(;GM[1]FF[4]SZ[19]
GN[White captures 4 stones]
PC[http://senseis.xmp.net/?KyuExercise104/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise104/Solution

White captures 4 stones]
PL[B]

AB[ec][qc][fd][jd][pd][fe][ne][gg][rg][ch][dh][ph][qh][mi][qi][ej][mj][nj][qj][ck][hk][ik][nk][pk][kl][ll][ml][ol][pl][rl][gm][hm][lm][om][in][ln][qn][go][ho][io][jo][lo][no][po][ip][jp][lp][mp][np][pp][rp][hq][jq][lq][oq][pq][qq][kr][mr][ls]
AW[cd][ed][rd][ee][re][of][qf][cg][dg][eg][ng][nh][oh][ni][oi][pi][jj][oj][pj][jk][kk][lk][mk][ok][hl][jl][nl][im][jm][km][nm][pm][qm][rm][cn][jn][kn][nn][on][ko][mo][oo][gp][hp][kp][op][dq][gq][iq][kq][mq][nq][rq][ir][jr][nr][or][pr][qr][rr]

;B[rn]C[B1]MN[1]
;W[qk]C[W2]MN[2]
;B[rk]C[B3]MN[3]
;W[ql]C[W4]MN[4]
;B[sm]C[B5]MN[5]

;
)
