(
  ;GM[1]FF[4]CA[UTF-8]AP[Sabaki:0.40.1]KM[5.5]SZ[13]DT[2018-11-07]AB[al][bm][cl][bk][cj][ci][ch][cg][bg]AE[bl]AW[bj][bi][bh][ai][ag][bf][be][ak]LB[ak:1]C[White just captured stone with 1, find in-between move (ko threat) to cancel ko rule and capture some stones]
  ;B[af]
  ;W[ae]
  ;B[aj]
  ;W[af]
  ;B[ah]C[Correct]
)
