Quirky transposition!

[Richard Pask]

A transposition discovered as a result of researching 10-15 23-19; 6-10 and 10-15 23-19; 7-10 simultaneously. It will be close to Alex's heart!

10-15 23-19; 6-10 21-17; 1-6 17-13; 11-16 22-18 (see '6th') 15-22 25-18; 16-23 26-19; 9-14 18-9; 5-14 29-25; 8-11 25-22; 11-15 27-23; 4-8

10-15 23-19; 7-10 27-23; 11-16 22-18; 15-22 25-18; 10-14 29-25; 16-20 32-27; 8-11 19-16; 12-19 24-8; 4-11 28-24; 6-10 24-19; same CR! (see BC)