(;
GM[1]
SZ[19]
AW[de][dd][dc][ec][eb][pp][co][cp][dq][fr][di][jc]
AB[cb][db][cc][cd][cf][fc][oc][qd][qj][cn][do][dn][fp]
C[Problem 96. White to play.  

It seems as if White should play in the lower right or at the top. But look at the whole board before deciding on your move. ]
(;W[df]
TR[di]

TE[2]
C[Correct Answer.  

It is essential that White maintain a link with the marked stone by pushing with 1 ... ]
;B[cg];W[dg]
C[... and 3. These moves have increased Black's profit on the left, but White has become thick in compensation. ]
;B[dh]
C[If Black 4 next, ... ]
;W[ch]
C[... White cuts with 5. <= ]
)
(;W[mc]
C[Failure.  

If White makes a checking extension with 1, ... ]
;B[df]
C[... Black will push up with 2 ... ]
;W[ef];B[eg]
C[... and 4, and, ... ]
;W[ff];B[dh]
TR[di]
C[... after Black 6, the marked white stone has become isolated and a black moyo on the left side comes into being. <= ]
)
)