This was adapted from a game. W played elsewhere, and B could have ended the game right there.
Neither of us saw it until near the end. This situation stayed there for half the game... and both of us were utterly mortified when we realized it. At 5k, we should have seen it instantly.
So, since I was w in this situation, make my day miserable by punishing my carelessness!
(;AW[jg]AW[jh]AW[kg]AW[kf]AW[ke]AW[le]AW[lg]AW[mg]AW[mh]AW[li]AB[ji]AB[ih]AB[ig]AB[jf]AB[je]AB[jd]AB[kd]AB[ld]AB[me]AB[lf]AB[mf]AB[ng]AB[nh]AB[mi]AB[ni]AW[mj]AW[mk]C[B to end the game]AW[kj]AP[goproblems]
(;B[lh];W[kh];B[ki]C[RIGHT])
(;B[ki];W[lh])
(;B[kh];W[lh];B[lj];W[ki])
(;B[lj];W[ki]
(;B[kh];W[lh])
(;B[lh];W[kh])))