(;AP[goproblems]AB[dr]AB[er]AB[eq]AB[fp]AB[gq]AB[go]AB[ho]AB[iq]AW[cq]AW[cr]AW[ds]AW[fr]AW[ep]AW[dp]AW[en]AW[fo]AW[gn]TR[fr]C[Protect your points. Don't let white connect the marked stone.](;B[fs]TR[fq]TR[es]C[Well done! White can't play at the marked points now.RIGHT])(;B[es];W[fq](;B[gp];W[fs])(;B[fs];W[gp])(;B[gr];W[gp]))(;B[gr];W[es]C[White connected.])(;B[fq];W[es]C[White connected.])(;B[gs];W[fq](;B[gp];W[es])(;B[fs];W[gp])(;B[gr];W[gp])(;B[es];W[gp])))