(;GM[1]FF[4]SZ[19]
GN[Double big L+0.5 Group]
PC[https://senseis.xmp.net/?BQM599]AP[GoWiki:2009]
DT[2020-01-17]
C[Diagram from https://senseis.xmp.net/?BQM599

Double big L+0.5 Group]
PL[W]

AB[cb][cc][bd][cd]
AW[fb][dc][ec][fc][dd][ce][de][cf][bg][cg]

;W[bb]C[W1]MN[1]
;B[ba]C[B2]MN[2]
;W[ab]C[W3]MN[3]
;B[db]C[B4]MN[4]
;W[da]C[W5]MN[5]
;B[be]C[B6]MN[6]
;W[ae]C[W7]MN[7]

;
)
