(;FF[4]GM[1]CA[UTF-8]AP[besogo:0.0.2-alpha]SZ[19]ST[0]
AB[ma][mb][mc][nc][oc][pc][qd][rd][sd]AW[na][nb][ob][pb][qc][rc][sc]
C[B to move]
(;B[ra]
(;W[qa]
(;B[sb]
;W[qb]
(;B[pa]
C[Right! Seki! RIGHT])
(;B[oa]
C[Right! Seki! RIGHT]))
(;B[pa]
(;W[qb]
;B[sb]TR[qb][rb]
C[Right! Seki! RIGHT])
(;W[rb]
;B[qb]SQ[qa]
C[ko! RIGHT]))
(;B[rb]
;W[qb]))
(;W[qb]
(;B[qa]
(;W[pa]
;B[sb]
C[Seki RIGHT])
(;W[sb]
;B[pa]
C[Seki RIGHT])
(;W[rb]
;B[pa]
;W[sa]
;B[sb]SQ[sa]
C[Ko RIGHT]))
(;B[sb]
;W[rb]
;B[qa]
;W[sa]SQ[sb]
C[Ko with W taking first])))
(;B[pa]
(;W[qb]
(;B[ra]
(;W[qa]
;B[sb]
C[Right! Seki! RIGHT])
(;W[rb]
;B[qa]
;W[sa]
;B[sb]SQ[sa]
C[Ko RIGHT]))
(;B[qa]
;W[ra])
(;B[rb]
;W[ra])
(;B[sb]
;W[ra]))
(;W[qa]
;B[ra]
(;W[qb]
;B[sb]
C[Seki RIGHT])
(;W[rb]
;B[qb]SQ[qa]
C[Ko RIGHT]))
(;W[rb]
;B[ra]
;W[qa]
;B[qb]SQ[qa]
C[Ko RIGHT]))
(;B[qa]
;W[ra]
(;B[rb]
;W[qb]
;B[sa]
;W[sb])
(;B[qb]
;W[rb])
(;B[pa]
(;W[qb])
(;W[rb]))
(;B[sa]
;W[rb])
(;B[sb]
(;W[qb])
(;W[rb])))
(;B[sb]
;W[ra])
(;B[rb]
;W[qb]
(;B[qa]
;W[sb]LB[pa:2][ra:1])
(;B[pa]
;W[qa]))
(;B[qb]
;W[rb]))