Go (Baduk, Weiqi) problems with solutions

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Go art problem 006

6 Black to play Make life in the upper right corner (a shicho problem running across the whole board; composed by Uchida Yuseki)

(;GM[1]FF[4]SZ[19]AP[goproblems.ru]
AB[ia][ma][ra][ib][mb][rb][bc][dc][ic][kc][rc][ad][bd][id][ld][pd][rd][sd][ce][ie][me][qe][re][cf][nf][of][pf][cg][dg][sg][bi][ei][bl][cl][mn][qn][cp][fp][mp][hq][iq][pq][ar][dr][er][lr]
AW[ca][ea][ja][la][oa][ab][jb][lb][qb][sb][cc][jc][lc][mc][qc][cd][jd][nd][qd][ae][be][ne][oe][pe][se][bf][df][ff][qf][rf][sf][bg][eg][qg][ah][bh][fh][qh][rh][ci][ri][si][aj][am][sm][lo][no][so][ap][qp][dq][eq][fr][gr][hr][ir][mr][nr][or][bs][ks][qs][rs]
C[6
Black to play
Make life in the upper right corner
(a shicho problem running across the whole board; composed by Uchida Yuseki)
]
;B[pb];W[pc];B[oc];W[od];B[qa];W[pd];B[nc];W[md];B[kb];W[ka];B[kd];W[je]
;B[jf];W[ke];B[le];W[kf];B[kg];W[lf];B[mf];W[lg];B[lh];W[mg];B[ng];W[mh]
;B[mi];W[nh];B[oh];W[ni];B[nj];W[oi];B[pi];W[oj];B[ok];W[pj];B[qj];W[pk]
;B[pl];W[qk];B[rk];W[ql]
(;B[qm];W[rl];B[rm];W[sl];B[sn];W[rn];B[sk];W[sn]
(;B[ro];W[sp];B[rp];W[sq];B[rq];W[sr];B[rr];W[ss];B[ps];W[qr];B[pr];W[qq]
;B[qo];W[pp];B[op];W[po];B[oo];W[pn];B[pm];W[on];B[nn];W[om];B[ol];W[nm]
;B[mm];W[nl];B[nk];W[ml];B[ll];W[mk];B[mj];W[lk];B[kk];W[lj];B[li];W[kj]
;B[jj];W[ki];B[kh];W[ji];B[ii];W[jh];B[jg];W[ih];B[hh];W[ig];B[if];W[hg]
;B[gg];W[hf];B[gf];W[he];B[ge];W[hd];B[hc];W[gd];B[fd];W[gc];B[gb];W[fc]
;B[ec];W[fb];B[eb];W[fa];B[da];W[db];B[ga];W[da];B[ba];W[cb];B[bb];W[dd]
;B[ed];W[de];B[ef];W[ee];B[fe];W[ef];B[eh];W[fg];B[gh];W[fi];B[fj];W[gi]
;B[hi];W[gj];B[gk];W[hj];B[ij];W[hk];B[hl];W[ik];B[jk];W[il];B[im];W[jl]
;B[kl];W[jm];B[jn];W[km];B[lm];W[kn];B[ko];W[ln];B[mo];W[lp];B[kp];W[lq]
;B[mq];W[kq];B[kr];W[jq];B[jr];W[jp];B[jo];W[ip];B[hp];W[io];B[in];W[ho]
;B[go];W[hn];B[hm];W[gn];B[fn];W[gm];B[gl];W[fm];B[em];W[fl];B[fk];W[el]
;B[dl];W[ek];B[ej];W[dk];B[dj];W[ck];B[cj];W[bk];B[bj];W[ak]
(;B[ai];W[al];B[an];W[bm];B[bn];W[cm];B[dm];W[cn];B[co];W[dn];B[en];W[do]
;B[dp];W[eo];B[fo];W[ep];B[fq];W[cq];B[bq];W[cr];B[br];W[cs];B[as];W[ds]
;B[es])
(;B[al];W[ai]))
(;B[sp];W[ro]
(;B[qo];W[rp])
(;B[rp];W[qo])))
(;B[rl];W[qm]
(;B[pm];W[rm])
(;B[rm])))

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Go art problem 007 |>
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