(;GM[1]FF[4]SZ[19]
GN[Mistake 291]
PC[https://senseis.xmp.net/?DieterVerhofstadt/2021ABCOfMistakes]AP[GoWiki:2009]
DT[2021-09-24]
C[Diagram from https://senseis.xmp.net/?DieterVerhofstadt/2021ABCOfMistakes

Mistake 291]
PL[B]

AB[nb][mc][oc][od][pd][de][cf][df][pf][qf][rf][qi][cj][hk][ik][hl][kl][ml][fm][im][jm][lm][en][kn][ln][go][ko][ep][lp][mp][np][eq][hq][pq][qq][mr][nr]
AW[ob][pb][dc][fc][pc][qc][cd][ce][qe][re][kk][lk][pk][cl][fl][gl][il][ll][hm][mm][nm][fn][hn][do][io][lo][mo][no][qo][cp][jp][kp][op][pp][dq][lq]

;B[el]C[B1]MN[1]
;W[jk]C[W2]MN[2]
;B[jl]C[B3]MN[3]
;W[gm]C[W4]MN[4]
;B[em]C[B5]MN[5]
;W[eo]C[W6]MN[6]

;
)
