(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[md][qf]AB[pd]LB[pf:A]C[This is the lead in sequence.. just play the marked moves] ;B[pf]CR[pf] ;W[pg]LB[of:A]CR[pg] ;B[of]CR[of] ;W[qe]LB[qd:A]CR[qe] ;B[qd]CR[qd] ;W[pe]LB[oe:A]CR[pe] ;B[oe]CR[oe] ;W[od]CR[od]C[The problem now starts.. White cuts -- How should black respond?] ;B[nd]CR[nd] ;W[oc]CR[oc] (;B[rd]CR[rd] ;W[qi]CR[qi] ;B[nc]CR[nc] ;W[ob]CR[ob] ;B[nb]CR[nb] (;W[ne]CR[ne]C[CHOICE] ;B[nf]CR[nf] ;W[me]CR[me] ;B[pb]CR[pb] ;W[mg]LB[lc:A]CR[mg]C[RIGHT This sequence ending with white N13 completes the joseki. The resulting position is considered equal for both black and white. Black has a reasonable corner with a future play at 'A' and white has good development on the outside]) (;W[qb]CR[qb]C[CHOICE] ;B[rb]CR[rb] ;W[ra]CR[ra]C[How should Black play] (;B[sb]CR[sb] ;W[ne]CR[ne] ;B[nf]CR[nf] ;W[me]CR[me] ;B[lc]CR[lc] ;W[mg]CR[mg] ;B[pb]CR[pb] ;W[pc]CR[pc] ;B[qc]CR[qc] ;W[pa]CR[pa] ;B[na]CR[na] ;W[oa]CR[oa] ;B[sa]CR[sa] ;W[mc]CR[mc] ;B[qa]CR[qa] ;W[mb]CR[mb] ;B[pb]CR[pb] ;W[mf]CR[mf]C[If this sequence were to happen early on during the game, black would have lost by this time. White's development on the outside is too great for black to overcome, particularly if both players are strong kyu or higher. Where did black go wrong?]) (;B[me]CR[me] (;W[rc]CR[rc]C[CHOICE] ;B[pb]CR[pb] (;W[pc]CR[pc]C[CHOICE] ;B[qc]CR[qc] ;W[pa]CR[pa] ;B[sc]CR[sc] ;W[re]CR[re] ;B[na]CR[na] ;W[oa]LB[me:A]CR[oa]C[RIGHT This sequence ends in ko or seki. The key move was black A. This shows that you were thinking on the outside rather then the inside]) (;W[pa]CR[pa]C[CHOICE] ;B[pc]CR[pc] ;W[oa]CR[oa] ;B[na]CR[na] ;W[qa]CR[qa] ;B[sb]CR[sb] ;W[sc]CR[sc] ;B[qc]CR[qc] ;W[sa]CR[sa] ;B[rb]CR[rb] ;W[sb]CR[sb] ;B[sd]LB[pa:A][me:B]CR[sd]C[RIGHT White's play at A led to the downfall. The key move was black B. This shows that you were thinking on the outside rather then the inside])) (;W[sb]CR[sb]C[CHOICE] ;B[rc]CR[rc] ;W[re]CR[re] ;B[sc]LB[me:A]CR[sc]C[RIGHT Ends in ko. The key move was black A. This shows that you were thinking on the outside rather then the inside]) (;W[qc]CR[qc]C[CHOICE RIGHT Ends in ko])))) (;B[nc]CR[nc] ;W[ob]CR[ob] ;B[rd]CR[rd] ;W[qi]CR[qi] ;B[nb]CR[nb] (;W[ne]CR[ne]C[CHOICE] ;B[nf]CR[nf] ;W[me]CR[me] ;B[pb]CR[pb] ;W[mg]LB[lc:A]CR[mg]C[RIGHT This sequence ending with white N13 completes the joseki. The resulting position is considered equal for both black and white. Black has a reasonable corner with a future play at 'A' and white has good development on the outside]) (;W[qb]CR[qb]C[CHOICE] ;B[rb]CR[rb] ;W[ra]CR[ra]C[How should Black play] (;B[sb]CR[sb] ;W[ne]CR[ne] ;B[nf]CR[nf] ;W[me]CR[me] ;B[lc]CR[lc] ;W[mg]CR[mg] ;B[pb]CR[pb] ;W[pc]CR[pc] ;B[qc]CR[qc] ;W[pa]CR[pa] ;B[na]CR[na] ;W[oa]CR[oa] ;B[sa]CR[sa] ;W[mc]CR[mc] ;B[qa]CR[qa] ;W[mb]CR[mb] ;B[pb]CR[pb] ;W[mf]CR[mf]C[If this sequence were to happen early on during the game, black would have lost by this time. White's development on the outside is too great for black to overcome, particularly if both players are strong kyu or higher. Where did black go wrong?]) (;B[me]CR[me] (;W[rc]CR[rc]C[CHOICE] ;B[pb]CR[pb] (;W[pc]CR[pc]C[CHOICE] ;B[qc]CR[qc] ;W[pa]CR[pa] ;B[sc]CR[sc] ;W[re]CR[re] ;B[na]CR[na] ;W[oa]LB[me:A]CR[oa]C[RIGHT This sequence ends in ko or seki. The key move was black A. This shows that you were thinking on the outside rather then the inside]) (;W[pa]CR[pa]C[CHOICE] ;B[pc]CR[pc] ;W[oa]CR[oa] ;B[na]CR[na] ;W[qa]CR[qa] ;B[sb]CR[sb] ;W[sc]CR[sc] ;B[qc]CR[qc] ;W[sa]CR[sa] ;B[rb]CR[rb] ;W[sb]CR[sb] ;B[sd]LB[pa:A][me:B]CR[sd]C[RIGHT White's play at A led to the downfall. The key move was black B. This shows that you were thinking on the outside rather then the inside])) (;W[sb]CR[sb]C[CHOICE] ;B[rc]CR[rc] ;W[re]CR[re] ;B[sc]LB[me:A]CR[sc]C[RIGHT Ends in ko. The key move was black A. This shows that you were thinking on the outside rather then the inside]) (;W[qc]CR[qc]C[CHOICE RIGHT Ends in ko])))))