(;AB[qk][pp][kq]LB[qq:A] C[FORCE Please play at 'A' to start.];W[qq];B[qp] (;W[rp]C[NOTTHIS]) (;W[pq];B[oq]C[FORCE];W[or];B[nq] C[NB. If black had played 'O2' here, white could reply...... i) 'P4' if 'L3' is strong (see 2701)......ii) 'O3' if 'L3' is weak (giving up the corner, and attacking the lower side).] (;W[rp]C[NOTTHIS]) (;W[nr];B[mq];W[rp];B[ro];W[rq];B[qn] C[RIGHT White has made territory, caused black to overconcentrate his forces, and kept sente. However, because black has made great thickness, proper timing of the 3-3 point play is required.])))