(;GM[1]FF[4]SZ[19]
GN[Best]
PC[https://senseis.xmp.net/?DietersMistakesIn2021/Solution81]AP[GoWiki:2009]
DT[2022-02-04]
C[Diagram from https://senseis.xmp.net/?DietersMistakesIn2021/Solution81

Best]
PL[B]

AB[hb][jb][nb][ob][bc][dc][hc][lc][oc][bd][cd][dd][hd][kd][pd][qd][oe][lf][mf][nf][pf][dg][og][pg][kh][rh][ki][ri][dj][lj][dk][kl][ml][ol][cm][dm][om][qm][cn][en][fn][hn][jn][ln][on][qn][fp][eq][dr][fr]
AW[bb][cb][db][cc][ec][gc][jc][nc][gd][nd][od][he][ie][ke][le][ne][kf][ig][kg][lg][mg][ng][fi][ji][mi][oi][qi][jj][ek][ok][el][gl][il][nl][pl][ql][em][dn][co][do][dp][ip][kp][pp][rp][bq][dq][nq][cr]
LB[qj:a]

;B[nk]C[B1]MN[1]
;W[nj]C[W2]MN[2]
;B[mk]C[B3]MN[3]

;LB[qj:a]
)
