(;SZ[19]AW[np]AW[op]AW[hq]AW[iq]AW[jq]AW[kq]AW[lq]AW[mq]AW[nq]AW[pq]AW[qq]AW[hr]AW[mr]AW[nr]AW[hs]AB[oq]AB[ir]AB[jr]AB[kr]AB[lr]AB[or]AB[qr]AB[is]AB[ms]AB[ns]C[black to live without ko]GM[1]FF[1]CA[UTF-8]AP[Jago:Version 4.53]ST[2]RU[Japanese]KM[0.00]PW[Weiß]PB[Schwarz]GN[Problem2]GN[Problem2]
(;B[rr];W[pr]
(;B[ps];W[rq]
(;B[sr];W[os];B[or]LB[js:A]LB[ss:B]C[RIGHT]C[one eye at A and one eye at BRIGHT])
(;B[os];W[sr]C[no room for another eye here])
(;B[qs];W[sr]C[no room for another eye here])
(;B[sq];W[qs];B[rs];W[sr]
(;B[ss];W[ro]C[only one eye])
(;B[sp];W[ro])))
(;B[os];W[ps]C[only one eye]))
(;B[pr];W[rr]
(;B[os];W[qs]
(;B[rq];W[rp]
(;B[qp];W[pp]
(;B[qo];W[sq]C[white is connected])
(;B[sq];W[sp]C[white is connected]))
(;B[sq];W[sp];B[qp];W[pp]C[white is connected]))
(;B[pp];W[qp];B[po];W[qo];B[qn];W[pn];B[oo];W[rn];B[qm];W[rm]C[white lives, and black dies])
(;B[rs];W[rq]C[only one eye])
(;B[ps];W[ls]C[ouch]))
(;B[qs];W[os]
(;B[rq];W[rs]
(;B[ps];W[os]C[black dies])
(;B[rp];W[ps]C[black dies])
(;B[sq];W[ps]C[black dies])
(;B[sr];W[ps]C[black dies]))
(;B[pp];W[rs]
(;B[rq];W[ps]C[black dies])
(;B[qp];W[ps]C[black dies])
(;B[ps];W[os]C[black dies]))
(;B[ps];W[rs]
(;B[os];W[ls]C[black dies])
(;B[ls];W[os]C[black dies])))
(;B[rq];W[rp]
(;B[sq];W[sp]
(;B[qp];W[pp]C[white is connected])
(;B[os];W[qs]C[only one eye];B[qp];W[pp]C[white is connected])
(;B[qs];W[os];B[rs];W[sr]C[white is connected]))
(;B[qp];W[pp];B[sq];W[sp]C[white is connected])
(;B[rs];W[sq]
(;B[os];W[qs]C[only one eye])
(;B[qs];W[os]C[only one eye])))
(;B[pp];W[qp];B[po];W[qo];B[qn];W[pn];B[oo];W[rn];B[qm];W[rm]C[white lives, black dies]))
(;B[rq];W[pr]
(;B[os];W[ps]C[only one eye])
(;B[ps];W[rr]
(;B[rs];W[qs]C[only a ko])
(;B[qs];W[rs];B[os];W[ls]C[ouch])
(;B[sr];W[qs]C[only one eye])))
(;B[ps];W[rr]C[no place for another eye]))