(;GM[1]FF[4]SZ[19]
GN[White to live.]
PC[http://senseis.xmp.net/?Twirl/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Twirl/Solution

White to live.]
PL[W]

AB[bc][cc][ec][hc][dd][cf][ci]
AW[cb][db][dc]

;W[ed]C[W1]MN[1]
;B[eb]C[B2]MN[2]
;W[cd]C[W3]MN[3]
;B[de]C[B4]MN[4]
;W[fc]C[W5]MN[5]
;B[fb]C[B6]MN[6]
;W[gb]C[W7]MN[7]
;B[gc]C[B8]MN[8]
;W[ea]C[W9]MN[9]
;B[fd]C[B10]MN[10]

;
)
