(;GM[1]FF[4]AP[Sabaki:0.52.2]SZ[19]CA[UTF-8]AW[rr][or][nr][mr][oq][pp][qp][qq][ro][rn]AB[qr][pr][pq][lr][lq][mq][nq][op][oo][po][qo]C[page 3 problem 1

Black to play and rescue three stones.]GN[3 problem 1]SO[bgj 203](;B[os]C[Claerly if Black just fills liberties then White is one liberty ahead.];W[qs])(;B[rq]C[So using the corner threat is the way to go.];W[rp];B[rs];W[sq];B[os]C[Now Black seems to have an advantage.];W[ps]C[This move is dangerous for Black.];B[qs];W[ss];B[sr]C[It is a Ko with White to find the first Ko threat.]))(;GM[1]FF[4]AP[Sabaki:0.52.2]SZ[19]CA[UTF-8]AW[rq][qp][pp][oq][lq][oo][on]AB[op][np][nq][po][qo][rp]C[page 5
problem 2

Black to play and capture some white stones.]GN[5 problem 2]SO[bgj 203](;B[pq]C[If Black plays this way nothing works.];W[qq];B[pr];W[ro])(;B[qq]C[This is the standard way to play in this shape.];W[pq];B[or]C[Now Black can squeeze.](;W[qr];B[pr];W[qq];B[ro]C[After connecting here, White is not alive in the corner and the Black stones on the outside are currently safe from capture.])(;W[pr]C[This is no good.];B[qr])))(;GM[1]FF[4]AP[Sabaki:0.52.2]SZ[19]CA[UTF-8]C[page 11
problem 3

Black to play and live.]AB[rr][rq][qp][pq][pr][or]AW[lr][nr][nq][pp][po][qq][rp][ro][oq]GN[11 problem 3]SO[bgj 203](;B[sq]C[Black can try to maximise the living space by playing here.];W[os];B[ps];W[ss]C[But this play kills.](;B[qr];W[rs])(;B[rs];W[qr];B[qs];W[qq]))(;B[os]C[Black must maximise the space by playing this side.];W[sq];B[sr](;W[qr];B[qs];W[qq]C[Alive])(;W[qs]C[This looks like an eye-preventing move.];B[rs];W[qr];B[ps];W[qq];B[qr]C[Black still lives])))(;GM[1]FF[4]SZ[19]AP[Sabaki:0.52.2]CA[UTF-8]GN[12 tsumego advice part ten problem 1]DT[2020-11-24]KM[-7.5]RU[Simple]AB[co:cq][bp]AW[bn:dn][bo][do:dq][fq]AE[bb:bd][eb:ec][lb:ld][nb:ob][rb:rd][cc][hc][md:qd][sd][he][qe][op][qp][eq][nq:ns][pq:pr][sq][ar][fr:hr][qr:rr][cs][es][rs]PL[B]C[page 12
tsumego advice page 10

Black to play
This position is a variation on Problem 1 in Part Eight in BGJ 201.]SO[bgj 203](;B[br](;W[aq](;B[dr](;W[er](;B[ds](;W[ap];B[ar])(;W[ar];B[ap];W[bs](;B[cr])(;B[jj];W[cr];B[cs];W[es](;B[as])(;B[cr](;W[as];B[bq];W[ar];B[as];W[bs])(;W[ao];B[as])))))(;B[cs]C[ERROR Go Review 1970-6 p73];W[ar];B[ap];W[es];B[ds];W[bs]))(;W[ap](;B[ar])(;B[er];W[bq];B[cr];W[ar];B[fr];W[gq](;B[gr];W[hr])(;B[hr];W[gr];B[gs];W[iq])))(;W[ar];B[ap];W[er];B[ds];W[bs];B[cr]))(;B[ap];W[dr]))(;W[dr];B[aq](;W[bs];B[cs])(;W[cr];B[bs]))(;W[ds](;B[cs](;W[aq](;B[ar](;W[dr];B[ap];W[cr];B[bs])(;W[ap];B[dr];W[er];B[es];W[fs];B[ds]))(;B[dr](;W[ar];B[er];W[ap];B[fr];W[gq];B[bq];W[bs])(;W[er];B[es];W[fs](;B[ar];W[ds];B[ap];W[cr];B[bs])(;B[ap];W[ar];B[ds];W[bs]))(;W[ap];B[ar];W[er];B[es];W[fs];B[ds])))(;W[dr];B[aq];W[cr];B[bs]))(;B[aq];W[bs]))(;W[ap];B[aq];W[cr];B[ao];W[bs];B[dr];W[ds];B[er];W[an](;B[es];W[ap];B[cs])(;B[ap];W[ar];B[cs])))(;B[dr](;W[er](;B[br];W[ds](;B[cs])(;B[cr](;W[aq];B[ap];W[ar];B[cs];W[as];B[es];W[fs])(;W[cs](;B[bs];W[aq];B[ap];W[ar])(;B[aq];W[bs]))))(;B[cr];W[ds];B[cs];W[ap];B[aq];W[br];B[es];W[fs])(;B[ds];W[br];B[cr];W[ap](;B[aq];W[bs];B[ao];W[bm])(;B[bs];W[ar])))(;W[br](;B[er];W[cr])(;B[cr];W[er])))(;B[cr];W[dr]))(;GM[1]FF[4]SZ[19]AP[Sabaki:0.52.2]CA[UTF-8]GN[14 tsumego advice part ten problem 2]DT[2020-11-24]KM[-7.5]RU[Simple]AB[pb][pc][rb][qc]AW[ob][oc][od][pd][qd][qf]AE[da][db][dc][dd][de][df][dg][dh][qa][qb][bb][cb][sb][ec][rc][be][bf][pe][bh][ch][cl][el][rl][rm][rn][bo][co][qo][qp][qq][so][cq][dq][eq][sq][br][cr][dr][fr][fs][rs]PL[W]C[page 10
tsumego advice part ten problem 2

White to play]SO[bgj 203](;W[qa];B[rd];W[re](;B[sc]C[Go Review ERROR 1970-06p73  ];W[ra];B[pa];W[se])(;B[sd];W[ra];B[pa];W[sb];B[rc]))(;W[rd];B[qa];W[sb];B[sc]))(;GM[1]FF[4]SZ[19]AP[Sabaki:0.52.2]CA[UTF-8]GN[16 tsumego advice part ten problem 3]DT[2020-11-24]KM[-7.5]RU[Simple]AB[cq:dq][dr]AW[cm][co:cp][ep:er][gr]AE[ca][pa:ph][ab:bb][qb:rb][bc:bd][dc][oc][cd][de][re:rf][af:cf][qh:rh][bl:bn][ol][ql][ao][qo:ro][aq][qq:qr][pr][rr][bs]PL[B]TR[cm][co][gr]C[page 16
tsumego advice part ten problem 3

Black to play]SO[bgj 203](;B[br]CH[1](;W[bp]C[NOT error OIT5p80 open lib lives];B[cs])(;W[ds]C[Not discussed but fails with open lib];B[cs];W[bq];B[bp]MA[dp]))(;B[bp]HO[1];W[br];B[bq];W[bo];B[ar];W[bs];B[ap];W[ds])(;B[ar];W[bp];B[bs];W[bq];B[br];W[ds]))(;GM[1]FF[4]SZ[19]AP[Sabaki:0.52.2]CA[UTF-8]GN[17 tsumego advice part ten problem 4]DT[2020-11-24]KM[-7.5]RU[Simple]AB[cq][dq][dr]AW[co][cp][dp][ep][eq][er][gr]AE[ca][pa][pb][pc][pd][pe][pf][pg][ph][ab][bb][qb][rb][bc][bd][dc][oc][cd][de][re][rf][af][bf][cf][qh][rh][bl][bm][bn][ol][ql][ao][qo][ro][aq][qq][qr][pr][rr][bs]PL[B]TR[co][gr]C[page 17
tsumego advice part ten problem 4

Black to play]SO[bgj 203](;B[br]CH[1](;W[ds]TE[1](;B[cs];W[bq];B[es];W[ar];B[bp];W[ap])(;B[bp](;W[bs](;B[bo];W[bn];B[bm];W[an];B[ao];W[cm];B[aq];W[cr])(;B[bn];W[bo];B[ao];W[cm]))(;W[cs];B[bs])))(;W[ap];B[aq](;W[cs];B[bs])(;W[bp];B[cs]))(;W[cs];B[bp](;W[bo];B[ap](;W[ds];B[bs])(;W[bs];B[ds];W[ar];B[bq]))(;W[ds](;B[bs];W[bo];B[ap])(;B[bo];W[bn];B[bs];W[aq];B[ar]))(;W[bs](;B[ds];W[bo];B[ap];W[ar];B[bq])(;B[bo](;W[ds];B[cn])(;W[bn];B[ds])))))(;B[bp]HO[1];W[br];B[bq];W[bo];B[ar];W[bs]))(;GM[1]FF[4]AP[Sabaki:0.52.2]SZ[19]CA[UTF-8]AW[sq][sr][rr][ps][pr][pq][oq][mr]AB[op][pp][qp][rp][sp][rq][nq][mq][or][lr][kq]C[page 23
problem 4

Black to play and kill.]GN[23 problem 4]SO[bgj 203](;B[qq]C[If Black plays too simply, White makes two eyes.];W[qr](;B[nr];W[rs])(;B[rs];W[nr]))(;B[nr];W[qq];B[rs]C[This is not a snap-back shape.];W[qs])(;B[qr];W[qq]C[This also fails.])(;B[rs]C[This is the correct play, being on the vital point both for eye-destroying and snap-back threatening.];W[qq];B[os](;W[nr];B[qr]C[This is a snap back.])(;W[qs]C[This is of course self-atari.])(;W[qr];B[nr]C[White is dead.])))(;GM[1]FF[4]AP[Sabaki:0.52.2]SZ[19]CA[UTF-8]AB[sr][rq][rp][qq][pr][ps][or][os]AW[nr][ns][nq][oq][pq][qr][qp][qo][ro][so]C[page 25
problem 5

Black to play and live.]SO[bgj 203]GN[25 problem 5](;B[rr]C[It looks like threatening to capture the stone attacking the four black stones will enable an under-the-stones eye.];W[rs]C[However White doesn't take but plays here killing Black.])(;B[rs]C[This is the correct play to threaten to save the four stones or make two eyes on the side.](;W[sp];B[qs])(;W[qs];B[rr](;W[pr];B[sp])(;W[sp];B[pr]))))(;SZ[19]CA[UTF-8]ST[2]GM[1]FF[4]AP[Sabaki:0.52.2]PW[ Maeda]PB[Mukai ]GN[ 29 go jottings 24 game 1]PM[2]FG[259:]AB[qd][od][nb][mb][cd][de][eq][hq][pj][qj][pp][oo][po][qo][on][rp][oq]AW[cp][cm][dh][ec][jc][mc][qp][qq][pq][rq][qr][pn][qh][oh][kq][op][np][mp]C[page 29
go jottings 24 - advancing from the opening to the middle game
game 1]SO[bgj 203]BR[6p]WR[8p];B[mh];W[pe];B[oe];W[pd];B[pc];W[qc];B[rc];W[qb];B[qe];W[pf];B[pb];W[qf];B[rd];W[of];B[hc])(;SZ[19]GM[1]CA[UTF-8]FF[4]AP[Sabaki:0.52.2]ST[2]FG[259:]PM[2]AB[qq][pe][of][pf][qf][rf][cp][ep][ce][np][fe][jq][pp][pj][od][qj]GN[ 30 go jottings 24 game 2]AW[sd][ne][qk][oe][qe][re][dh][pl][dc][gc][qn][cl][pc][qc][rc][rp][nd][pd]SO[bgj 203]AN[Go Seigen]C[page 30
go jottings 24 - advancing from the opening to the middle game
game 2

a game between two of the top amateurs](;B[hd];W[gd];B[ge];W[he];B[jd];W[hc];B[id];W[hf];B[jf];W[hh];B[cc];W[dd];B[cd];W[de];B[df];W[ef];B[dg];W[eg];B[bh];W[cb];B[bb];W[db])(;B[cj];W[dj];B[ci];W[di];B[bg];W[el]L[hd]))(;CA[UTF-8]SZ[19]ST[2]FF[4]GM[1]AP[Sabaki:0.52.2]GN[ 32 go jottings 24 game 3]PB[Kasakada ]PM[2]FG[259:]PW[Koyama]BR[5p]WR[5p]C[page 29
go jottings 24 - advancing from the opening to the middle game
game 3]SO[bgj 203];B[cp];W[pp];B[ep];W[cd];B[pd];W[fc];B[cj];W[cg];B[nq];W[jq];B[qq];W[pq];B[qp];W[po];B[pr];W[or];B[qr];W[oq];B[qn];W[gq];B[nc];W[pm];B[ko];W[go];B[kq];W[kr];B[lq];W[jp];B[mn];W[pn];B[qm];W[pk];LB[mk:A][fq:B][gr:C];B[jo];W[dm];B[en];W[ej](;B[di];W[ei];B[dh];W[em];B[fn];W[fg];B[ef];W[ff];B[eh];W[fh];B[df];W[ce];B[bm];W[bn];B[cn];W[dn];B[co];W[do];B[dp];W[eo];B[dk];W[fo])(;B[fr];W[fq];B[er]))