(;
AB[qd][od][ke][kc][cd][bc][be][dg][cp][jq][mq][qo][qi]
C[White plays:  A, B, or C?

Source:
    Blueprint 361, Miyamoto Naoki 9p
    Go World #6, Mar-Apr 1978, p. 58]
AW[ic][ie][ed][dc][cc][qk][ok][pq][qp][op][eq][dl]
LB[hq:A][oh:B][qc:C]
(;
W[oh]
C[Correct.

Letting Black play around here 1st would have produced an ideal formation in the upper right.

White's move has the added benefit of being sente.];
B[qg]
C[Black cannot afford to let White take this point.];
W[mo]
C[White can now take the 2nd key point here, and provoke Black to defend the bottom group.];
B[gq];W[do]
TR[oh]
C[Finally, White presses in sente here.

White's last 3 moves all join together to make the center White's sphere of influence.

Furthermore, because of the marked stone, Black has to worry about the aji in the upper right corner.]
)
    (;
    W[hq]
    C[Bad timing.

White wants to play this move, but ...];
    B[mo]
    C[... Black's natural response here threatens White's right side.];
    W[nn]
    C[White can defend easily, but ...];
    B[oi]
    C[Black has time to make this textbook-perfect move on the right side.];
    W[cr]
    C[White can attack the lower left, but ...];
    B[cn]
    C[... Black has room to extend without big worries.]
    )
    (;
    W[qc]
    C[An overplay.];
    B[pc];W[rd]
    (;
    B[rc]
    C[Expecting Black to cut here is wishful thinking.];
    W[qe];B[qb];W[ph]
    C[White has a great result on the right side.]
    )
        (;
        B[qe]
        C[Instead, Black will simply pull back.  Living in gote in the corner now would be too small.];
        W[mo]
        C[So White can take this big point and the next ...];
        B[gq];W[do]
        LB[oh:A][qg:B]
        TR[qc][rd][qd][qe]
        C[After Black defends in the lower left, you'd think that White could play A.

But in this variation, Black can eliminate White's upper right corner aji without giving White the huge follow up at B.  White's marked exchanges were too early.]
        )
    )
)

