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

Exercise 1: Solution]
PL[W]

AB[ea][ab][bb][cb][db]
AW[eb][bc][cc][dc][ec][be]
CR[ea]
LB[fb:a]

;W[gb]C[W1]MN[1]
;B[ga]C[B2]MN[2]
;W[ha]C[W3]MN[3]
;B[fa]C[B4]MN[4]
;W[hb]C[W5]MN[5]

;CR[ea]
LB[fb:a]
)
