(;GM[1] FF[4] AP[Hibiscus:2.1] SZ[19] ST[3] ;AB[lq][pp] AW[qn] PL[B] C[Black to close the corner. What's the proper move?] LB[nq:A][np:B][qp:C][rp:D][ro:E][qo:F](;B[qp] C[RIGHT Because of the weaknesses around A this solid move is most often the best. Black doesn't need to worry about the weakness at A as long as White doesn't get a stone in at K3.] LB[qp:1][nq:A][jq:G])(;B[nq] C[This is too small. White can still move in at A or B if he likes to.] LB[nq:1][rp:A][qq:B])(;B[np] C[This is too small. White can still move in at A or B if he likes to.] LB[np:1][rp:A][qq:B])(;B[ro] LB[ro:1][pj:A][nq:B]C[This move is a little too loose. White can jump lightly to A or even invade at B.] )(;B[qo] ;W[pn] LB[pn:2][pk:A][oq:B][nq:C][np:D](;B[oq] C[RIGHT If you have a stone around S this way of playing is reasonable.] LB[oq:3][pk:S])(;B[np] C[Wrong. White can still invade at A.] LB[np:3][qq:A])(;B[nq] C[Wrong. White can still invade at A.] LB[nq:3][qq:A])(;B[pk] C[Black is simply too weak at the bottom to try a move like this.] )))