(;GM[1]FF[4]SZ[19]
GN[The threat]
PC[https://senseis.xmp.net/?ChrisHayashida/GoBlog]AP[GoWiki:2009]
DT[2020-07-31]
C[Diagram from https://senseis.xmp.net/?ChrisHayashida/GoBlog

The threat]
PL[B]

AB[ka][jb][lb][nb][kc][mc][nc][qc][kd][sh][si][nj][nk][ok][pk][qk][rk][ol][mm][nm][qm][mn][qn][mo][oo][po][np][op][nq][nr]
AW[mb][pb][lc][pc][ld][pd][ke][me][lf][pf][sg][rh][li][qi][oj][pj][kk][mk][pl][ql][rl][om][pm][nn][on][pn][rn][no][qo][pp][rp][oq][pq][qq]
CR[qc]

;B[rg]C[B1]MN[1]

;CR[qc]
)
