Taken from a Game between Honinbo Shuwa (black) and Inoue Gennan Inseki (white)
Played on 14th, 15th ,16th May, 1842
(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[19]
ST[3]
;C[White is one point behind. What's his best chance for victory?]
PL[W]
LB[yy:1][yy:0]AB[bb][bd][bi][ca][cc][cd][ch][ci][cj][cl][cm][cp][cr][dc][dg][dk][dp][dr][eb][ec][ed][ee][ef][eg][eh][ei][ek][el][em][eq][fa][fc][fi][fk][fn][fq][gb][gi][gl][gn][gp][gr][hd][he][hf][hg][hi][ho][hq][ib][ic][ie][il][in][ip][ir][jg][jh][ji][jm][jr][kc][ke][kf][ki][kk][kn][lb][ld][le][lj][lk][ll][lm][lo][me][mn][mp][ne][np][nq][ns][od][oe][of][og][ok][oq][or][pj][pk][pl][pm][pn][pq][qd][qe][qi][qk][re][rf][rg][rh][rj][si]
AW[ab][ac][ad][af][ag][ai][bc][bf][bh][bk][bm][bp][br][ce][cf][cg][ck][co][cq][dd][de][dh][di][dj][dl][dm][dn][do][ej][eo][fe][ff][fg][fh][fj][fl][fo][gc][gd][gj][hb][hc][hj][id][if][ij][jb][jc][jd][je][jf][jj][jn][jo][jp][jq][kd][kg][kh][kj][ko][kq][kr][lc][lf][li][lp][lr][mb][mc][md][mf][mh][mj][mk][mq][mr][nc][nd][nk][nm][nn][nr][oc][oi][oj][ol][on][oo][op][pc][pf][ph][pi][qc][qf][qg][qh][rb][rd][sc]
(;W[ps]
MN[1]
;B[os]
C[Right! This is the only move that stirs
up some trouble.]
(;W[qo]
;B[po]
;W[qq]
;B[pp]
;W[qr]
C[RIGHT
It is not easy to deal with this group.
See problem 2599.]
)(;W[qq]
C[Another, more complicated option
exists. See also problems 2598 and 2599.]
))(;W[qo]
;B[po]
(;W[qp]
;B[pp]
;W[qq]
;B[qr]
;W[rr]
;B[rs]
C[White doesn't achieve anything.]
)(;W[qq]
;B[pp]
(;W[qp]
;B[qr]
;W[rr]
;B[rs]
C[White doesn't achieve anything.]
)(;W[qr]
;B[qp]
;W[rp]
;B[ro]
(;W[sq]
;B[rr]
C[White doesn't achieve anything.]
)(;W[so]
;B[rq]
;W[rn]
;B[rr]
C[White doesn't achieve anything.]
))))(;W[qp]
;B[pp]
;W[qo]
;B[po]
C[White doesn't achieve anything.]
))
