(;SZ[7]AB[ec]AB[ce]AB[ee]AB[cc]AW[bd]LB[bd:1]AB[cd]LB[cd:2]AW[bc]LB[bc:3]AB[cb]AW[bb]LB[bb:5]AB[ca]LB[ca:6]LB[cb:4]AW[ba]LB[ba:7]AB[cf]LB[cf:8]AW[be]LB[be:9]AB[cg]LB[cg:10]AW[bf]LB[bf:11]AB[bg]LB[bg:12]C[White 13 is passed. Show him it is wrong.]AP[goproblems]
(;B[af];W[ae];B[ag]C[RIGHT])
(;B[ag];W[af])
(;B[ae];W[af])
(;B[ad];W[af])
(;B[ac];W[af])
(;B[ab];W[af])
(;B[aa];W[af]))