(;GM[1]FF[4]SZ[19]
GN[1st sequence]
PC[http://senseis.xmp.net/?StrangeThingsHappenAtTheOneTwoPoint/Problem4Attempts]AP[GoWiki:2009]
DT[2018-05-26]
C[Diagram from http://senseis.xmp.net/?StrangeThingsHappenAtTheOneTwoPoint/Problem4Attempts

1st sequence]
PL[B]

AB[bn][cn][dn][dp][ep][eq][gq][cr][er]
AW[co][cp][bq][cq][dq][dr]

;B[br]C[B1]MN[1]
;W[ar]C[W2]MN[2]
;B[bs]C[B3]MN[3]
;W[aq]C[W4]MN[4]
;B[bo]C[B5]MN[5]

;
)
