[pq]
;W[lo]
;B[am]
;W[al]
;B[an]
;W[aj]
;B[ks]
;W[mq]
;B[np]
;W[ls]
;B[km]
;W[jn]
;B[jf]
;W[je]
;B[if]
;W[js]
;B[ir]
;W[eh])
(;B[hd]C[A mistake. The ladders are good for white. ]
;W[id]C[White can wedge.]
;B[ic]
;W[ie]
(;B[jc]
;W[gd]C[This ladder is good for white. ])
(;B[hb]
;W[jc]
;B[gc]
;W[ib]
;B[hc]
;W[kd]C[This ladder is also good for white.]))))