This elementary problem was on the board all the game when we were fighting for connection of this group,me and anohter 4k player, and i found the solution few moves before pass
(;C[White to live]AW[rp]AW[sp]AW[qp]AB[ro]AW[rm]AW[qn]AW[po]AW[rl]AB[sk]AB[rk]AB[qk]AW[pp]AW[oo]AW[no]AW[nn]AW[nm]AB[sq]AB[rq]AB[qq]AB[pq]AB[op]AB[np]AB[mp]AB[lo]AB[ok]AB[lm]AB[ml]AB[pm]AB[om]AB[pk]AB[nl]AP[goproblems]
(;W[sl];B[sn]
(;W[rn];B[so]C[Seki - how simple];W[pn]C[RIGHT])
(;W[so];B[rn]
(;W[qm];B[pn])
(;W[pn];B[qm]))
(;W[qm];B[rn]
(;W[so];B[pn])
(;W[pn];B[so])))
(;W[sn];B[sl])
(;W[rn];B[sl]
(;W[sm];B[so])
(;W[so];B[sm])))
