(;GM[1]FF[4]SZ[19]
GN[Black erasure]
PC[http://senseis.xmp.net/?ErasureOrInvasion/ProPlay2]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ErasureOrInvasion/ProPlay2

Black erasure]
PL[B]

AB[dc][ec][kc][nc][cd][fd][pd][ee][fe][cg][ci][di][cj][ck][pp][kq][nq]
AW[gb][fc][ed][gd][ge][qf][dh][eh][ei][dj][pj][el][cm][qn][cp][ep][iq]
LB[pm:a]

;B[pk]C[B1]MN[1]
;W[qk]C[W2]MN[2]
;B[ql]C[B3]MN[3]
;W[qj]C[W4]MN[4]
;B[pl]C[B5]MN[5]
;W[on]C[W6]MN[6]
;B[nk]C[B7]MN[7]

;LB[pm:a]
)
