(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[lc][re]AB[nc][pd]LB[lc:1][nc:2][qd:A][rd:C][re:3][qf:B]C[Whte 3 is hamete. How should Black respond - A, B, or C] (;B[qd]CR[qd] ;W[qh]LB[aa:A][rd:B]CR[qh]C[Play A (tuneki) or B] (;B[rd]CR[rd] ;W[ic]LB[qd:1][rd:2][re:A]CR[ic]C[Black at R16 left a weakness at S16. Black can only defend this weakness with gote and in doing so had to play two moves (1 and 2) to defend against the hamete stone A.]) (;B[aa]CR[aa] ;W[rd]CR[rd] ;B[rc]CR[rc] ;W[rb]CR[rb]C[White responds with a tesuji] (;B[qb]CR[qb] ;W[sc]CR[sc]C[Black ends up overly concentrated in the corner]) (;B[sc]CR[sc] ;W[pb]CR[pb] ;B[qb]CR[qb] ;W[oc]CR[oc] ;B[od]CR[od] ;W[nb]CR[nb]C[Black's position is over concentrated.]) (;B[qc]CR[qc] ;W[sc]CR[sc]C[Black ends up overly concentrated in the corner]))) (;B[qf]CR[qf] ;W[rf]CR[rf] ;B[qg]CR[qg] ;W[qc]CR[qc] ;B[pc]CR[pc] ;W[qb]CR[qb]C[After this exchange, Black's position is too cramped.]) (;B[rd]CR[rd] ;W[od]CR[od]C[S16 is the correct response to S15. However -- white plays another hamete and another problem for Black ensues.] (;B[oc]CR[oc] ;W[qd]CR[qd] (;B[qc]CR[qc] ;W[qe]CR[qe]C[This is what white is expecting] (;B[rc]CR[rc] ;W[pe]CR[pe] ;B[pc]CR[pc] ;W[qi]CR[qi]C[The exchange is very favorable for white]) (;B[pe]CR[pe] ;W[rc]CR[rc] ;B[rb]CR[rb] ;W[sd]CR[sd] ;B[qb]CR[qb] ;W[pf]CR[pf] ;B[of]CR[of] ;W[og]LB[pf:A][og:B]C[These are very strong plays for white. Black's position is over concentrated, and White has taken part of the corner.])) (;B[qe]CR[qe] ;W[qc]CR[qc] ;B[pe]CR[pe] ;W[rc]CR[rc] ;B[rf]CR[rf] ;W[sd]LB[qg:A]CR[sd]C[Black finishes with A. This may seem like a good exchange for Black. But Black's position is too heavy. If you come to understand this, then you are on your way to becoming a stronger player.])) (;B[oe]CR[oe] ;W[qd]CR[qd] ;B[qc]CR[qc] ;W[qe]CR[qe] ;B[rc]CR[rc] (;W[pc]CR[pc]C[CHOICE] ;B[pe]CR[pe] ;W[oc]CR[oc] ;B[nd]CR[nd] ;W[nb]LB[oa:B][mb:A]CR[nb] (;B[mb]CR[mb] ;W[qb]CR[qb] ;B[rb]CR[rb] ;W[ne]CR[ne]C[Ouch. The cut is very painful]) (;B[oa]CR[oa] ;W[qb]CR[qb] ;B[pa]TR[oc][pc][od]CR[pa]C[RIGHT Black uses a tesuji and white loses the marked stones])) (;W[pe]CR[pe] ;B[pc]CR[pc] ;W[nd]CR[nd] ;B[md]CR[md] ;W[ne]CR[ne] ;B[of]CR[of] ;W[oc]CR[oc] ;B[qg]TR[qd][pe][qe][re]CR[qg]C[RIGHT White loses the four marked stones and the White stones on the left are over concentrated. Black now has a good sized corner and room to expand]))))