(;GM[1]FF[4]SZ[19]
GN[Mistake 4]
PC[https://senseis.xmp.net/?DietersMistakesIn2021/SOlution4]AP[GoWiki:2009]
DT[2022-01-22]
C[Diagram from https://senseis.xmp.net/?DietersMistakesIn2021/SOlution4

Mistake 4]
PL[B]

AB[ob][pb][qb][rb][bc][dc][mc][nc][pc][sc][bd][dd][gd][md][qd][rd][ce][de][je][ke][ne][pe][jf][pf][hg][ig][pg][eh][mh][ph][ei][gi][oi][pi][qi][bj][cj][gj][pj][ck][gk][kk][dl][gl][jl][jm][jn][ko][kp][lp][dq][gq][lq][mq][oq][pq][qq][rq][br][cr][nr]
AW[cc][oc][cd][ld][nd][od][pd][be][le][me][oe][qe][re][af][cf][df][ff][kf][lf][of][qf][bg][jg][og][qg][fh][gh][ih][jh][hi][ni][ri][hj][nj][oj][qj][bk][hk][jk][pk][qk][al][cl][kl][bm][cm][km][kn][mn][do][jo][lo][cp][mp][np][op][pp][qp][rp][cq][nq]
LB[lg:a][hh:b]

;B[kg]C[B1]MN[1]
;W[he]C[W2]MN[2]

;LB[lg:a][hh:b]
)
