6,048 (5,152) Yorkshire Surprise Major

Robert D S Brown
234567   w  B  M  h  W  F  I  H
324756   s     -           -
273546      -
643257                  -     -
23465             -  -
64532          -     -
54236          -
453762   s                [-
574632      -
342567                  -]     
3 part. Lower-case letters indicate half-lead equivalent calls.

Contains 18 56s, 18 65s, 18 7568s, 18 8765s, 6 2468s at the back, and 6 8765s at the front, with Queens.
For 5152, omit [bracketed] calls in 2 parts.