(;GM[1]FF[4]SZ[19]
GN[Main line]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem43/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem43/Solution

Main line]
PL[B]

AB[kb][ob][lc][mc][nc]
AW[qb][ic][jc][kc][oc][pc][ld][md][nd]

;B[mb]C[B1]MN[1]
;W[la]C[W2]MN[2]
;B[ma]C[B3]MN[3]

;
)
