(;AB[ca]AB[cb]AB[dc]AB[ec]AB[cd]AB[ed]AB[ee]AB[ef]AB[eg]AB[fh]AB[gh]AB[hh]AB[ig]AB[if]AB[ie]AB[id]AB[ic]AB[ib]AB[ha]AB[kb]AW[fa]AW[eb]AW[db]AW[fc]AW[gc]AW[hc]AW[hb]AW[fe]AW[ge]AW[he]AW[hf]AW[ff]AW[gg]AP[goproblems]
(;B[da]
(;W[ga]C[CHOICE]
(;B[fb]
(;W[gb]C[CHOICE]
(;B[ea]C[Well done!RIGHT])
(;B[fg]C[NOTTHIS])
(;B[hg]C[NOTTHIS])
(;B[fd];W[ea])
(;B[gd];W[ea])
(;B[hd];W[ea]))
(;W[ea];B[gb]C[RIGHT]))
(;B[gb];W[ia])
(;B[ea];W[fb])
(;B[ia];W[fb])
(;B[fg]C[NOTTHIS])
(;B[hg]C[NOTTHIS])
(;B[fd];W[ia])
(;B[gd];W[ia])
(;B[hd];W[ia]))
(;W[gb];B[ea]C[RIGHT])
(;W[fb];B[ga]C[RIGHT])
(;W[ea];B[ga]C[RIGHT]))
(;B[fg]C[NOTTHIS])
(;B[hg]C[NOTTHIS])
(;B[hd];W[da]C[])
(;B[fd];W[da])
(;B[gd];W[da])
(;B[ga];W[da]TR[ea]TR[gf]C[White got 2 eyes. Black cannot falsify them.])
(;B[gb];W[da]TR[ea]TR[gf]C[White got 2 eyes. Black cannot falsify them.])
(;B[fb];W[gb]TR[fb]TR[gf]C[White got 2 eyes.])
(;B[ea];W[da])
(;B[ia];W[ga]
(;B[fb];W[ea])
(;B[gb];W[fb])
(;B[da];W[ea])
(;B[ea];W[da])
(;B[fg]C[NOTTHIS])
(;B[hg]C[NOTTHIS])
(;B[fd])
(;B[gd])
(;B[hd])))