(;GM[1]FF[4]SZ[19]
GN[Mistake 267]
PC[https://senseis.xmp.net/?DieterVerhofstadt/2021ABCOfMistakes]AP[GoWiki:2009]
DT[2021-10-11]
C[Diagram from https://senseis.xmp.net/?DieterVerhofstadt/2021ABCOfMistakes

Mistake 267]
PL[W]

AB[db][qb][dc][fc][jc][lc][mc][nc][qc][ed][id][ld][pd][ee][ne][pe][qe][kf][nf][gg][kg][lg][ng][hh][ih][kh][oh][ni][oi][pi][jj][kj][mj][nj][pj][lk][ok][ll][ml][jm][nm][om][pm][do][ko][lo][dp][kp][dq][kq][mq][nq][pq][qq][rq][jr][nr]
AW[cb][cc][rc][dd][kd][md][qd][rd][de][he][ie][je][ke][le][re][df][lf][mf][of][qf][hg][mg][og][lh][mh][nh][ph][qh][li][qi][lj][qj][kk][mk][pk][qk][il][kl][cm][km][lm][bn][mn][on][mo][cp][lp][mp][op][pp][qp][rp][cq][lq][kr][mr]
LB[ff:a]

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

;LB[ff:a]
)
