(;GM[1]FF[4]SZ[19]
GN[Ladder breaker]
PC[http://senseis.xmp.net/?BQM349]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM349

Ladder breaker]
PL[B]

AB[pd][co][ep][fp][pp][fq]
AW[dc][qf][bp][cp][dq][eq]
LB[fn:a]

;B[bo]C[B1]MN[1]
;W[oe]C[W2]MN[2]
;B[dp]C[B3]MN[3]
;W[od]C[W4]MN[4]

;LB[fn:a]
)
