(;GM[1]FF[4]AP[Drago:4.21]SZ[19]CA[UTF-8]AB[cd][fc][jd][cg]AW[ec]L[ec]C[White tries to live in the corner with E17. Show him that this is not possible with the surrounding stones.]
(;B[ed];W[dc]
(;B[fd];W[dd];B[de];W[cc];B[bd]
(;W[fb];B[gb];W[ea]
(;B[bb];W[bc];B[ac]
;W[cb]L[hc]C[Hm... Is this sente? If not, it will be very nice to protect the cut by playing H17...]
(;B[ab];W[ce];B[be];W[ee];B[df];W[gc];B[hb]
;W[ge]C[White tries to resist, show him that this is not working. All ladders favour white.]
(;B[gd];W[hc];B[hd];W[ic];B[ib];W[jc];B[kc];W[jb]
;B[kb]C[RIGHT])
(;B[fe];W[ff];B[ef];W[gd];B[ee];W[ic];B[hc];W[hd];B[id];W[ib]
;B[gf];W[he];B[hf]
;W[ie]C[The three stones are dead.]SQ[gb][hb][hc]))
(;B[hc];W[ab];B[aa]
;W[ca]L[db][ba]C[A and B are miai for life.])
(;B[ad]C[NOTTHIS]))
(;B[bc];W[bb]
(;B[ba];W[ab];B[ca]
;W[da]C[White is alive.])
(;B[ab];W[db];B[ba]
;W[ca]C[Only ko, blcak can do better])
(;B[db];W[cb];B[ab]
;W[ce]C[White is looking for the left adji...]
(;B[cf]C[NOTTHIS])
(;B[be];W[ee]
(;B[df];W[gc];B[hb]
;W[ge]C[How to respond? All leadders favour white.]
(;B[gd];W[hc];B[hd];W[ic];B[ib];W[jc];B[kc];W[jb]
;B[kb]C[RIGHT])
(;B[fe];W[ff];B[ef];W[gd];B[ee];W[ic];B[hc];W[hd];B[id];W[ib]
;B[gf]
;W[he]C[White is alive]))
(;B[cf]C[NOTTHIS])))))
(;W[bc];B[eb];W[db];B[fb];W[ad];B[be];W[ba];B[ab];W[ac]
(;B[da];W[ca];B[bb])
(;B[bb];W[da];B[cb])))
(;B[dd]
;W[fb]C[White will live easily]))
(;B[fd];W[cc];B[dd];W[fb];B[gb];W[bd];B[be];W[db]
(;B[bc];W[bb];B[ad];W[dc];B[ab];W[ea];B[ba]
;W[ca]C[White gets ko, black can do better])
(;B[bb];W[bc];B[dc];W[ab];B[ba]
;W[ca]L[ad][ea]C[White is alive])))