(;CA[utf-8]AB[pq][qo][qp][nq][qh][qd]AW[dp][dd][po][pn][qn][qj]C[Lecture 18 

Invasion after joseki (Part 2) 

*Always look at the former branch first.* 


Made by lovelove @L19 

http\://www.lifein19x19.com/forum/viewtopic.php?f=15&t=7273]
AP[MultiGo:4.4.4]SZ[19]AB[oc]MULTIGOGM[0]
;B[]LB[oj:A][jc:B]C[One point jump at A makes a solid shape, but usually considered slow in the opening stage.

Tenuki (see B) is common]
(;W[oj])
(;W[jc];B[ql]C[Common invasion];W[pp]LB[op:A][qq:B]C[This is usually considered a bad move, for black can form a tiger's mouth with A.

However, it is not a good idea for black to play at A now, and B is a better response.]
(;B[op];W[qq];B[rq];W[qr];B[rr];W[rn];B[rp];W[rl]C[Comfortable for white])
(;B[qq];W[pl];B[rl]C[This move lets black connected with miai both sides.];W[pk]
;B[rn]C[If white hadn't played Q4-R3 exchange before, and play Q4 now or after, black will never respond with R3. This is why white plays the exchange before this sequence.])))