(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[19]
ST[3]
PL[B]
;AB[ak][bb][bc][cb][ck][cl][cp][db][dc][dj][dm][dp][ea][eb][ej][ek][el][ep][eq][fc][ff][fh][fj][fn][fo][fp][fr][gd][ge][gj][gm][gp][hd][hf][hg][hj][hp][hq][il][ip][jc][jf][jj][jp][ke][kk][ko][kq][le][ll][lo][me][mo][mp][nd][ne][nf][nl][nm][nn][oa][ob][oe][og][om][pg][pj][pk][pl][qc][qd][qg][ql][qm][qp][qr][rf][rn][ro][rq][rr]
AW[ai][bd][bh][bj][bp][cc][cd][ch][cj][cm][cn][co][cq][dd][di][dq][dr][ec][ed][ei][em][en][eo][er][fb][fi][fm][fq][gb][gh][gq][gr][hc][he][hi][hl][hr][ic][id][ie][if][iq][je][jh][jq][kc][kd][kp][lm][lp][lq][mb][mf][mg][mn][mq][nb][ng][nj][no][nq][of][oh][on][op][pd][pe][ph][pi][pm][pn][pq][pr][qj][qk][qn][qq][rh][rl][rm]
C[How did Go Seigen save his group around G15?]
(;B[ih]
MN[1]
;W[ii]
(;B[ig]
;W[jg]
(;B[ji]
;W[fg]
;B[kf]
LB[kf:7][kf:7][il:A][kf:7][kf:7]C[Can you imagine that Go Seigen read out all of this when he played A?]
;W[ij]
;B[ik]
;W[hh]
;B[gf]
C[RIGHT
Next white played at A but what would
happen if he had played at B instead?
(See next problem)
]
LB[gf:11][mk:A][kh:B])(;B[gi]
;W[hh]
;B[ji]
;W[fg]
))(;B[jg]
;W[ig]
;B[hh]
;W[gi]
;B[ji]
;W[kh]
)(;B[gi]
;W[hh]
;B[ig]
;W[jg]
;B[ji]
;W[fg]
))(;B[ig]
;W[jg]
(;B[ii]
;W[ih]
;B[hh]
;W[gi]
;B[kf]
;W[ji]
;B[ij]
;W[lh]
)(;B[gi]
;W[hh]
;B[ih]
;W[ii]
;B[ji]
;W[fg]
;B[gf]
;W[kf]
))(;B[hh]
MN[1]
;W[gi]
))