(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[7.50]
PW[Zhu Yi]PB[Chang Hao]DT[2006-12-09]EV[8th Chinese City League A, round 20]PC[The KGS Go Server at http://www.gokgs.com/]SO[Go4Go.net]C[Alexander Dinerchtein's top 15 Invasions of All Time.]RE[B+1.50]
(;B[qd]C[15]
;W[dd]
;B[pq]
;W[dp]
;B[fc]
;W[hc]
;B[oc]
;W[po]
;B[qo]
;W[qn]
;B[qp]
;W[pm]
;B[nq]
;W[qi]
;B[qg]
;W[cf]
;B[ql]
;W[rm]
;B[pj]
;W[qj]
;B[qk]
;W[rk]
;B[rl]
;W[sl]
;B[rj]
;W[sk]
;B[pi]
;W[ri]
;B[qh]
;W[rh]
;B[rg]
;W[kc]
;B[ol]
;W[ro]
;B[rp]
;W[sp]
;B[sn]
;W[rn]
;B[rr]
;W[nn]
;B[cn]
;W[cl]
;B[fq]
;W[dn]
;B[cq]
;W[cp]
;B[dq]
;W[ep]
;B[bq]
;W[dc]
;B[bp]
;W[hh]C[Number 15:
Chang Hao (black) vs Zhu Yi (white). Black to play. What is the best way to reduce the moyo on the top?]
;B[fg]C[W is not thick on the outside. So a very deep invasion works!]
;W[fi]
;B[jd]
;W[jc]
;B[hg]
;W[gg]
;B[gf]
;W[gh]
;B[hd]C[Black successfully made sabaki.]
;W[ff]
;B[gc]
;W[id]
;B[ie]
;W[ic]
;B[ge]
;W[fe]
;B[mc]
;W[je]
;B[jf]
;W[ke]
;B[ig])
(;B[qd]C[14]
;W[dd]
;B[pq]
;W[dp]
;B[fc]
;W[cf]
;B[db]
;W[od]
;B[oc]
;W[pd]
;B[pc]
;W[qe]
;B[nc]
;W[nd]
;B[md]
;W[qc]
;B[rd]
;W[qb]
;B[pe]
;W[pf]
;B[rb]
;W[oe]
;B[rc]
;W[mc]
;B[lc]
;W[mb]
;B[lb]
;W[nb]
;B[pb]
;W[ld]
;B[me]
;W[kd]
;B[ob]
;W[lf]
;B[mf]
;W[mg]
;B[ng]
;W[nf]
;B[na]
;W[mh]
;B[nh]
;W[ph]
;B[ni]
;W[qk]
;B[ok]
;W[qm]
;B[qj]
;W[pj]
;B[pk]
;W[qi]
;B[ql]
;W[rj]
;B[rk]
;W[rl]
;B[qj]
;W[le]
;B[ma]
;W[qk]
;B[lg]
;W[pl]
;B[lh]
;W[ge]
;B[gd]
;W[he]
;B[fe]
;W[ff]
;B[ee]
;W[ef]
;B[de]
;W[df]
;B[ce]
;W[cm]
;B[fq]
;W[nq]
;B[qp]
;W[dq]
;B[iq]
;W[kq]C[Number 14: 

Chen Yaoye (black) versus Huang Yuizhong (white).
White has a huge sphere of influence on the left. Invading will make or break your game. Where to play as black?]
(;B[ck]LB[dl:A]C[

In the game however Chen decided to try a very deep invasion! ]
;W[ek]
;B[dl]
;W[fp]C[A classic splitting attack by white.]
;B[gp]
;W[go]
;B[hp]
;W[fl]C[It's hard to get sabaki, but Black has a nice tesuji in reserve.]
;B[cn]C[Brilliant move!]
;W[dm]
;B[bm]
;W[bl]
;B[cl]
;W[bn]
;B[em]
;W[dn]
;B[el]LB[bk:A][en:B]C[Later Black can use A or B in sente]
;W[fo]
;B[fk]
;W[gl]
;B[bk]
;W[am]
;B[ej]C[Sabaki completed. B won the game])
(;B[dl]C[Usually black plays such a shoulderhit. ]))
(;B[qd]C[13.]
;W[pp]
;B[dc]
;W[cp]
;B[ep]
;W[de]
;B[ee]
;W[ef]
;B[ed]
;W[dg]
;B[cq]
;W[bq]
;B[dq]
;W[bo]
;B[iq]
;W[oc]
;B[pe]
;W[dm]
;B[lc]
;W[fe]
;B[fd]
;W[ge]
;B[gd]
;W[he]
;B[hd]
;W[ie]
;B[id]
;W[je]
;B[kd]
;W[gn]
;B[gp]
;W[hk]C[Number 13:
Piao Wenyao 5p (Black) vs. Liu Shizhen 6p (White)
Black to play and invade!]
;B[cf]C[Probe]
;W[cg]
;B[bg]
(;W[be]C[W overplayed here. He decided to kill everything -]
;B[dl]LB[bf:A]C[Now there is a bad aji inside. Black can connect at A and fight. But he decided to get sente moves first]
(;W[bh]C[Right move -]
;B[fl]
;W[el]
;B[em]
;W[ek]
;B[en]
;W[dn]
;B[fk]
;W[fj]
;B[do]
;W[cn]
;B[gj]
;W[ej]
;B[gk]C[

Black successfully reduced the moyo and even got some thickness.])
(;W[em]C[This would be another overplay.]
;B[bf]
;W[ce]
;B[ch]
;W[df]
;B[ck]
;W[bi]
;B[bh]
;W[cj]
;B[dj]
;W[bk]
;B[bl]SQ[dl][em]C[W cannot destroy the base anymore. The marked exchange helps black considerably.]))
(;W[bh]C[This is the right answer]
;B[bf]
;W[df]
;B[cd]))
(;B[qd]C[12.]
;W[dp]
;B[dc]
;W[pp]
;B[cn]
;W[fq]
;B[ci]
;W[kc]
;B[nc]
;W[hc]
;B[fc]
;W[he]
;B[bp]
;W[qn]
;B[hq]
;W[jq]
;B[ho]
;W[fn]
;B[jo]
;W[dn]
;B[dm]
;W[em]
;B[do]
;W[eo]
;B[en]
;W[cp]
;B[bq]
;W[co]
;B[dn]
;W[bn]
;B[fo]
;W[ep]
;B[fm]
;W[bo]
;B[gn]
;W[cl]
;B[nq]
;W[qf]
;B[dr]
;W[er]
;B[cq]
;W[br]
;B[dq]
;W[fr]
;B[pr]
;W[hr]
;B[fp]
;W[eq]
;B[id]
;W[hd]
;B[jb]
;W[kb]
;B[ib]
;W[ic]
;B[ar]
;W[bs]
;B[ds]
;W[ap]
;B[ir]
;W[iq]
;B[gr]
;W[gq]
;B[hs]
;W[hp]
;B[gp]
;W[hr]
;B[jc]
;W[jd]
;B[hq]
;W[ip]
;B[jr]
;W[hr]
;B[kd]
;W[je]
;B[hq]
;W[kq]
;B[bm]
;W[hr]
;B[ke]
;W[hb]
;B[hq]
;W[cm]
;B[bl]
;W[bk]
;B[ck]
;W[dl]
;B[el]
;W[dk]
;B[dj]
;W[ek]
;B[bj]
;W[cj]
;B[jf]
;W[ie]
;B[ck]
;W[ak]
;B[lc]
;W[lb]
;B[mb]
;W[ia]
;B[aj]
;W[cj]
;B[la]
;W[ck]
;B[ka]
;W[qi]
;B[fk]
;W[ej]
;B[fe]
;W[hr]
;B[qq]
;W[mq]
;B[mp]
;W[pl]
;B[eh]
;W[fb]
;B[eb]
;W[gc]
;B[bh]
;W[fd]
;B[ed]
;W[ec]
;B[pi]
;W[qj]
;B[fc]
;W[rd]
;B[rc]
;W[ec]
;B[qh]
;W[rh]
;B[fc]
;W[mr]
;B[gd]
;W[fa]
;B[ro]
;W[qo]
;B[rn]
;W[rm]
;B[lp]
;W[nr]
;B[or]
;W[np]
;B[oq]
;W[kr]
;B[qp]
;W[sn]
;B[sp]
;W[no]
;B[re]
;W[io]
;B[in]
;W[jn]
;B[qg]
;W[rf]
;B[rg]
;W[sg]
;B[pf]
;W[qe]
;B[sd]
;W[pe]
;B[sf]
;W[se]
;B[ri]
;W[rd]
;B[sh]
;W[qc]
;B[re]
;W[rp]
;B[rq]
;W[rd]
;B[pm]
;W[pd]
;B[qm]
;W[nm]
;B[ol]
;W[om]
;B[ql]
;W[nl]
;B[pk]
;W[jm]
;B[ll]
;W[lm]
;B[nk]C[Number 12:
Cho Chikun (black) vs Park Younghun (white). White to find a brilliant invasion.]
;W[cb]C[Park decided to play yose against this corner, which looks very thick]
;B[ea]C[Most active answer. Cho Chikun wants to get everything]
;W[cc]
;B[bd]
;W[cd]
;B[be]
;W[ef]C[Tesuji!]
;B[ff]
;W[eg]
(;B[di]C[B has no choice -]
;W[cf]
;B[ce]
;W[de]
;B[bf]
;W[fg]
;B[dd]
;W[gf]C[Big success for W. He reduced a lot and B has to add some stones later
Park, 9p is world #1 in yose and this was a typical yose tesuji]
;B[ee]
;W[df]
;B[gg]
;W[gh]
;B[hg]
;W[fh]
;B[ge]
;W[hf]
;B[db]
;W[im])
(;B[fg]
;W[dh]
;B[di]
;W[ei]
;B[fh]
;W[ch]
;B[bi]
;W[bg]C[B in trouble]))
(;B[qd]C[11.]
;W[dd]
;B[pq]
;W[dp]
;B[fc]
;W[cf]
;B[kc]
;W[po]
;B[qo]
;W[qn]
;B[qp]
;W[pn]
;B[nq]
;W[pj]
;B[rl]
;W[pp]
;B[qq]
;W[ql]
;B[db]
;W[fq]
;B[bo]
;W[bp]
;B[ch]
;W[co]
;B[cc]
;W[fd]
;B[gd]
;W[fe]
;B[ck]
;W[ec]
;B[fb]
;W[eh]
;B[cd]
;W[bi]
;B[bh]
;W[ci]
;B[di]
;W[dh]
;B[cj]
;W[ei]
;B[dj]
;W[cg]
;B[bj]
;W[lq]
;B[qk]
;W[pk]
;B[qm]
;W[pl]
;B[rn]
;W[pm]
;B[rm]
;W[fk]
;B[cn]
;W[dn]
;B[bn]
;W[cm]
;B[bm]
;W[lo]C[Number 11:
Shao Weigang (B) vs Fu Chong (W). Black to play
]
;B[gq]C[Attachments are usually good choices for deep invasions]
;W[gp]
;B[hq]
;W[fr]
;B[jq]LB[in:A][lr:B]C[Now we can see miai A-B]
;W[kr]
;B[in]C[B successfully lived and won the game])
(;B[pd]C[10.]
;W[dd]
;B[pq]
;W[dq]
;B[qk]
;W[mq]
;B[np]
;W[mp]
;B[mo]
;W[lo]
;B[mn]
;W[or]
;B[pr]
;W[oq]
;B[pp]
;W[kp]
;B[do]
;W[fp]
;B[cq]
;W[cr]
;B[ck]
;W[cm]
;B[dm]
;W[cn]
;B[dn]
;W[co]
;B[cp]
;W[dp]
;B[bo]
;W[bn]
;B[br]
;W[bp]
;B[bq]
;W[ao]
;B[dr]
;W[er]
;B[cs]
;W[dl]
;B[cl]
;W[el]
;B[fo]
;W[gp]
;B[go]
;W[bl]
;B[bk]
;W[ak]
;B[hp]
;W[hq]
;B[iq]
;W[ho]
;B[ip]
;W[eo]
;B[en]
;W[ep]
;B[fm]
;W[hn]
;B[fl]
;W[fk]
;B[hm]
;W[hl]
;B[ek]
;W[im]
;B[fj]
;W[gk]
;B[dk]
;W[gm]
;B[fn]
;W[hr]
;B[fr]
;W[es]
;B[ds]
;W[fq]
;B[fs]
;W[ir]
;B[nk]
;W[nc]
;B[oc]
;W[nd]
;B[pf]
;W[jd]
;B[lc]C[Number 10:
Zhong Wenjing (white) vs Huang Yizhong (black).]
;W[ld]
;B[nb]
;W[mb]
;B[ob]
;W[rk]C[It looks like a trick against kyu player, but it's a great idea!]
(;B[rl]
;W[qj]
;B[pk]
;W[ri]
;B[rg]
;W[oi]C[W cannot be killed])
(;B[rj]
;W[qj]
;B[ri]
;W[ok]
;B[nj]
;W[ql]
;B[pk]
;W[pl]
;B[pj]
;W[nl]
;B[ml]
;W[oj]
;B[pi]
;W[oi]C[Hard to kill this group]))
(;B[qd]C[9.]
;W[pp]
;B[dc]
;W[cp]
;B[ep]
;W[eq]
;B[dp]
;W[dq]
;B[co]
;W[fq]
;B[cf]
;W[od]
;B[ld]
;W[qe]
;B[pd]
;W[pe]
;B[oe]
;W[nd]
;B[of]
;W[re]
;B[pb]
;W[ob]
;B[pc]
;W[mb]
;B[rd]
;W[qh]
;B[kc]
;W[me]
;B[oh]
;W[qj]
;B[lf]
;W[mf]
;B[lg]
;W[mg]
;B[pi]
;W[og]
;B[pg]
;W[qi]
;B[qg]
;W[rg]
;B[pj]
;W[pk]
;B[ph]
;W[mh]
;B[ok]
;W[pl]
;B[ol]
;W[pm]
;B[om]
;W[pn]
;B[jg]
;W[lj]
;B[lh]
;W[nj]
;B[oj]
;W[ml]
;B[mm]
;W[lm]
;B[mn]
;W[ln]
;B[on]
;W[ll]
;B[op]
;W[pq]
;B[lp]
;W[lo]
;B[kp]
;W[mo]
;B[oq]
;W[mp]
;B[mq]
;W[lq]
;B[po]
;W[qo]
;B[oo]
;W[nq]
;B[qp]
;W[ro]
;B[mr]
;W[kq]
;B[qq]
;W[nr]
;B[or]
;W[lr]
;B[mi]
;W[ni]
;B[li]
;W[nh]
;B[mj]
;W[nk]
;B[ef]
;W[bp]
;B[dl]C[Number 9: 
Cho Chikun (white) vs Yamashita Keigo (black). White to play.]
;W[ic]C[Shinogi (saving groups) is a strong weapon of Cho Chikun]
;B[jb]
;W[ec]
;B[dd]
;W[db]
;B[cb]
;W[gd]
;B[ib]
;W[hg]
;B[gf]
;W[hf]
;B[ge]
;W[he]
;B[hc]
;W[hd]
;B[gc]
;W[hi]C[B got some points, but moyo is destroyed. Cho practised such invasions a lot in his games against Takemiya
Usually he was able to save all of his groups])
(;B[pd]C[8.]
;W[dd]
;B[qp]
;W[dp]
;B[fq]
;W[cn]
;B[kq]
;W[qj]
;B[qf]
;W[qm]
;B[pk]
;W[pj]
;B[pm]
;W[qn]
;B[pn]
;W[qk]
;B[pl]
;W[rp]
;B[po]
;W[ro]
;B[ql]
;W[rl]
;B[rm]
;W[rn]
;B[oj]
;W[jc]
;B[fo]
;W[df]
;B[dm]
;W[cm]
;B[dl]
;W[dr]
;B[ij]C[Number 8:
Wu Guangya (black) vs Liu Xiaoguang (white). White to play.]
;W[il]LB[en:A]C[There is a weakness at A, so W can try deep invasion
Liu Xiaiguang 9p has powerful style, so reducing softly (from outside) is too passive for him]
;B[gk]
;W[gl]
;B[fk]
;W[ip]
;B[ko]
;W[jo]
;B[kn]
;W[jn]
;B[km]
;W[jq]
;B[kr]
;W[en]
;B[fn]
;W[fm]
;B[em]
;W[fl]
;B[dn]
;W[eo]TR[fn][fo][fq]C[W not only lived, but he is trying to kill marked group now])
(;B[pd]C[7.]
;W[dp]
;B[fq]
;W[pp]
;B[cn]
;W[eo]
;B[cq]
;W[dd]
;B[fc]
;W[hc]
;B[cf]
;W[fd]
;B[cc]
;W[dc]
;B[cd]
;W[de]
;B[cb]
;W[db]
;B[qf]
;W[ho]
;B[cp]
;W[hq]
;B[nq]
;W[oq]
;B[np]
;W[pn]
;B[kp]
;W[kn]
;B[jq]
;W[dm]
;B[dn]
;W[en]
;B[em]
;W[cm]
;B[bn]
;W[dk]
;B[el]
;W[gl]
;B[ek]
;W[dj]
;B[ej]
;W[di]
;B[gj]
;W[bf]
;B[be]
;W[cg]
;B[df]
;W[ef]
;B[dg]
;W[eg]
;B[bg]
;W[ik]
;B[hl]
;W[hm]
;B[hk]
;W[il]
;B[ij]
;W[jj]
;B[gm]
;W[fm]
;B[gn]
;W[hn]
;B[fn]
;W[ii]
;B[hj]
;W[nr]
;B[mr]
;W[or]
;B[ji]
;W[dh]
;B[ch]
;W[kj]
;B[ln]
;W[lo]
;B[ko]
;W[mn]
;B[lm]
;W[mo]
;B[fl]
;W[go]
;B[eh]
;W[ih]
;B[fh]
;W[qh]
;B[ir]
;W[hr]
;B[ip]
;W[gq]
;B[lr]
;W[lp]
;B[jn]
;W[km]
;B[io]
;W[dq]
;B[dr]
;W[er]
;B[cr]
;W[in]
;B[jm]
;W[kl]
;B[jo]
;W[oh]
;B[jl]
;W[jk]C[Number 7:
Lee Changho (black) versus Yoo Changhyuk (white).

White's moyo is huge and Black has to find a way to live inside, on the right side.]
(;B[qn]
(;W[pm]
;B[qo]
;W[qp]
;B[qj]LB[rh:A][qm:B]C[A powerful move with great timing. It now makes miai between connecting underneath at A or making a living group with B.]
;W[ri]
;B[qm]
;W[pl]
;B[rj]
;W[rp]
;B[ll]
;W[kk]
;B[ph]
(;W[pg]
;B[pi]
;W[qg]
;B[og]
;W[pf]
;B[nh]
;W[of]
;B[ng]C[Now B is alive and he has clear lead]
;W[nf]
;B[im]
;W[nj]
;B[mj]
;W[mk]
;B[lk]
;W[lj]
;B[mi]
;W[ml]
;B[oj]
;W[mg]
;B[nk]
;W[fr]
;B[nc]
;W[qc]
;B[pc]
;W[qd]
;B[kc]
;W[kb]
;B[lb]
;W[jb]
;B[jc]
;W[ic]
;B[ka]
;W[ib]
;B[qe]
;W[pe]
;B[qb]
;W[rb]
;B[rc]
;W[rd]
;B[ra]
;W[sb]
;B[ob]
;W[ql]
;B[rl]
;W[rm]
;B[da]
;W[ea]
;B[ca]
;W[fb]
;B[sk]
;W[rn]
;B[lq]
;W[ok]
;B[qi]
;W[sh]
;B[nl]
;W[mm]
;B[qk]
;W[gg]
;B[jd]
;W[md]
;B[lc]
;W[ie]
;B[id]
;W[hd]
;B[fg]
;W[ff]
;B[gh]
;W[hg]
;B[kf]
;W[jf]
;B[kg]
;W[jg]
;B[kh]
;W[ke]
;B[le])
(;W[pi]
;B[qi]
;W[pg]
;B[rh]C[Easy to live]))
(;W[qm]
;B[qo]
;W[po]
;B[rm]
;W[ql]
;B[rq]
;W[rl]
;B[qr]C[Alive!])
(;W[qo]
;B[on]
;W[pm]
;B[oo]
;W[om]
;B[ll]
;W[kk]
;B[nm]LB[lj:B][im:A]C[A -B are both sente, so it's hard for White to fight]))
(;B[qo]
;W[po]
;B[qn]
;W[rp]C[Common order, but it's hard to live like this]))
(;B[qd]C[6.]
;W[dc]
;B[pp]
;W[dq]
;B[de]
;W[ce]
;B[cf]
;W[cd]
;B[co]
;W[dk]
;B[ep]
;W[eq]
;B[fp]
;W[gq]
;B[cq]
;W[gp]
;B[dp]
;W[gn]
;B[fq]
;W[fr]
;B[gr]
;W[hr]
;B[oc]
;W[nq]
;B[qn]
;W[no]
;B[oq]
;W[nr]
;B[pk]
;W[kd]
;B[df]
;W[fd]
;B[di]
;W[fk]
;B[hd]
;W[ff]
;B[ck]
;W[cl]
;B[cj]
;W[hf]
;B[ec]
;W[fc]
;B[ed]
;W[eb]
;B[fb]
;W[gb]
;B[db]
;W[fa]
;B[cb]
;W[bc]
;B[bb]
;W[ab]
;B[be]
;W[cc]
;B[mc]
;W[bf]
;B[bg]
;W[rd]
;B[re]
;W[nk]
;B[oi]
;W[qe]
;B[rf]
;W[om]
;B[pm]
;W[ni]C[Imamura Yoshiaki 8p (black) versus Kono Rin 7p (black).
Date: 23 December 2004.]
;B[jl]TR[li][mi][ni][ij][jj][kj][fk][gk][hk]C[Number 6:


Imamura, 8p invaded here. It's common to choose the move in the middle of the line, so it's really deep]
;W[hk]LB[jj:A]C[It looks too soft. I would prefer attack at A]
;B[ll]
;W[on]
;B[ik]
;W[hj]
;B[ij]
;W[oh]
;B[pi]
;W[pd]C[W thinks that he is not able to kill B directly, so he played tenuki and started fight on the top
B won this game finally and successful invasion is the main reason]
;B[qc]
;W[pc]
;B[qb]
;W[pb]
;B[oe]
;W[pe]
;B[of]
;W[pg]
;B[nh]
;W[ng]
;B[mh]
;W[og]
;B[mg]
;W[nf]
;B[mf]
;W[rc]
;B[rb]
;W[me]
;B[ne]
;W[md]
;B[pf]
;W[qf]
;B[qg]
;W[rg]
;B[ph]
;W[se]
;B[rh]
;W[sf]
;B[ob]
;W[oa]
;B[or]
;W[er]
;B[bl]
;W[pn]
;B[qm]
;W[cr]
;B[np]
;W[mp]
;B[op]
;W[lo]
;B[mq]
;W[lq]
;B[mr]
;W[lr]
;B[ns]
;W[bq]
;B[kb]
;W[bm]
;B[cm]
;W[cn]
;B[dl]
;W[dn]
;B[bn]
;W[bo]
;B[am]
;W[cp]
;B[ic]
;W[ie]
;B[kc]
;W[jn]
;B[kn]
;W[ko]
;B[in]
;W[io]
;B[jm]
;W[jo]
;B[ls]
;W[ks]
;B[kr]
;W[ms]
;B[ba]
;W[da]
;B[ls]
;W[js]
;B[hn]
;W[ho]
;B[gm]
;W[fn]
;B[ao]
;W[do]
;B[ig]
;W[hg]
;B[hh]
;W[el]
;B[hl]
;W[kf]
;B[kg]
;W[mm]
;B[ln]
;W[mn]
;B[mj]
;W[sh]
;B[si]
;W[ih]
;B[jh]
;W[ri]
;B[sg]
;W[qo]
;B[po]
;W[sh]
;B[dd]
;W[ea]
;B[sg]
;W[qp]
;B[qr]
;W[sh]
;B[bd]
;W[ac]
;B[sg]
;W[nc]
;B[nb]
;W[sh]
;B[af]
;W[ca]
;B[sg]
;W[lc]
;B[mb]
;W[sh]
;B[ad]
;W[aa]
;B[sg]
;W[rr]
;B[qq]
;W[sh]
;B[kq]
;W[lp]
;B[sg]
;W[jc]
;B[rf]
;W[jb]
;B[sc]
;W[qa]
;B[lb]
;W[re]
;B[rg]
;W[ra]
;B[ja]
;W[ib]
;B[ld]
;W[ke]
;B[le])
(;B[qd]C[5. Go Seigen (B) vs Fujisawa Hosai. A game with a special opening!]
;W[dc]
;B[pq]
;W[cp]
;B[od]
;W[ep]
;B[de]
;W[po]
;B[qo]
;W[ce]
;B[dd]
;W[pp]
;B[qp]
;W[cd]
;B[ec]
;W[oq]
;B[pn]
;W[df]
;B[cc]
;W[qq]
;B[pr]
;W[db]
;B[bc]
;W[rq]
;B[or]
;W[eb]
;B[fd]
;W[np]
;B[nq]
;W[fc]
;B[cf]
;W[qn]
;B[op]
;W[ed]
;B[ee]
;W[oo]
;B[no]
;W[fe]
;B[ef]
;W[on]
;B[mp]
;W[gd]
;B[pm]
;W[dg]
;B[eg]
;W[om]
;B[qm]
;W[cg]
;B[bf]
;W[rn]
;B[ol]
;W[eh]
;B[fg]
;W[nm]
;B[nl]
;W[fh]
;B[gg]
;W[mm]
;B[ml]
;W[gh]
;B[hg]
;W[lm]
;B[rm]
;W[bg]
;B[ro]
;W[be]
;B[jj]
;W[ik]
;B[ij]
;W[hk]
;B[kl]
;W[in]
;B[ke]C[number 5
Go Seigen (B) vs Fujisawa Hosai. Long mane Go by Fujisawa. His moyo is smaller, but more solid
B has bigger moyo, but easier to invade it

]
;W[mf]C[Finally Go Seigen was not able to kill it. It's hard to believe, but finally B got killed on the top!]
;B[ld]
;W[of]
;B[qf]
;W[kf]
;B[jf]
;W[kg]
;B[hi]
;W[jg]
;B[ig]
;W[je]
;B[if]
;W[lj]
;B[kj]
;W[md]
;B[me]
;W[ne]
;B[le]
;W[nd]
;B[lc]
;W[pe]
;B[pd]
;W[pb]
;B[mb]
;W[nb]
;B[oc]
;W[nc]
;B[ob]
;W[oa]
;B[rb]
;W[mh]
;B[oh]
;W[ph]
;B[og]
;W[qe]
;B[re]
;W[pf]
;B[qg]
;W[pg]
;B[oi]
;W[ng]
;B[pi]
;W[jd]
;B[ma]
;W[na]
;B[jc]
;W[ic]
;B[id]
;W[qh]
;B[rh]
;W[ie]
;B[ib]
;W[kb]
;B[hc]
;W[he]
;B[kc]
;W[gb]
;B[ka]
;W[mj]
;B[jh]
;W[ri]
;B[rg]
;W[qi]
;B[nj]
;W[ja]
;B[lb]
;W[sh]
;B[rd]
;W[la]
;B[hb]
;W[hd]
;B[lf]
;W[lg]
;B[kh]
;W[lh]
;B[qj]
;W[nh]
;B[li]
;W[sg]
;B[rf]
;W[rj]
;B[qk]
;W[mi]
;B[ki]
;W[qa]
;B[ra]
;W[ka]
;B[rk]
;W[sj]
;B[lk]
;W[ic]
;B[ga]
;W[fa]
;B[id]
;W[pj]
;B[nk]
;W[ic]
;B[bp]
;W[bo]
;B[id]
;W[ha]
;B[ia]
;W[ga]
;B[cq]
;W[dp]
;B[br]
;W[dr]
;B[gn]
;W[fk]
;B[bn]
;W[ao]
;B[co]
;W[cn]
;B[do]
;W[dn]
;B[eo]
;W[bm]
;B[en]
;W[gp]
;B[ho]
;W[iq]
;B[io]
;W[em]
;B[jn]
;W[fm]
;B[go]
;W[fq]
;B[fj]
;W[gj]
;B[gi]
;W[ej]
;B[fi]
;W[ei]
;B[ni]
;W[ic]
;B[dm]
;W[cm]
;B[id]
;W[jk]
;B[kk]
;W[ic]
;B[dq]
;W[er]
;B[id]
;W[gc]
;B[dl]
;W[ap]
;B[sk]
;W[ic]
;B[ck]
;W[cl]
;B[id]
;W[kd]
;B[qb]
;W[ic]
;B[ek]
;W[bk]
;B[id]
;W[mc]
;B[hq]
;W[ic]
;B[fl]
;W[el]
;B[gk]
;W[dk]
;B[id]
;W[sn]
;B[sm]
;W[ic]
;B[aq]
;W[an]
;B[id]
;W[rp]
;B[so]
;W[ic]
;B[hp]
;W[gr]
;B[id]
;W[hr]
;B[pc]
;W[ic]
;B[am]
;W[al]
;B[id]
;W[nf]
;B[pa]
;W[ic]
;B[af]
;W[jb]
;B[bd]
;W[ag]
;B[ae]
;W[fk]
;B[dh]
;W[di]
;B[ek]
;W[jp]
;B[gm]
;W[fk]
;B[gl]
;W[ko]
;B[jr]
;W[lr]
;B[mr]
;W[lp])
(;B[pd]C[4. ]
;W[dd]
;B[qp]
;W[op]
;B[dp]
;W[qq]
;B[rq]
;W[pq]
;B[ro]
;W[kq]
;B[pn]
;W[nc]
;B[pf]
;W[pb]
;B[qc]
;W[kc]
;B[cf]
;W[fd]
;B[bd]
;W[cc]
;B[ci]
;W[fq]
;B[iq]
;W[ko]
;B[fp]
;W[gp]
;B[gq]
;W[ep]
;B[fo]
;W[eq]
;B[eo]
;W[gr]
;B[hq]
;W[dq]
;B[cq]
;W[cp]
;B[do]
;W[bq]
;B[cr]
;W[br]
;B[fr]
;W[dr]
;B[co]
;W[bp]
;B[in]
;W[qh]
;B[ld]
;W[lc]
;B[qj]
;W[pj]
;B[pk]
;W[pi]
;B[ok]
;W[ni]
;B[nd]
;W[oc]
;B[rg]
;W[rh]
;B[mh]
;W[mi]
;B[lh]
;W[nk]
;B[mq]
;W[no]
;B[nl]
;W[qk]
;B[mo]
;W[mn]
;B[mp]
;W[nm]
;B[mk]
;W[ql]
;B[om]
;W[ln]
;B[rj]
;W[lr]
;B[qm]
;W[qg]
;B[rf]
;W[qf]
;B[qe]
;W[oe]
;B[od]
;W[pe]
;B[rd]
;W[nf]
;B[li]
;W[pg]
;B[ee]
;W[gf]
;B[fg]
;W[gg]
;B[gh]
;W[hh]
;B[ff]
;W[ge]
;B[hi]
;W[bn]
;B[ih]
;W[cl]
;B[hg]
;W[id]
;B[bc]
;W[bb]
;B[bo]
;W[ao]
;B[jp]
;W[kp]
;B[cm]
;W[bm]
;B[dl]
;W[ck]
;B[dk]
;W[jm]
;B[im]
;W[cj]
;B[di]
;W[cn]
;B[dm]
;W[dj]
;B[ej]
;W[bi]
;B[bh]
;W[bj]C[Number 4:
Kato Masao (black) vs Kobayashi Koichi (white). How should black invade the top? It seems too late...but..]
;B[hd]C[Black has a powerful ponnuki on the outside and he wants to use it!]
;W[he]
;B[db]
;W[cb]
;B[ic]
(;W[jd]C[Of course, W wants to kill -]
;B[gc]
;W[fb]
;B[fc]
;W[ed]
;B[eb]
;W[hb]
;B[gb]
;W[ib]
;B[fa]
;W[da]
;B[cd]
;W[dc]
;B[jb]
;W[jc]
;B[hc]
;W[kb]
;B[ha]
;W[ja]
;B[ie]C[Now it's a semeai. Very risky for W, but not risky at all for B]
;W[de]
;B[df]
;W[if]
;B[fe]
;W[gd]
;B[je]
;W[jf]
;B[ke]
;W[hf]
;B[kf]
;W[jg]
;B[jh]
;W[kg]
;B[lg]
;W[ec]
;B[ab]
;W[ia]
;B[ce]C[Not the straight ko, but big success for B anyway. Even small ko threat is enough for him])
(;W[hc]
;B[jd]
;W[gd]
;B[jc]C[Too easy for B]))
(;B[qd]C[3.]
;W[dc]
;B[pq]
;W[co]
;B[od]
;W[qo]
;B[qk]
;W[rq]
;B[ep]
;W[dq]
;B[eq]
;W[dr]
;B[qm]
;W[pp]
;B[oq]
;W[qq]
;B[op]
;W[oo]
;B[no]
;W[on]
;B[nn]
;W[om]
;B[iq]
;W[ce]
;B[jc]
;W[qi]
;B[ok]
;W[oi]
;B[nm]
;W[ol]
;B[nl]
;W[nk]
;B[nj]
;W[pk]
;B[mk]
;W[pj]
;B[dn]
;W[cn]
;B[dm]
;W[gq]
;B[er]
;W[cm]
;B[dl]TR[gq]C[Number 3:
Nakamura Yutaro (black) vs Fujisawa Hosai (white), played in 1960. White to play and use the marked stone.]
;W[ip]LB[il:A]C[The normal invasion line is around A, but not for Fujisawa Hosai, 9p.

He is an expert of invading! He usually played mane Go (mirror go) as White, so he practised invasions in almost every game.]
;B[hq]
;W[hp]
;B[gr]
;W[jp]
;B[im]C[B wants to kill the group, of course]
;W[mp]
;B[np]
;W[jq]
;B[lq]
;W[lr]
;B[mq]
;W[jr]
;B[hr]
;W[gn]
;B[gm]
;W[kq]
;B[hn]
;W[ko]
;B[mr]
;W[jn]
;B[jm]
;W[km]
;B[ln]
;W[ho]
;B[fn]
;W[in]
;B[go]
;W[ms]C[White is alive and winning a lot! A-B-C-D works, so his lower eye cannot be destroyed]
;B[ks]C[Such a desperate attempt by black does not work!]
;W[ls]
;B[js]
;W[ir]
;B[is]
;W[kr]C[Black can't connect!])
(;B[pd]C[2.]
;W[dp]
;B[pp]
;W[dd]
;B[pj]
;W[nc]
;B[pf]
;W[pb]
;B[jp]
;W[qc]
;B[fq]
;W[cn]
;B[me]
;W[qn]
;B[on]
;W[ql]
;B[ol]
;W[rp]
;B[mc]
;W[qq]
;B[nb]
;W[re]
;B[fd]
;W[oq]
;B[ef]
;W[cf]
;B[hi]
;W[ij]
;B[ii]
;W[jj]
;B[hj]
;W[il]
;B[hk]
;W[km]
;B[dc]
;W[cc]
;B[ec]
;W[cb]
;B[ki]
;W[lk]
;B[mj]
;W[dh]
;B[eh]
;W[oc]
;B[ob]
;W[pc]
;B[nd]
;W[di]
;B[ei]
;W[dg]
;B[eg]
;W[fa]C[Number 2:

Takemiya Masaki 9p (black) versus Seo Bong Soo 9p (white).
Date: 01 August 1992.]
(;B[fb]LB[da:A]C[You always have to be careful, when you stop the monkey jump.
Usually this move from the real game is the best way to play, but sometimes it's better to start at A and sacrifice one stone..]
;W[dk]
;B[in]
;W[hl]
;B[fo]
;W[eq]
;B[fr]
;W[gm]
;B[mq]
;W[ea]
;B[ga]
;W[ld]
;B[md]
;W[pi]C[Black is winning this game, so White decided to try deep invasion
In Korean we call it "songbusu" - sharp plan, trying to change the result of the game
]
;B[oj]
;W[ji]
;B[jh]
;W[kh]
;B[li]
;W[gb]
;B[da]
;W[ha]
;B[eb]C[Usually White cannot fight like this. But here it's a great plan, because B has weakpoints inside his moyo]
;W[gd]
;B[fe]
;W[lb]
;B[mb]
;W[jd]C[White got sabaki! Black is in big trouble now]
;B[hc]
;W[gc]
;B[ie]
;W[he]
;B[id]
;W[if]
;B[je]
;W[jf]
;B[kg]
;W[ke]
;B[jc]
;W[kc]
;B[jb]
;W[kb]
;B[kd]
;W[gp]
;B[kf]
;W[fp]C[Ko fight was good enough for White.
He lost some points inside, but got great compensation
White is winning this game now!]
;B[hq]
;W[hp]
;B[ip]
;W[kq]
;B[ir]
;W[er]
;B[jm]
;W[kp]
;B[kn]
;W[mp]
;B[np]
;W[nq]
;B[mr]
;W[ko]
;B[mo]
;W[jl]
;B[lm]
;W[jo]
;B[io]
;W[jn]
;B[kl]
;W[im]
;B[km]
;W[jr]
;B[lp]
;W[gq]
;B[is]
;W[hn]
;B[ks]
;W[qg]
;B[qk]
;W[ca]
;B[db]
;W[ej]
;B[pq]
;W[pr]
;B[qr]
;W[rr]
;B[or]
;W[fj]
;B[ps]
;W[gh]
;B[hg]
;W[fi]
;B[hh]
;W[gg]
;B[hf]
;W[gf]
;B[ge]
;W[hd]
;B[le]
;W[pg]
;B[rm]
;W[rn]
;B[qm]
;W[rs]
;B[og]
;W[hr]
;B[iq]
;W[kk]
;B[gk]
;W[fk]
;B[gr]
;W[qi]
;B[rj]
;W[mk]
;B[qp]
;W[rq]
;B[oi]
;W[mm]
;B[ln]
;W[fs]
;B[hs]
;W[rl]
;B[pm]
;W[sm]
;B[qd]
;W[rd]
;B[qf]
;W[rf]
;B[od]
;W[oa]
;B[na]
;W[pa]
;B[nk]
;W[ri]
;B[gl]
;W[fl]
;B[ml]
;W[rk]
;B[qj]
;W[sj]
;B[qo]
;W[ro]
;B[cd]
;W[bd]
;B[de]
;W[ce]
;B[hb]
;W[es]
;B[gs]
;W[ho]
;B[js]
;W[pn]
;B[pl]
;W[qs]
;B[pr]
;W[po]
;B[oo]
;W[ed]
;B[fc]
;W[qe]
;B[pe]
;W[ll]
;B[nl]
;W[oh]
;B[nh]
;W[ph]
;B[lj]
;W[jk]
;B[ee]
;W[cd])
(;B[da]
;W[db]
;B[eb]
;W[ea]
;B[ga]
(;W[ca]
;B[fb]C[On territory it's exactly the same, so move in the real game can be called a mistake])
(;W[fb]
;B[gb]
;W[ca]
;B[fc]C[White can reduce 1 extra point, but now his connection is gote])))
(;B[qd]C[1.]
;W[dc]
;B[qq]
;W[dq]
;B[oc]
;W[de]
;B[co]
;W[cm]
;B[qj]
;W[cp]
;B[op]
;W[do]
;B[jq]
;W[jc]
;B[jo]
;W[rd]
;B[rc]
;W[dh]
;B[oj]
;W[mc]
;B[kk]C[number 1
Okubo Ichigen (black) vs Fujisawa Hosai (white)]
;W[nn]C[So deep! Another example from Fujisawa Hosai - mane Go expert]
;B[pn]
;W[np]
;B[oq]
;W[ml]
;B[lk]
;W[pm]
;B[om]
;W[jm]
;B[km]
;W[nj]
(;B[lm]C[B has no choice -]
;W[ok]
;B[nm]
;W[pj]
;B[pl]
;W[qi]C[The invasion is successful!])
(;B[nk]
;W[kn]
;B[jn]
;W[mk]
;B[mj]
;W[kl]
;B[lm]
;W[ll]
;B[jl]
;W[jk]
;B[im]
;W[lj]C[Now the double atari works])))
