(;GM[1]FF[4]SZ[19]
GN[4-5 joseki]
PC[http://senseis.xmp.net/?LadderStrategy/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LadderStrategy/Discussion

4-5 joseki]
PL[B]

AB[de]
AW[dc]
LB[cd:b][fd:a]

;B[ec]C[B1]MN[1]
;W[eb]C[W2]MN[2]
;B[ed]C[B3]MN[3]
;W[fc]C[W4]MN[4]
;B[db]C[B5]MN[5]
;W[cb]C[W6]MN[6]
;B[fb]C[B7]MN[7]
;W[da]C[W8]MN[8]
;B[gc]C[B9]MN[9]

;LB[cd:b][fd:a]
)
