(;GM[1]FF[4]SZ[19]
GN[Bad for white (can't play at a)]
PC[http://senseis.xmp.net/?OD1PMay23Problem/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OD1PMay23Problem/Solution

Bad for white (can't play at a)]
PL[B]

AB[qa][qb][qc][rc][qe][rf][sg]
AW[pa][ra][pb][pc][pd][pe][se][pf][qg][rg][rh][sh]
LB[re:a]

;B[rb]C[B1]MN[1]
;W[sd]C[W2]MN[2]
;B[sc]C[B3]MN[3]
;W[sa]C[W4]MN[4]
;B[sf]C[B5]MN[5]

;LB[re:a]
)
