(;GM[1]FF[4]SZ[19]
GN[Failure 2.]
PC[http://senseis.xmp.net/?RTGProblem11/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RTGProblem11/Solution

Failure 2.]
PL[B]

AB[ob][pb][qb][nc][pc][nd][od][pd]
AW[pa][mb][nb][rb][mc][qc][md][qd][me][ne][pe][qe][of]

;B[oa]C[B1]MN[1]
;W[qa]C[W2]MN[2]
;B[rc]C[B3]MN[3]
;W[sa]C[W4]MN[4]

;
)
