(;GM[1]FF[4]SZ[19]
GN[Problem 142 Answer: &#40657;&#20808; &#21213; B5 at B1.]
PC[http://senseis.xmp.net/?MaedaTsumego/Answer142]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?MaedaTsumego/Answer142

Problem 142 Answer: &#40657;&#20808; &#21213; B5 at B1.]
PL[B]

AB[ah][bh][ch][di][dj][dk][cl][cm][an][bn][cn]
AW[bf][dg][dh][ai][bi][ci][cj][ck][bl][bm]

;B[bk]C[B1]MN[1]
;W[ak]C[W2]MN[2]
;B[bj]C[B3]MN[3]
;W[aj]C[W4]MN[4]
;B[bk]C[B5]MN[5]
;W[cg]C[W6]MN[6]
;B[al]C[B7]MN[7]

;
)
