(;AB[pd][qp][oq][nc][ql][qh]AW[dd][dp][qf][qj][rd][of]C[Lecture 16

Inefficiency (Part 2) 

*Always look at the former branch first.* 
*Thanks! Uberdude, for the title correction.*


Made by lovelove @L19 

http\://www.lifein19x19.com/forum/viewtopic.php?f=15&t=7273]
AP[MultiGo:4.2.1]SZ[19]MULTIGOGM[1]
;B[pi]C[Common move in this position];W[qc];B[kc]LB[fq:A][pj:B]C[White can tenuki (see A).

B is a common local response.]
(;W[fq];B[pj]C[Black can also play elsewhere for speed, but this is a very thick move.])
(;W[pj]LB[oj:A][ni:B]C[Attacking directly at A is not good.

B is a local shape move.]
(;B[oj];W[pl]LB[pk:A][qm:B]C[Cutting with A does not work.

B is the only local response.]
(;B[pk];W[qk];B[ok];W[qm];B[rl];W[rm]C[Black captured])
(;B[qm];W[ok];B[nj];W[ml]C[Black has helped white's haengma.]))
(;B[ni];W[oj]LB[oi:A][ng:B]C[Shouldn't connect with A, habitually.

B is a efficient move]
(;B[oi];W[ol];B[pn];W[mk];B[li];W[kk]C[White's haengma is one step faster.];B[mf]
C[White looks sealed in, but...];W[ld];B[lc];W[nd]C[Now, black group is more in danger.])
(;B[ng];W[ol]C[White needs to play here, or the whole Q10 group can be attacked severely.]
;B[pn];W[mk];B[nf]C[Keep chasing the white group is not a good idea now. If white plays another move on center to help her group, it will be a slow move in this opening stage.

Black can of course play elsewhere then O14, but this is a very thick move, which also helps attacking white's unsettled group later on, by preventing white playing here O14 and split black group. When a group is split, any atack will not be strong.]))))