(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]SZ[19]KM[0.00]PW[white]PB[black]AW[nc][pc][qc][rc][rd][qf][cn][cp][cq][fq][cr][dr]AB[od][pd][qd][qe][re][qh][do][dp][dq][eq][iq][er]LB[qh:A][iq:B]C[What are the differences between this josekis ? After joseki ? A pincer and B double space pincer];B[dd](;W[rf];B[sf]C[best answer in this situation](;W[sg];B[se];W[rh];B[pf];AE[nc][pc][qc][rc][dd][od][qd][rd][qe][re][se][pf][qf][rf][sf][sg][qh][rh][cn][do][cp][dp][cq][dq][eq][fq][iq][cr][dr][er];W[dd];B[pp];W[dp];B[fq];W[hq];B[cq];W[dq];B[cp];W[do];B[dr];W[er];B[cr];W[eq];B[cn];W[nq];B[qn];W[pr];B[qq];W[lp]C[this shape is not possible because ...];B[jq](;W[jp];B[iq];W[ip];B[fr];W[fs];B[gs];W[es];B[hr];W[gq];B[gr];W[fp];B[is]C[black is alive];AE[qn][fp][ip][jp][lp][gq][iq][jq][nq][qq][fr][gr][hr][pr][es][fs][gs][is];W[nq];B[qn];W[kp]C[this shape is not possible in this case];B[iq];W[ip];B[jq];W[jp];B[fr];W[fs];B[gs];W[es];B[hr]C[black still alive];AE[qn][ip][jp][kp][iq][jq][nq][fr][hr][es][fs][gs];W[kq]C[So white usually plays here];AE[dd][pd][cn][do][cp][dp][pp][cq][dq][eq][fq][hq][kq][cr][dr][er];B[pd]C[Lee ChangHo vs ChangHao];W[dd];B[qp];W[dp];B[oq];W[qf];B[qi](;W[qc];B[qd];W[pc];B[od];W[rd];B[re];W[rc];B[qe];W[nc]LB[pf:A][qh:B][pj:C]C[we saw that with this joseki, white can escape. And if black plays A, he would end up gote and this move is slow. So we prefer to play B pincer instead. Or even a further pincer];B[];W[qh];B[pi];W[of]SQ[qk][ql][qm][qn]C[this way white escape but black became thick and is building something];AE[pc][dd][od][qd][qe][re][of][qh][pi][dp][qp][oq]AW[qi]AB[nc][qc]LB[rc:1]C[Let's see endgame];B[rb](;W[pb];B[qb];W[oc];B[od];W[nb];B[mc];W[mb];B[lc];W[lb];B[kc];W[kb];B[jc]C[black is happy to push white on the second line and making one point with each move])(;W[qd]LB[sb:A]C[A is a typical mistake](;B[qb];W[pe];B[od]C[white get stronger sente])(;B[pc]C[so black should defend like this];W[sb];B[ra]))(;W[sb](;B[re];W[qe];B[qd])(;B[qb];W[qd];B[pe]C[better for black]))(;W[ss];B[re];W[qe];B[qd];W[rf];B[sc];W[se]C[black gains more corner])(;AE[rb][rc]AW[lc]TR[lc]C[with another white stone here];W[rc];B[pf];W[qg];B[rb];W[pb];B[ob];W[qb];B[ra];W[pc];B[qd];W[od];B[oe];W[oc];B[nd];W[nb];B[pa];W[oa];B[qa];W[ob];B[mb]))(;W[nc];B[pf];W[pg];B[of];W[qc];B[qe];W[pc];B[rf]C[white seems low])(;W[nd];B[pf];W[qc](;B[qe];W[pc];B[]C[black has to make another move, so the double space pincer was not good. If black tenuki];W[qg];B[pg];W[re]C[white can connect])(;B[pc];W[pg];B[qe];W[of];B[pe];W[rg];B[og];W[ph];B[nf];W[re];B[rd];W[pi];B[oe];W[qk];B[jc]C[quite popular before chinese formation])))(;W[ip];B[jp];W[jo];B[hr];W[gr];B[ir];W[gq];B[lr]C[black still alive])(;W[kq];B[jp]C[black escape and white territory is so small]))(;AW[qj]TR[qj]C[But with a white stone here];W[sg];B[se];W[rh];B[pf]C[white can easialy connect];W[kq]C[but in the two spaces pincer, white can't connect];B[cf];W[fr];B[fs];W[hr];B[ir]))(;W[pi]C[the second difference is territory];B[qi];W[pj];B[ph];W[ni];B[oh];W[mk]C[black would have more territory with the double space pincer])(;W[hq](;B[ip];W[fo]C[white can escape in the double space pincer])(;B[hp];W[gp];B[hr];W[gr]C[white can make a ko with the double space pincer]))(;AE[nc][pc][qc][rc][od][qd][rd][qe][re][qf][qh][cn][do][cp][cq][dq][eq][fq][iq][cr][dr][er]AB[jd][dj];W[qf];B[qh];W[qc];B[pc];W[qd];B[pe];W[rf];B[og]C[better shape for moyo];W[fq];B[iq];W[cq];B[cp];W[dq];B[ep];W[gr]C[difficult for black to connect his stones];B[fp]LB[go:A][hp:B]C[if black plays A, white B is severe, and the pincer stone is really bad located];W[gp]))