(;AW[cr]AW[dq]AW[dp]AB[dr]AB[er]AW[cn]AW[cm]AB[dm]AB[dl]AB[ck]AB[br]AB[gq]C[How to handle A?]LB[br:A]AB[cj]AB[dk]AB[dj]AB[ej]AP[goproblems]
(;W[cs];B[cq]
(;W[bq];B[cp]
(;W[bp];B[co]
(;W[do]C[Well done! Caught in a ladder! :)RIGHT])
(;W[bo];B[do]C[:(]))
(;W[co];B[bp]C[White's in serious trouble! :(])
(;W[ar];B[bp]
(;W[bs]
(;B[do]C[White crumbles! :(])
(;B[ap]C[If black fears the ko not... Could play this...]))
(;W[aq];B[bs];W[as];B[ap]C[B wins the semai for the corner...])))
(;W[cp];B[bq]C[Here goes a part of the corner... And w needs to seek life...])
(;W[bp];B[bq]C[Here goes a part of the corner... And w needs to seek life...]))
(;W[cq];B[cs]C[And white needs to worry for life...])
(;W[bq];B[cs]C[:(])
(;W[bs];B[cq]C[:(])
(;W[ds];B[cq]C[:(]))