(;TR[lc]LB[kb:a]LB[ld:b]AB[jc][lb][mc][nc][oc][pd][qc][rc][re][sb]AW[lc][mb][nb][ob][pb][pc][qb][qf][rb]C[FORCE]AP[goproblems autoextractor]PW[spinel]PB[Alcander]PC[The KGS Go Server at http://www.gokgs.com/]DT[2010-01-30]PL[B]
(;B[ld]TR[qb]TR[rb]TR[mb]TR[nb]TR[ob]TR[pb]TR[pc]C[Playing here is worth about 30 points over playing away in an empty corner. The stones marked with a triangle are weaker. White would have played at the same place if you played away. RIGHT])
(;B[kb];W[qd]TR[qb]TR[rb]TR[mb]TR[nb]TR[ob]TR[pb]TR[pc]SQ[mc]SQ[nc]SQ[oc]C[This loses about 32 points. The stones marked with a triangle are alive. The stones marked with a square are weaker. ]))
