(;GM[1]FF[4]SZ[19]
GN[Attempt]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem219/Attempts]AP[GoWiki:2009]
DT[2023-02-07]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem219/Attempts

Attempt]
PL[W]

AB[cn][dn][do][bp][cp][dp][aq][dq][eq][hq][jq][cr][dr][er][gr][ir][jr][cs][es][fs][gs][is][js]
AW[bl][cl][am][cm][em][bn][fn][ao][bo][co][ap][fp][gp][hp][ip][jp][kp][fq][gq][kq][fr][hr][kr][ks]

;W[bq]C[W21]MN[21]

;
)
