(;SZ[19]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]AW[rn]AW[op]AW[pp]AW[qp]AW[rp]AW[oq]AW[mr]AW[or]AB[pq]AB[qq]AB[rq]AB[pr]AB[rs]RU[Japanese]PW[White]PB[Black](;W[rr];B[sr](;W[qs];B[qr]C[Black Lives])(;W[ps];B[qs]))(;W[sr];B[sq](;W[ps];B[qs];W[rr]C[RIGHT])(;W[rr];B[ps]C[];W[qr]C[Not a seki - white can fill up the liberties from the outside, and black will be in atari. The reason that this is not a seki, is that the main black group does not border the liberty at t1.RIGHT])(;W[qs];B[ps]C[Failure! Black is Alive.](;W[rr];B[qr])(;W[qr];B[rr])))(;W[qs];B[ps]C[Black Lives](;W[sq];B[sr])(;W[sr];B[sq](;W[rr];B[qr])(;W[qr];B[rr]))(;W[rr];B[qr]))(;W[ps];B[sr];W[qs];B[qr]C[Failure. Black Lives!])(;W[sq];B[sr]C[];W[ps];B[qs]C[Failure. Black Lives.]))