(;GM[1]FF[4]SZ[19]
GN[White reinforces with choshi]
PC[http://senseis.xmp.net/?ChoshiExamples]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ChoshiExamples

White reinforces with choshi]
PL[W]

AB[fc][gc][pc][ed][ld][pd][de][fe][qe][df][pf][qf][rf][dg][kg][qg][kh][mh][li][ni][ri][kj][oj][jk][qk][nl][ql][jm][km][lm][mm][qm][cn][dn][qn][do][mo][ro][dp][fp][lp][mp][np][op][pp][qp][rp][eq][lq][rq][cr][dr]
AW[eb][fb][ec][kc][nc][cd][dd][ce][cf][lf][nf][og][pg][rg][jh][qh][ji][ki][pi][lj][qj][nk][ll][ml][pl][cm][nm][om][rm][bn][ln][mn][pn][co][ho][jo][lo][no][bp][cp][cq][dq][gq][jq][nq][pq][qq][sq][nr][rr]

;W[kd]C[W1]MN[1]
;B[mj]C[B2]MN[2]
;W[lk]C[W3]MN[3]
;B[hm]C[B4]MN[4]

;
)
