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

Weakness 1]
PL[W]

AB[hi][ji][hj][kj]
AW[ih]
CR[kj]
LB[jj:a]

;W[jk]C[W1]MN[1]

;CR[kj]
LB[jj:a]
)
