(;GM[1]FF[4]SZ[19]
GN[Failed second line connection (4-stones)]
PC[https://senseis.xmp.net/?SecondLineConnection]AP[GoWiki:2009]
DT[2025-04-07]
C[Diagram from https://senseis.xmp.net/?SecondLineConnection

Failed second line connection (4-stones)]
PL[B]

AB[ee][cf][df][dg][dh][di][cj][dj][dk][dl][dm][dn][co][do][dp][dq][dr][ds]
AW[cd][ce][de][bf][cg][ch][ci][bj][ck][cl][cm][cn][bo][cp][cq][cr][cs]

;B[bi]C[B1]MN[1]
;W[bh]C[W2]MN[2]
;B[bk]C[B3]MN[3]
;W[ai]C[W4]MN[4]
;B[bn]C[B5]MN[5]
;W[bm]C[W6]MN[6]
;B[bp]C[B7]MN[7]
;W[an]C[W8]MN[8]
;B[bq]C[B9]MN[9]

;
)
