There are errors in the description, e.g. "Rounds 12, 13: 18 hdc Round 14: dec, 14 sc, dec [16 sc] Round 15: 9 dec [16:2=8, not 9] of hdc Round 16: 9 sc [?]Round 17: 9 dec of hdc" [how to do with 8 sc - 9 dec?] There are also errors in the previous description, unfortunately I did not note it.