(;GM[1]FF[4]SZ[19]
GN[Black to play and save the top group]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem98]AP[GoWiki:2009]
DT[2023-02-01]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem98

Black to play and save the top group]
PL[B]

AB[ga][ha][ka][la][bb][ib][lb][nb][qb][ic][lc][bd][cd][dd][fd][gd][kd][ld][qd][rd][be][de][ie][je][ke][pe][re][cf][of][pf][bg][ig][lg][mg][ng][og][ih][oh][qh][jj][dk][qk]
AW[ba][fa][ma][na][sa][eb][gb][hb][jb][kb][mb][rb][bc][cc][ec][hc][mc][nc][pc][sc][hd][pd][le][ne][qe][df][hf][if][kf][lf][nf][dg][fg][hg][rg][bh][ch][mh][nh][ki][oi][cj][ck][pk][rk][ql]
CR[ka][la][ib][lb][ic][lc][kd][ld][ie][je][ke]


;CR[ka][la][ib][lb][ic][lc][kd][ld][ie][je][ke]
)
