(;SZ[19]AB[pd]AB[pj]AB[pp]AB[jd]AW[dp]AW[jp]AW[dd]AW[qc]TR[qc]LB[qd:A]LB[pc:B]C[Which move, A or B, is the correct answer for the 3-3 invasion?]FF[4]GM[1]AP[Jago:Version 4.16]
(;B[qd];W[pc]LB[oc:A]C[Please play at A.FORCE];B[oc]C[FORCE];W[ob]LB[nc:A]C[Please play at A.FORCE];B[nc]C[FORCE];W[nb]LB[mc:A]C[Please play at A.FORCE];B[mc]C[FORCE];W[rd]LB[re:A]C[Please play at A.FORCE];B[re]C[FORCE];W[rc]LB[qf:A]C[Please play at A.FORCE];B[qf]C[Correct. Blocking at R16 works in conjunction with the marked stones to create the ideal moyo on the right side.FORCERIGHT]TR[pj]TR[pp])
(;B[pc];W[qd]LB[qe:A]C[Please play at A.FORCE];B[qe]C[FORCE];W[re]LB[qf:A]C[Please play at A.FORCE];B[qf]C[FORCE];W[rf]LB[qg:A]C[Please play at A.FORCE];B[qg]C[FORCE];W[pb]LB[ob:A]C[Please play at A.FORCE];B[ob]C[FORCE];W[qb]LB[nc:A]C[Please play at A.FORCE];B[nc]TR[pd]TR[pj]TR[pp]C[The three marked stones are meant for creating a moyo at the right side, but this sequence emphasizes the top side instead. Also, the area at A is still left open for white.]LB[rg:A]))