(;GM[1]FF[4]SZ[19]
GN[Best]
PC[https://senseis.xmp.net/?DietersMistakesIn2021/solution150]AP[GoWiki:2009]
DT[2022-03-08]
C[Diagram from https://senseis.xmp.net/?DietersMistakesIn2021/solution150

Best]
PL[W]

AB[gb][pb][qb][rb][fc][gc][jc][oc][dd][ed][jd][od][pd][qd][rd][be][ce][je][bf][lf][qf][rf][bg][cg][dg][eg][lg][qg][fh][gh][mh][nh][qh][ci][ei][gi][qi][bj][cj][gj][pj][ck][dk][hk][pk][gl][hl][jl][pl][im][pm][jn][nn][pn][qn][ko][lo][mo][kp][mp][kq]
AW[na][pa][cb][eb][fb][mb][ob][bc][dc][kc][nc][pc][qc][rc][bd][cd][kd][ae][de][me][cf][df][mf][pf][mg][og][rg][eh][rh][di][fi][ri][dj][fj][hj][qj][bk][ek][fk][gk][qk][bl][cl][ql][dm][fm][gm][hm][qm][in][rn][no][qo][cp][lp][np][pp][fq][hq][lq][mq][nq]

;W[io]C[W1]MN[1]

;
)
