(;SZ[19]AW[ho]AW[hm]AW[hk]AW[hj]AW[iq]AW[jq]AW[jo]AW[jm]AW[jk]AW[kr]AW[kq]AW[lr]AW[lk]AW[np]AW[nn]AW[nm]AW[nl]AW[pq]AW[qq]AB[go]AB[gn]AB[gm]AB[gk]AB[hq]AB[hp]AB[hl]AB[ir]AB[lq]AB[lo]AB[lm]AB[mr]AB[mq]AB[mo]AB[mm]AB[or]AB[pr]C[Problem VII.4 in The Game of Go by Arthur Smith.]FF[1]GM[1]AP[Jago:Version 4.6]GN[vii.4]
(;B[jn];W[in]
(;B[kn]
(;W[il]
(;B[ip]
(;W[jp]C[CHOICE];B[io]C[RIGHT])
(;W[io]C[CHOICE];B[jp];W[kp];B[ko]C[RIGHT]))
(;B[gl];W[ip]))
(;W[ip];B[il]
(;W[jl]C[CHOICE];B[im]C[RIGHT])
(;W[im]C[CHOICE];B[jl];W[kl];B[km]C[RIGHT])))
(;B[ip];W[ko]
(;B[il];W[km];B[jl];W[kl]C[Bamboo joints are strong, no?])
(;B[io];W[kn];B[jl];W[il])
(;B[kn];W[km];B[ln];W[io];B[il];W[im];B[jl];W[kl]))
(;B[il];W[km]
(;B[kn];W[im];B[ip];W[ko]
(;B[ln];W[io];B[jl];W[kl])
(;B[io];W[ln]C[Bamboo = strong.]))
(;B[ip];W[ko]C[Mmm, nice bamboo joints. :)];B[jl];W[kl]C[Bamboo joints are strong, no?])))
(;B[ip];W[ko]
(;B[il];W[jl])
(;B[io];W[in];B[il];W[jl])
(;B[jn];W[in];B[io];W[km]))
(;B[il];W[km]
(;B[jn];W[in];B[ip];W[ko];B[jl];W[kl])
(;B[jl];W[kl]
(;B[ip];W[jp])
(;B[jn];W[kn]
(;B[in];W[ko])
(;B[ko];W[in];B[jp];W[ip]))))
(;B[ko];W[jn]
(;B[jl];W[il])
(;B[ip];W[jp];B[jl];W[il])
(;B[il];W[jl]))
(;B[km];W[jn])
(;B[in];W[jn])
(;B[hn];W[in]
(;B[io];W[jn]
(;B[il];W[jl])
(;B[im];W[jl];B[jp];W[kp]
(;B[ko];W[ip])
(;B[ip];W[ko])))
(;B[im];W[jl];B[io];W[jn];B[jp];W[kp]
(;B[ip];W[ko])
(;B[ko];W[ip])))
(;B[io];W[in];B[hn];W[il];B[jp];W[kp]
(;B[ko];W[ip];B[im];W[jn])
(;B[ip];W[ko]))
(;B[im];W[il];B[hn];W[in];B[ip];W[jp])
(;B[kn];W[jn]))