This occurred to me one morning: what's the most solid way for W to do the capture.
Remember that what you're capturing are the cutting stones and you really don't want to allow any ko threats against the whole huge group
(;AB[hi]AB[ii]AB[jh]AB[jg]AB[jf]AB[ie]AB[he]AB[gf]AB[gg]AB[gh]AW[if]AW[hh]AW[gi]AW[gj]AW[hj]AW[ij]AW[ji]AW[kj]AW[kh]AW[ke]AW[je]AW[kf]AW[kg]C[]AW[jj]AB[ki]AB[li]AB[lj]AB[lk]AB[lh]AB[kk]AB[fi]AB[jd]AW[ld]AW[fk]AP[goproblems]
(;W[ih];B[hg]C[B makes a ko threat, T for tenuki]LB[dd:T]
(;W[dd];B[ig]C[Big loss])
(;W[ig]C[Oh dear, now B won the ko]))
(;W[hf];B[hg]
(;W[ih];B[ig]C[Oops :)])
(;W[ig];B[ih]C[Oops :)]))
(;W[hg];B[hf]C[B makes a ko threat, T for tenuki]LB[dd:T]
(;W[dd];B[ig]C[Big loss])
(;W[ih];B[ig]C[B makes *another* ko threat. T for tenuki]LB[dd:T]
(;W[dd];B[if]C[Big loss.])
(;W[if]C[Now B definitely won the ko, getting not one but *two* threats here.]))
(;W[ig];B[ih]C[Oops :)]))
(;W[ig];B[hg]C[B makes a ko threat, T for tenuki]LB[dd:T]
(;W[dd];B[ih];W[hh]C[Very good, there was no real ko threat hereRIGHT])
(;W[ih]C[B just tricked you :) You only need to answer once B *also* plays on the marked point]MA[hf])))