(;GM[1]FF[4]SZ[19]
GN[Threat]
PC[http://senseis.xmp.net/?SnapbackProblem28]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SnapbackProblem28

Threat]
PL[B]

AB[le][me][ne][kf][of][pg][jh][oh][ph][qh][ri][kj][lj][mj][nj][oj][rj][pm][pn]
AW[pe][re][pf][mg][ng][og][qg][rg][rh][mi][qi][qj][pk][rk][ml][ol]
LB[pj:c][sj:b][qk:a]

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

;LB[pj:c][sj:b][qk:a]
)
