(;GM[1]FF[4]SZ[19]
GN[(white can't block on this side)]
PC[http://senseis.xmp.net/?TsumegoFromGames68/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TsumegoFromGames68/Attempts

(white can't block on this side)]
PL[B]

AB[al][bl][cl][dl][am][dm][dn][dp][ep][fp][fq][gr][hr][ir][is]
AW[bm][cm][an][cn][co][cp][dq][eq][er][fr][fs][gs][hs]
CR[am][an]

;B[ao]C[B1]MN[1]
;W[bn]C[W2]MN[2]
;B[cq]C[B3]MN[3]
;W[bq]C[W4]MN[4]
;B[cr]C[B5]MN[5]
;W[br]C[W6]MN[6]
;B[dr]C[B7]MN[7]

;CR[am][an]
)
