(;GM[1]FF[4]SZ[19]
GN[If B4 at W5 (B2 at "a")]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem63/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem63/Solution

If B4 at W5 (B2 at "a")]
PL[W]

AB[ib][qb][ic][qc][jd][kd][od][pd][me][ne]
AW[kb][ob][pb][kc][lc][mc][nc]
LB[ma:a]

;W[la]C[W1]MN[1]
;W[ja]C[W3]MN[3]
;B[jb]C[B4]MN[4]
;W[oa]C[W5]MN[5]
;B[mb]C[B6]MN[6]

;LB[ma:a]
)
