(;GM[1]FF[4]SZ[19]
GN[Solution 2.]
PC[http://senseis.xmp.net/?BeginnerExercise130/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise130/Solution

Solution 2.]
PL[W]

AB[dp][ep][fp][cq][dq][fq][cr][gr][hr][ir][bs][fs]
AW[dn][fn][co][go][ho][bp][bq][eq][gq][hq][iq][kq][br][dr][er][fr][jr]
LB[hs:a]

;W[is]C[W1]MN[1]
;B[ds]C[B2]MN[2]
;W[js]C[W3]MN[3]
;B[es]C[B4]MN[4]

;LB[hs:a]
)
