(;AB[rj]AB[qk]AB[ql]AB[rm]AW[rl]AW[rk]AW[qj]AW[pk]AW[qm]AW[om]AW[nm]AW[nn]AB[mm]AB[lm]AB[mn]AB[lo]AB[kn]AB[no]AB[on]AB[nl]AW[ml]AW[ll]AW[mk]AW[oo]AW[op]AW[ro]AW[qp]AB[ri]AB[qh]AB[pg]AW[oj]AW[mi]AB[mp]C[Black to do his best]AP[goproblems] (;B[pm] (;W[pn];B[qn];W[pl];B[qm]C[CHOICERIGHT]) (;W[pl];B[ol]C[White has to add a move during the endgame to prevent black r6.CHOICERIGHT])) (;B[ol];W[pm];B[sk];W[pl];B[sl]C[You can get more than this.]) (;B[sk];W[pl];B[sl]C[You can get more than this; gote.]) (;B[pl];W[ol]) (;B[sl]C[];W[pl];B[sk]C[You can get more than this; gote.]) (;B[qn];W[pl]))