Hi all. As usual i request a kind review of my review i have no time to play online against real opponent so i have to play against a bot. Please focus on my errors and as usual feel free to critique my direction of play and the final tsumego thanks
(;FF[4]GM[1]SZ[19]CA[UTF-8]AP[Igowin iPhone:1.1]GN[perso0]PB[User]BR[8 Kyu]HA[0]PW[Igowin Pro]WR[5 Kyu]KM[6.5]DT[2015-04-23]RE[W+0.5]RU[Japanese];B[pd];W[dq];B[pq];W[cc];B[qk];W[po];B[nq];W[no] ;B[ck];W[co];B[ch];W[nc];B[qf];W[qm];B[ce]C[This i Belive its wrong and small. Better k3 right? ];W[pi] ;B[qi];W[pj];B[qj];W[kc];B[lp]C[Again better to take the side with k3. I was trying to escape in the center but here im not threatened];W[jp]C[Punishement! ];B[ln]C[Another bad move. I should have played h3 or G3 right?];W[gq] ;B[ed];W[ec];B[fc];W[eb];B[fd];W[fb];B[gb];W[ga] ;B[ha];W[fa];B[hc];W[pc];B[qc];W[qd];B[qe];W[rd] ;B[rc];W[od];B[pe];W[oe];B[of];W[nm];B[qp]C[Is this skippable? Where to play? ];W[qo] ;B[ro];W[rn];B[rq];W[so];B[rp];W[nf];B[ng]C[It leads to bad shape but where to play? ];W[og] ;B[pf];W[ph];B[qh];W[nh];B[mg];W[mf];B[lg];W[lf] ;B[kf];W[ke];B[jf];W[je];B[ie];W[id];B[hd]C[Risky. Isn't better j14? ];W[if] ;B[he];W[ig]C[? Simply L13. Ok computers play bad and bla bla... ];B[kg];W[jh];B[kh];W[ji];B[lj]C[I learnt not to push from behind with L11 right?];W[ki] ;B[li];W[jc];B[ll];W[ib];B[ic];W[jd];B[hb];W[pk] ;B[ql];W[pl];B[sp];W[sn];B[cm];W[bn];B[bm];W[jn] ;B[jl]C[What about this. It leads to some peeps but it does some disconnection?];W[kk];B[lk];W[jk];B[kl];W[il];B[rl]C[Small right? Better g8?];W[nk] ;B[mh];W[ni];B[gg];W[im];B[gj];W[gl];B[fm];W[fl] ;B[el];W[em];B[fn]C[Useless, Now i see];W[dn];B[dm];W[en];B[fk];W[ek] ;B[dl];W[gk];B[fj];W[jr];B[kr];W[kq];B[lq];W[hj] ;B[hi];W[ij];B[kp];W[jq];B[pb];W[oc];B[ob];W[nb] ;B[na]C[Ok bad plan, right?] (;W[ma];B[qb];W[jb];B[oa];W[lb]C[Bad];B[ia];W[ja];B[rm];W[pm] ;B[sm];W[qn];B[op];W[oo];B[mo];W[ko];B[lr];W[bd] ;B[be];W[ae];B[af];W[ad];B[cd]C[Calculated. If b14 i Add stones until i reach a7 then kill];W[bc];B[dc]C[Not calculated. Simply a mistake ];W[db] ;B[bf];W[dd];B[de];W[dc];B[an];W[ao];B[am];W[kn] ;B[lm];W[mn];B[lo];W[hf];B[gf];W[jg];B[hg];W[mi] ;B[lh];W[cn];B[ih];W[ii];B[hh];W[gi];B[fi];W[js] ;B[ks];W[np];B[mp];W[pp];B[oq];W[qr]C[Here the beginning of a bad tsumego by my side. I was afraid To lose the corner. How i defend ed?];B[qq];W[nl] ;B[pg];W[oh];B[kj];W[nr];B[jj];W[hk];B[ik];W[jk] ;B[kk];W[ik];B[or]C[Probably a decisive mistake. Was it necessary? I Belive no. ];W[os];B[mm];W[nn];B[mj];W[nj] ;B[mr]C[Again very bad ];W[ns];B[ms];W[ml];B[mk];W[rg];B[qg];W[jm] ;B[km];W[];B[]C[White +0.5 lol ]) (;W[sj]))
Re: A close game to review
Posted: Thu Apr 23, 2015 1:02 pm
by Bill Spight
It is a good exercise to look for the last losing play.
(;ST[2]AP[GOWrite:2.3.46]FF[4]GM[1]CA[UTF-8]SZ[19]HA[0]FG[259:]PM[2]PB[User]DT[2015-04-23]RU[Japanese]RE[W+0.5]KM[6.5]PW[Igowin Pro]GN[perso0]WR[5 Kyu]BR[8 Kyu] ;B[pd] ;W[dq] ;B[pq] ;W[cc] ;B[qk] ;W[po] ;B[nq] ;W[no] ;B[ck] ;W[co] ;B[ch] ;W[nc] ;B[qf] ;W[qm] ;C[This i Belive its wrong and small. Better k3 right?]B[ce] ;W[pi] ;B[qi] ;W[pj] ;B[qj] ;W[kc] ;C[Again better to take the side with k3. I was trying to escape in the center but here im not threatened]B[lp] ;W[jp]C[Punishement!] ;C[Another bad move. I should have played h3 or G3 right?]B[ln] ;W[gq] ;B[ed] ;W[ec] ;B[fc] ;W[eb] ;B[fd] ;W[fb] ;B[gb] ;W[ga] ;B[ha] ;W[fa] ;B[hc] ;W[pc] ;B[qc] ;W[qd] ;B[qe] ;W[rd] ;B[rc] ;W[od] ;B[pe] ;W[oe] ;B[of] ;W[nm] ;C[Is this skippable? Where to play?]B[qp] ;W[qo] ;B[ro] ;W[rn] ;B[rq] ;W[so] ;B[rp] ;W[nf] ;C[It leads to bad shape but where to play?]B[ng] ;W[og] ;B[pf] ;W[ph] ;B[qh] ;W[nh] ;B[mg] ;W[mf] ;B[lg] ;W[lf] ;B[kf] ;W[ke] ;B[jf] ;W[je] ;B[ie] ;W[id] ;C[Risky. Isn't better j14?]B[hd] ;W[if] ;B[he] ;W[ig]C[? Simply L13. Ok computers play bad and bla bla...] ;B[kg] ;W[jh] ;B[kh] ;W[ji] ;C[I learnt not to push from behind with L11 right?]B[lj] ;W[ki] ;B[li] ;W[jc] ;B[ll] ;W[ib] ;B[ic] ;W[jd] ;B[hb] ;W[pk] ;B[ql] ;W[pl] ;B[sp] ;W[sn] ;B[cm] ;W[bn] ;B[bm] ;W[jn] ;C[What about this. It leads to some peeps but it does some disconnection?]B[jl] ;W[kk] ;B[lk] ;W[jk] ;B[kl] ;W[il] ;C[Small right? Better g8?]B[rl] ;W[nk] ;B[mh] ;W[ni] ;B[gg] ;W[im] ;B[gj] ;W[gl] ;B[fm] ;W[fl] ;B[el] ;W[em] ;C[Useless, Now i see]B[fn] ;W[dn] ;B[dm] ;W[en] ;B[fk] ;W[ek] ;B[dl] ;W[gk] ;B[fj] ;W[jr] ;B[kr] ;W[kq] ;B[lq] ;W[hj] ;B[hi] ;W[ij] ;B[kp] ;W[jq] ;B[pb] ;W[oc] ;B[ob] ;W[nb] ;C[Ok bad plan, right?]B[na] ( ;W[ma] ;B[qb] ;W[jb] ;B[oa] ;W[lb]C[Bad] ;B[ia] ;W[ja] ;B[rm] ;W[pm] ;B[sm] ;W[qn] ;B[op] ;W[oo] ;B[mo] ;W[ko] ;B[lr] ;W[bd] ;B[be] ;W[ae] ;B[af] ;W[ad] ;C[Calculated. If b14 i Add stones until i reach a7 then kill]B[cd] ;W[bc] ;C[Not calculated. Simply a mistake]B[dc] ;W[db] ;B[bf] ;W[dd] ;B[de] ;W[dc] ;B[an] ;W[ao] ;B[am] ;W[kn] ;B[lm] ;W[mn] ;B[lo] ;W[hf] ;B[gf] ;W[jg] ;B[hg] ;W[mi] ;B[lh] ;W[cn] ;B[ih] ;W[ii] ;B[hh] ;W[gi] ;B[fi] ;W[js] ;B[ks] ;W[np] ;B[mp] ;W[pp] ;B[oq] ;W[qr]C[Here the beginning of a bad tsumego by my side. I was afraid To lose the corner. How i defend ed?] ;B[qq] ;W[nl] ;B[pg] ;W[oh] ;B[kj] ;W[nr] ;B[jj] ;W[hk] ;B[ik] ;W[jk] ;B[kk] ;W[ik] ;C[Probably a decisive mistake. Was it necessary? I Belive no.]B[or] ;W[os] ;B[mm] ;W[nn] ;B[mj] ;W[nj] ;C[Again very bad]B[mr] ;W[ns] ;B[ms] ;W[ml] ;B[mk] ;W[rg] ( ;C[*** Game losing play. See variation.]B[qg] ;W[jm] ;B[km] ;W[tt] ;C[White 0.5 lol]B[tt] ) ( ;B[jm] ( ;W[qg]C[*** This cut looks dangerous, but . . .
Also see variation.] ;C[*** No problem.]B[re] ( ;W[in]C[*** Correct play. See variation.] ;C[*** Result\: Black wins by 1.5.]B[km] ) ( ;W[km] ;B[in] ;W[jo] ;B[hn]C[*** Big loss for White. The 18 marked stones are dead.]TR[ig][hf][if][jg][jh][ji][ki][ii][ij][hj][gk][hk][ik][jk][il][im][gl][fl] )
) ( ;W[re]C[*** Threatens the cut.] ;B[qg] ;W[rf]C[*** This threatens nothing. Black can pass. See continuation.] ;C[*** Black passes.]B[tt] ( ;W[sj] ;C[*** Black makes life.]B[sk] ( ;W[rj] ;B[ri] ;W[si] ;B[sh] ;W[rh] ;B[rk] ;W[si] ;B[sj] ) ( ;W[si] ;B[rj] )
( ;W[rh] ;C[*** This lives.]B[sk] ;W[ri] ;B[rj] ;W[sd] ;C[*** If White plays here he lives.]B[si] ;W[sb] ;B[sc] ;W[ra] ;C[*** The corner is a false seki.]B[qa] ;W[sh] ;C[*** White is dead.]B[sf] )
( ;W[sk]C[*** Prevents the one point eye here.] ;B[si] ;W[rh] ;C[*** Black easily wins the fight.]B[ri] )
W ignored your -- why don't you continue? o7 -- attack!
W gets this first, because you never thought about attacking him.
Too early, this is yose, and you lost sente for no reason.
Basic shape problem/confused/bad habit/misunderstanding. The local shape is connect directly. Why do you want to give W the free atari ? Globally, this is yose; gote; you should tenuki.
Start:
$$W $$ . . . . . . . . . | $$ . . . O . . O . . | $$ . X . . . . . 1 . | $$ . . . O . O O X . | $$ . X . . . , X 2 . | $$ . . . X . X . . . | $$ . . . . . . . . . | $$ . . . . . . . . . | $$--------------------
[go]$$W Continued $$ . . . . . . . . . | $$ . . . O . . O . . | $$ . X . . . . . O . | $$ . . . O . O O X 3 | $$ . X . . . , X X . | $$ . . . X . X . 4 . | $$ . . . . . . . . . | $$ . . . . . . . . . | $$--------------------[/go]
That's your result in the game.
Re: A close game to review
Posted: Thu Apr 23, 2015 5:12 pm
by mlund
should be played at O4. This is classic fuseki in the Chinese Opening. Having someone approach your 3-4 stones is one of the scenarios the Chinese Opening is built around. You want to apply pressure against that approaching stone and use it to develop your position. O4 is a shared vital point for Black and White, and Black has the advantage of playing there first. Doing so is Sente. White must respond or his approach stone will be severely damaged in the next move. By playing at O4 you allowed white to respond at O5, limiting your development potential and giving him good access to the outside. On your 4th move you deviated severely away from the strategic aim of your first 3 moves.
Marty Lund
Re: A close game to review
Posted: Thu Apr 23, 2015 9:23 pm
by Fllecha
Thanks all for the comments. Are my corrections in the sgf globally correct? I want to improve my error finding
Re: A close game to review
Posted: Fri Apr 24, 2015 1:58 am
by Knotwilg
Although most lessons to learn have been pointed out, I've answered your questions in below review, since you asked for it.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2] RU[Japanese]SZ[19]KM[6.50] GN[perso0]PW[Igowin Pro]PB[User]WR[5k]BR[8k]DT[2015-04-23]C[Knotwilg (K): I will answer your questions in this review.
However, make sure to learn from Ed's comments and others' too.]RE[W+0.50] ;B[pd] ;W[dq] ;B[pq] ;W[cc] ;B[qk] ;W[po] ;B[nq] ;W[no] ;B[ck] ;W[co] ;B[ch] ;W[nc] ;B[qf] ;W[qm] ;B[ce]LB[oc:B][kd:D][nd:C][lp:A]C[This i Belive its wrong and small. Better k3 right?
K: it's not wrong. K3 is not much better though. I'd prefer an attacking move like A, or B followed by C then D] ;W[pi] ;B[qi] ;W[pj] ;B[qj] ;W[kc] ;B[lp]C[Again better to take the side with k3. I was trying to escape in the center but here im not threatened
K; no, K3 does not "take" the side. Your move is better because it attacks the right side by blocking its development.] ;W[jp]C[Punishement!
K: not at all.] ;B[ln]C[Another bad move. I should have played h3 or G3 right?
K: no, this is the correct move. You split White's forces.
I think you are thinking too much in terms of territory and should think more about health of groups.] ;W[gq] ;B[ed] ;W[ec] ;B[fc] ;W[eb] ;B[fd] ;W[fb] ;B[gb] ;W[ga] ;B[ha] ;W[fa] ;B[hc] ;W[pc] ;B[qc] ;W[qd] ;B[qe] ;W[rd] ;B[rc] ;W[od] ;B[pe] ;W[oe] ;B[of] ;W[nm] ;B[qp]C[Is this skippable? Where to play?
K: it's a good move. It takes territory while undermining White's base] ;W[qo] ;B[ro] ;W[rn] ;B[rq] ;W[so] ;B[rp]C[(see what Ed says about this sequence)] ;W[nf] ;B[ng]C[It leads to bad shape but where to play?
K: Your move is good: it surrounds the right side on a large scale.] ;W[og] (;B[pf]C[K: but this is where you go wrong. See variaton] ;W[ph] ;B[qh] ;W[nh] ;B[mg] ;W[mf] ;B[lg] ;W[lf] ;B[kf] ;W[ke] ;B[jf] ;W[je] ;B[ie] ;W[id] ;B[hd]C[Risky. Isn't better j14?
K: yes] ;W[if] ;B[he] ;W[ig]C[? Simply L13. Ok computers play bad and bla bla... ] ;B[kg] ;W[jh] ;B[kh] ;W[ji] ;B[lj]C[I learnt not to push from behind with L11 right?
K: yes, good move] ;W[ki] ;B[li] ;W[jc] ;B[ll] ;W[ib] ;B[ic] ;W[jd] ;B[hb] ;W[pk] ;B[ql] ;W[pl] ;B[sp] ;W[sn] ;B[cm] ;W[bn] ;B[bm] ;W[jn] ;B[jl]C[What about this. It leads to some peeps but it does some disconnection?
K: yes, it splits. Very good] ;W[kk] ;B[lk] ;W[jk] ;B[kl] ;W[il] (;B[rl]LB[im:A]C[Small right? Better g8?
K: well ... White's right side group is still not 100% safe, so it depends if you are really attacking this group.
The group is not easy to kill either, so simply cutting at A would be better] ;W[nk] ;B[mh] ;W[ni] ;B[gg] ;W[im] ;B[gj] ;W[gl] ;B[fm] ;W[fl] ;B[el] ;W[em] ;B[fn]C[Useless, Now i see
K: more overplay than useless] ;W[dn] ;B[dm] ;W[en] ;B[fk] ;W[ek] ;B[dl] ;W[gk] ;B[fj] ;W[jr] ;B[kr] ;W[kq] ;B[lq] ;W[hj] ;B[hi] ;W[ij] ;B[kp] ;W[jq] ;B[pb] ;W[oc] ;B[ob] ;W[nb] ;B[na]C[Ok bad plan, right?
K: yes] (;W[ma] ;B[qb] ;W[jb] ;B[oa] (;W[lb]C[Bad
K: I think White does well to defend here] ;B[ia] ;W[ja] ;B[rm] ;W[pm] ;B[sm] ;W[qn] ;B[op] ;W[oo] ;B[mo] ;W[ko] ;B[lr] ;W[bd] ;B[be] ;W[ae] ;B[af] ;W[ad] ;B[cd]C[Calculated. If b14 i Add stones until i reach a7 then killµ
K: very good. This makes you stronger] ;W[bc] ;B[dc]C[Not calculated. Simply a mistake ] ;W[db] ;B[bf] ;W[dd] ;B[de] ;W[dc] ;B[an] ;W[ao] ;B[am] ;W[kn] ;B[lm] ;W[mn] ;B[lo] ;W[hf] ;B[gf] ;W[jg] ;B[hg] ;W[mi] ;B[lh] ;W[cn] ;B[ih] ;W[ii] ;B[hh] ;W[gi] ;B[fi] ;W[js] ;B[ks] ;W[np] ;B[mp] ;W[pp] ;B[oq] ;W[qr]C[Here the beginning of a bad tsumego by my side. I was afraid To lose the corner. How i defend ed?
K: as Bill points out, no need to defend] ;B[qq] ;W[nl] ;B[pg] ;W[oh] ;B[kj] ;W[nr] ;B[jj] ;W[hk] ;B[ik] ;W[jk] ;B[kk] ;W[ik] ;B[or]C[Probably a decisive mistake. Was it necessary? I Belive no. ] ;W[os] ;B[mm] ;W[nn] ;B[mj] ;W[nj] ;B[mr]C[Again very bad ] ;W[ns] ;B[ms] ;W[ml] ;B[mk] ;W[rg]C[K: again not necessary] ;B[qg] ;W[jm] ;B[km] ;W[] ;B[]C[White 0.5 lol ]) (;W[lr] ;B[mr] ;W[ks] ;B[mb] ;W[la] ;B[md]C[This is the vital point] (;W[ne] ;B[le] ;W[mc] ;B[lb] ;W[ka] ;B[lc]) (;W[me] ;B[ne] ;W[nd] ;B[mc]) (;W[le] ;B[ne] ;W[mc] ;B[lb] ;W[ka] ;B[lc]) (;W[mc] ;B[lb] ;W[ka] ;B[ne] ;W[le] ;B[lc]))) (;W[sj])) (;B[im] ;W[jm] ;B[hl] ;W[ik] ;B[hm]C[another white group needs to live on its own])) (;B[oh] ;W[pf] ;B[pg] ;W[of] ;B[ph]C[Now it's White who ends up with a lump and you still surround White's right group]))
Edit: the endgame situation at the top was not well edited. So I need to read again if White needs to defend. At least it has bad aji.
Re: A close game to review
Posted: Fri Apr 24, 2015 3:50 am
by Fllecha
Thanks guys that was what i was looking for!! Now i have good stuff to study!
i have no time to play online against real opponent so i have to play against a bot. Please focus on my errors 
W ignored your 
-- why don't you continue? o7 -- attack!
W gets this first, because you never thought about attacking him.
Too early, this is yose, and you lost sente for no reason.
Basic shape problem/confused/bad habit/misunderstanding.
-- Black to play:
?
should be played at O4. This is classic fuseki in the Chinese Opening. Having someone approach your 3-4 stones is one of the scenarios the Chinese Opening is built around. You want to apply pressure against that approaching stone and use it to develop your position. O4 is a shared vital point for Black and White, and Black has the advantage of playing there first. Doing so is Sente. White must respond or his approach stone will be severely damaged in the next move. By playing at O4 you allowed white to respond at O5, limiting your development potential and giving him good access to the outside. On your 4th move you deviated severely away from the strategic aim of your first 3 moves.