(;GM[1]FF[4]SZ[19]
GN[White to play]
PC[https://senseis.xmp.net/?DietersMistakesIn2021/Problem151]AP[GoWiki:2009]
DT[2022-03-08]
C[Diagram from https://senseis.xmp.net/?DietersMistakesIn2021/Problem151

White to play]
PL[W]

AB[gb][ib][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][dh][fh][gh][mh][nh][qh][ci][ei][gi][qi][bj][cj][ej][gj][pj][ck][dk][hk][pk][dl][el][gl][hl][jl][pl][im][pm][jn][nn][pn][qn][ko][lo][mo][oo][po][kp][mp][kq][pq][qq][kr][rr]
AW[na][pa][cb][eb][fb][jb][kb][mb][ob][bc][dc][kc][nc][pc][qc][rc][bd][cd][kd][ae][de][me][cf][df][mf][pf][mg][og][rg][rh][fi][ri][fj][hj][qj][bk][ek][fk][gk][qk][bl][cl][fl][ql][dm][em][fm][gm][hm][qm][in][rn][io][no][qo][cp][lp][np][pp][qp][rp][dq][fq][hq][lq][mq][nq][rq][lr][or]
LB[ir:a]

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

;LB[ir:a]
)
