(;GM[1]FF[4]SZ[19]
GN[Straightforward?]
PC[http://senseis.xmp.net/?CapturingRaceExercise30/Attempts]AP[GoWiki:2009]
DT[2009-05-19]
C[Diagram from http://senseis.xmp.net/?CapturingRaceExercise30/Attempts

Straightforward?]
PL[B]

AB[ga][ha][ia][ja][ab][gb][ib][pb][bc][gc][ic][jc][mc][pc][qc][sc][bd][cd][dd][id][qd][rd][sd][ce][he][ie][je][le][qe][bf][ff][jf][kf][lf][mf][qf][bg][eg][ig][mg][og][qg][bh][ch][dh][eh][ih][jh][kh][lh][nh][oh][ph][qh][di][fi][ii][ji][li][pi][qi][ri][cj][fj][gj][hj][lj][mj][nj][rj][sj][lk][nk][sk][fl][gl][kl][em][gm][hm][im][jm][km][dn][gn][kn][ln][co][do][io][jo][lo][dp][rp][dq][hq][iq][lq][qq][cr][er][fr][gr][ir][kr][lr][mr][pr][js][ks]
AW[ba][fa][ka][pa][qa][bb][eb][fb][hb][jb][kb][ob][qb][rb][sb][cc][dc][fc][hc][kc][oc][rc][ed][gd][hd][jd][kd][ld][md][pd][de][ee][ge][ke][me][pe][cf][df][ef][hf][if][nf][of][pf][cg][dg][fg][gg][hg][jg][ng][pg][fh][hh][mh][gi][hi][ki][mi][ni][oi][ij][kj][oj][pj][qj][fk][kk][mk][ok][qk][rk][il][ll][ml][nl][sl][fm][lm][rm][en][fn][hn][in][mn][qn][go][ho][mo][cp][fp][hp][ip][jp][kp][lp][pp][cq][eq][fq][gq][jq][kq][mq][nq][pq][jr][nr][or][rr][ms]

;B[ac]C[B1]MN[1]
;W[kg]C[W2]MN[2]
;B[lg]C[B3]MN[3]
;W[ik]C[W4]MN[4]

;
)
