(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[baduk]PB[movies]
(;B[qd]C[The first invasion:
Black: Lee Changho
White: Yoda Norimoto ]
;AW[qb][rb][lc][oc][qc][sc][cd][ed][hd][rd][dg][hg][oi][qi][cj][dl][kn][ho][io][hp][jp][dq][eq][jq]AB[pb][nc][pc][ne][pe][re][ff][qg][fh][fj][cl][cm][qm][do][dp][gp][ip][pp][cq][fq][hq][iq][cr]C[We focus on how Yoda Norimoto invades the lower right corner.]
(;W[nq]
;B[pq]C[Too easy for black])
(;W[qq]C[The normal idea]
(;B[pq]SQ[jp][jq]C[In this case blocking from this side is not good.
Black only plays here when there are black stones around the marked spots, but these are white in this case.]
;W[qp]
;B[qo]
;W[ro]
;B[rn]
;W[po]
;B[qn]
;W[pr]
;B[or]
;W[qr]
;B[nq]
;W[rp]
;B[oo]LB[mi:A]C[A joseki, white has sente however and can escape with A.
Black has a lot of influence, but can not use it.])
(;B[qp]C[The correct move in this case]
;W[pq]
;B[oq]
;W[or]
;B[nr]
;W[nq]
;B[op]
;W[mr]
;B[pr]
;W[ns]
;B[qr]C[A joseki, probably black expected this variation.]))
(;W[ro]C[In the game white played here however.]
(;B[qp]C[Defending the corner allows white to link up.]
;W[qn]
;B[pn]
;W[rm]
;B[ql]
;W[rl]
;B[qk]
;W[rk]
(;B[mq]
;W[rq]C[White is safe on the right side and also black does not gain any points.])
(;B[rp]
;W[nq]C[White gets both sides.]))
(;B[rp]C[Also not good for black]
;W[qp]
;B[qq]
;W[qo]
;B[rq]
;W[pn]LB[po:A]SQ[qm]C[Notice that this kosumi is a bit better than the push at at A.
This result is good for white, the marked stone is very lonely.])
(;B[qo]C[This is the game]
(;W[rp]C[Not good]
;B[qq]
;W[rn]C[It is not sure if white can live.])
(;W[qq]C[White plays lightly.]
(;B[pq]C[When black blocks from this side we return to a previous variation]
;W[qp]C[Good for white])
(;B[rn]C[Therefore Lee Changho blocked from this side]
;W[or]
;B[pq]
;W[pr]
;B[rq]
;W[rr]
;B[rp]
;W[np]C[The result from the game.
White's invasion was a success.])))))
(;B[pd]C[The second invasion:
Black: Chen Yaoye
White: Zhou Ruiyang]
;AW[cb][fb][gb][dc][gc][dd][gd][ce][he][ie][bf][if][bg][cg][ih][pm][on][do][io][jo][po][qo][cp][fp][mp][pp][fq][qq][fr][pr]AB[cc][fc][ic][kc][fd][nd][de][ge][qe][cf][df][gf][hf][dg][di][ol][pl][pn][ho][ko][no][oo][ip][jp][eq][hq][nq][oq][pq][or]C[It is white to play, how to invade the right side?]
(;W[oi]C[White could consider reducing]
;B[mi]C[But it is not easy for white to find the next move after black attacks])
(;W[qi]C[This is the move from the game, it might look normal at first sight.]
;B[oi]C[And perhaps also dangerous.]
;W[qc]C[White plays a testing move]
;B[pc]
(;W[rd]C[Can white live here?]
;B[re]
(;W[rb]
;B[pb]
;W[sc]
;B[qb]
;W[qd]
;B[ra]C[White dies here.])
(;W[pb]
(;B[ob]
;W[rb]
;B[pa]
;W[qa]C[This becomes ko])
(;B[rb]C[black can consider trying to kill though]
;W[qb]
;B[ob]
;W[ra]
;B[sb]
;W[se]C[When this hane is sente white can live]
(;B[rg]
;W[pa]C[White lives])
(;B[sf]
;W[sd]
;B[qd]
;W[rc]
;B[pa]C[In this case black can try to kill everything]
;W[rf]C[When white cuts]
;B[rh]C[black has a good attack]))))
(;W[re]C[In the game white played another probing move]
(;B[rd]
;W[rf]
;B[rc]
;W[pg]
;B[ng]
;W[rk]C[White lives easily])
(;B[rf]C[The game]
;W[rd]
;B[qb]
(;W[qd]
;B[qf]
;W[rb]
;B[pb]
;W[ra]
;B[se]
;W[sc]
;B[rl]C[White can live, but it is too small])
(;W[rb]C[The game]
;B[qd]
;W[rc]
;B[pb]
(;W[qf]C[The cut does not work]
;B[qg]
;W[pf]
;B[rg]
;W[pg]
;B[ph]
;W[qh]
;B[og]
;W[of]
;B[nf])
(;W[rg]
(;B[sf]
(;W[se]C[white can live again but it is small]
;B[qg]
;W[ra])
(;W[qf]C[White needs to cut]
;B[qg]
;W[pf]
;B[rh]
;W[pg]
;B[qh]
;W[ph]
(;B[pi]C[Overplay, this does not work]
;W[ri]
;B[sg]
;W[si])
(;B[ri]C[black needs to push]
;W[pi]
;B[qj]
;W[pj]
;B[qk]LB[ra:C][se:A][sg:B][oi:D]C[White is happy. White can still live with the sequence A-C.
Also black is low and the original attacking stone at D looks strange])))
(;B[qf]
(;W[sf]C[White did not connect here, it is too dangerous]
;B[rj]C[black can try and capture all]
;W[ri]
;B[pj]
;W[qg]
;B[ph]
;W[qh]
;B[sh]
;W[si]
;B[sg]C[When white dies here the game is over])
(;W[qk]C[White found this move, normally it is too direct.
But now it makes miai]
(;B[ql]
;W[sf]C[white lives])
(;B[sf]C[The game]
;W[ql]C[White reduced the right side and gained points there. A good results for white.]))))))))))
