(;GM[1]FF[4]SZ[19]
GN[black prevents two eyes (W25 @ BB)]
PC[http://senseis.xmp.net/?SewingMachineSequence]AP[GoWiki:2009]
DT[2011-10-31]
C[Diagram from http://senseis.xmp.net/?SewingMachineSequence

black prevents two eyes (W25 @ BB)]
PL[W]

AB[eb][cc][dc][cd][gd][ce][ee][fe][ge][df][dg]
AW[db][fb][ec][pc][dd][ed][fd][de][ef][eg][eh]
CR[eb]

;W[ea]C[W21]MN[21]
;B[gc]C[B22]MN[22]
;W[cb]C[W23]MN[23]
;B[fc]C[B24]MN[24]
;B[bb]C[B26]MN[26]
;W[gb]C[W27]MN[27]
;B[hb]C[B28]MN[28]
;W[ib]C[W29]MN[29]
;B[hc]C[B30]MN[30]

;CR[eb]
)
