(;AB[pq]AB[po]AW[dq]AB[dd]AW[fc]AB[df]AW[jd]AB[cj]AW[pd]LB[do:A]LB[co:B]LB[fe:C]LB[qp:D]LB[db:F]AB[qj]AW[qg]LB[oc:E]LB[jq:G]LB[jp:H]C[FORCE]AP[goproblems] (;W[co];B[jp]C[Just what black wanted]) (;W[do];B[jp]C[Just what black wanted]) (;W[jq]C[The high must cooperate with the low-many people say this is a good move(i think because it is stable or something)RIGHT]) (;W[fe]C[It is unnecessary to protect the point at A Because W its small because white can still take revenge with X and its the wrong way if white wants to protect it]LB[cc:X]LB[hc:A]) (;W[db];B[jp]TR[dq]C[The corner is small and the marked stonne is weak and isolated]) (;W[oc]C[It is unnecessary to protect the corner]) (;W[qp]C[small]) (;W[jp]C[Yes that hinges blacks development and strengthens the marked stone while giving you around 10-30 points!However,the height is unstable.Black will now attack it in several different ways.RIGHT]TR[dq]LB[lq:A]LB[hp:B]LB[hq:C]))