(;
GM[1]
SZ[19]
AW[nc][cf][bd][hc][ge]
AB[pj][dj][dp][pd][pp][dd][pf][fd][cc][kd]
LB[ge:9][kd:8][nc:1][pf:2][cf:3][fd:4][bd:5][cc:6][hc:7]
C[Problem 65. Black to play.  

How should Black answer White 9 ? ]
(;B[ff]
TE[2]
C[Correct Answer.  

Jumping out to Black 1 makes good shape. ]
;W[dh]
C[If White defends the left side with 2, ... ]
;B[fh]
C[... Black will jump to 3. ]
;W[fe]
C[Black need not worry about White cutting through with 4 ... ]
;B[ee];W[ef]
C[... and 6. ]
;B[df]
C[Black will atari with 7, ... ]
;W[eg];B[gd];W[hd];B[he];W[gf];B[fg];W[hf];B[ie]
C[... then power his way through White's position with the sequence to 15. ]
;W[if];B[id];W[dg];B[ic]
C[Up to 19, Black has taken a big profit at the top and dominates the center. <= ]
)
(;B[df]
C[How the game continued.  

Black attached with 1 ... ]
;W[dg];B[ef]
C[... and extended to 3. ]
;W[ch];B[bc]
LB[ch:4][dg:2]
C[He then secured the corner with 5. White also secured her stones with 2 and 4 in sente, so this result was less satisfactory for Black. See Problem 69 for the continuation. <= ]
)
)