(;GM[1]FF[4]SZ[19]
GN[Second-line throw-in first]
PC[https://senseis.xmp.net/?GokyoShumyoSection5Problem12/Solution]AP[GoWiki:2009]
DT[2022-12-27]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection5Problem12/Solution

Second-line throw-in first]
PL[B]

AB[ba][bb][hb][kb][cc][fc][gc][hc][ic][jc][kc][cd][fd][de][ee]
AW[ha][ka][cb][db][fb][gb][ib][jb][lb][ec][lc][ed][kd][fe][ge][ie]
LB[da:a][dc:b]

;B[eb]C[B1]MN[1]
;W[ea]C[W2]MN[2]
;B[ga]C[B3]MN[3]
;W[fa]C[W4]MN[4]
;B[ca]C[B5]MN[5]

;LB[da:a][dc:b]
)
