(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.50]TM[1200]OT[5x30 byo-yomi]
PW[SHGoCamp]PB[Hutoshi4]WR[9d]BR[8d]PC[The KGS Go Server at http://www.gokgs.com/]CR[qr]AW[db][kb][lb][mb][dc][jc][kc][nc][ed][fd][gd][id][ld][nd][od][de][ge][ie][le][me][oe][hf][of][gg][ig][mg][og][fh][lh][mh][oh][ci][ji][pi][pj][qj][rj][nk][ok][rk][hl][gn][on][pn][qn][co][go][ko][ro][dp][fp][kp][mp][op][pp][kq][oq][er]AB[eb][gb][ib][jb][nb][ob][fc][gc][hc][ic][mc][oc][pc][hd][jd][kd][qd][he][ke][ne][ff][gf][kf][lf][mf][nf][qf][kg][lg][ng][nh][ph][qh][oi][mj][oj][ck][mk][pk][qk][fm][pm][cn][dn][fn][jn][kn][jo][jp][np][qp][rp][hq][jq][mq][nq][pq][or][qr]TR[ck][fm][cn][dn][fn]C[At this point, Black has a clear lead.
White's only chance is to attack the marked group strongly. But how should he start? Can you find the vital point of Black's shape?]RE[W+1.50]PL[W]
;W[ek]C[This is where it all starts. 
In the next few moves, White was as sharp as possible (following the proverb: "you can't win a fight without attacking").]
;B[bo]
;W[bp]
;B[do]
;W[cp]
;B[bj]
;W[dl]
;B[cl]
;W[bi]
;B[bn]
;W[dm]
(;B[dk]LB[ej:A]C[This move was a mistake.
MilanMilan, 9-dan, suggested Black A instead.]
;W[el]
;B[gl]
;W[ej]
;B[hk]
;W[gm]
;B[fl]
;W[ik]
;B[il]
;W[hm]
;B[hj]
;W[ij]
;B[cm]C[This is a classic shape, and it looks taken from a Life & Death book. How can White kill Black?]
;W[bl]C[Vital point!]
;B[di]
;W[dj]
;B[cj]
;W[dh]
;B[fo]
;W[gp]
;B[hh]
;W[ei]
;B[hg]
;W[if]
;B[ih]
;W[jh]
;B[jg]
;W[hi]TR[bj][cj][hj][ck][dk][hk][cl][fl][gl][cm][fm][bn][cn][dn][fn][bo][do][fo]C[This move is a tesuji that leads to an exchange. White kills the marked group and Black captures White's group at the top. The result is, however, favorable for White!]
;B[jf]
;W[ii]
;B[je]
;W[jl]C[Now White has the lead (K8 is probably not necessary).]
;B[mn]
;W[gr]C[Subsequent moves omitted.
W+])
(;B[ej]C[This way Black has bigger chances of living.]))
