(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[https://senseis.xmp.net/?GokyoShumyoSection7Problem12/Solution]AP[GoWiki:2009]
DT[2023-01-26]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection7Problem12/Solution

Variation]
PL[W]

AB[ib][nb][ob][hc][mc][nc][kd][he][ke][me][kf][hg][mg][og][ih][ji][mi][kj][lj][oj][nk]
AW[lb][mb][pb][jc][kc][lc][oc][pc][jd][je][oe][jf][pf][jg][kg][pg][oh][ph][ki]
LB[md:a][mf:b]

;W[mh]C[W1]MN[1]
;B[lh]C[B2]MN[2]
;W[lg]C[W3]MN[3]
;B[nh]C[B4]MN[4]
;W[ne]C[W5]MN[5]

;LB[md:a][mf:b]
)
