Use case: Logistics, Scheduling & Event Planning
Instruction type: Implicit
Prompt style: Direct prompting

Prompt:
Plan me a shift pattern for the NY week (1200 on the Sat 27th to midnight on the Fri 2nd) for the bar. Weekdays and sunday we need 2px opening at 10am then 4px from 12 until end of food service at 9pm then three to close at 11. 
Fridays are the same opening, but we're open till midnight, with 6px until end of food then 4 to close.  
Sat 2px opening at 10 then 4px from 12-3 then open till 2330, with 10px from 3pm till end of food then 6 to close. 
NYE is full house until 2am then half go home and half close. The half that close get a late start the next day (3pm)
Weekdays there must always be at least one supervisor closing, fridays and saturdays two. 
All staff not on a split shift get a half hour break (paid) between 12-6. Usually alone. If scheduled as a double explain why, except NYE. 
Target is for 40hrs each, and as balanced and equal as possible. Explain major deviations. 
Each staff member needs 2 days off a week, preferably back to back. 

Usual shift patterns are:
10-6
10-3 6-F(close)
11-4 7-F
12-9
3-F

Staff:
Dustin
Mike
Will (can only work 12-9 except NYE)
Lucas
El
Max
Nancy
Jonathon
Joyce (Supervisor)
Hopper (Supervisor)
Steve (Supervisor)
Robin (Supervisor)
Billy
Bob
Murray

Format answer as a clear table with notes and explanations below. Staff names on the left in order of rank and days of the week at the top.

Evaluation criteria:
The response should plan a shift pattern from 12:00 on Saturday, 27th December to midnight on Friday, 2nd January.
The response should present the shift pattern formatted as a table.
The response should format the table's header row as the days of the week, or abbreviated days of the week, along with the dates with or without ordinal suffixes: Saturday 27th, Sunday 28th, Monday 29th, Tuesday 30th, Wednesday 31st, Thursday 1st, Friday 2nd.
The response should present a table with the first column containing all the staff names from the following list: Joyce, Hopper, Steve, Robin, Dustin, Mike, Will, Lucas, El, Max, Nancy, Jonathon, Billy, Murray, Bob. Minor spelling variations are acceptable if they do not cause confusion.
The response should present a table with the first column containing the names Joyce, Hopper, Steve, and Robin (in any order) before the names Dustin, Mike, Will, Lucas, El, Max, Nancy, Jonathon, Billy, Bob, Murray (in any order). Minor spelling variations are acceptable if they do not cause confusion.
The response should identify Joyce, Hopper, Steve, and Robin as supervisors.
The response should include any notes or explanations beneath the table.
The response should ensure that on Saturday the staffing levels are: 4 people from 12pm-3pm, 10 people from 3pm until 9pm, and 6 people from 9pm to close.
The response should ensure that on Friday the staffing levels are: 2 people from 10am-12pm, 6 people from 12pm to 9pm, and 4 people from 9pm to close.
The response should ensure that on Sunday and any weekday not designated as New Year's Eve the staffing levels are: 2 people from 10am-12pm, 4 people from 12pm to 9pm, and 3 people from 9pm to close.
The response should ensure that on New Year's Eve, the chart shows that all staff members work the evening shift until at least 2 am, then 7 or 8 staff members go home, and the other 7 or 8 staff work until close.
The response should ensure that, in the table, any staff who worked until after 2 am on New Year's Eve do not start until 3 pm if they are scheduled on New Year's Day.
The response should ensure that on Sundays and weekdays not designated as New Year's Eve, at least one supervisor (Joyce, Hopper, Steve, Robin) is on a closing shift in the table.
The response should ensure that on Fridays and Saturdays, at least two supervisors (Joyce, Hopper, Steve, Robin) are on a closing shift in the table.
The response should ensure that Will is only scheduled for 12-9 shifts on any day he is working that is not designated as New Year's Eve.
The response should contain shift schedules limited to the following list in any columns labeled Sunday, Monday, Tuesday, Wednesday, or Thursday (or abbreviations thereof): 10-6; 10-3 6-F, 11-4 7-F, 12-9, 3-F, 10-3 6-11, 11-4 7-11, 3-11, OFF, or comparable formatting variations. If the column is labeled NYE or 31, the entries need not be drawn from the list.
The response should contain shift schedules limited to the following list in any columns labeled Friday (or abbreviation thereof): 10-6; 10-3 6-F, 11-4 7-F, 12-9, 3-F, 10-3 6-12, 11-4 7-12, 3-12, OFF, or comparable formatting variations.
The response should contain shift schedules limited to the following list in any columns labeled Saturday (or abbreviation thereof): 10-6; 10-3 6-F, 11-4 7-F, 12-9, 3-F, 10-3 6-11:30, 11-4 7-11:30, 3-11:30, OFF, or comparable formatting variations.
The response should contain an explanation for every instance that a staff member is scheduled for a double shift (or split shift) on any day other than New Year's Eve.
The response should ensure that each of the 15 staff members is scheduled for two days off in the 7-day week.
The response should ensure that each staff member's two days off are consecutive. For example, "OFF, OFF" is preferred over "OFF, 10-6, OFF".
The response should provide an explanation below the table if consecutive days off are unable to be scheduled for any staff members.
The response should ensure that the total weekly hours for each staff member are at least 40 hrs each.
The response should ensure that the weekly hours for each staff member are balanced. For example, one person should not have 50 hrs whilst another only has 30 hrs.
The response should state the total number of hours it has assigned to each member of the staff. This total should be calculated by adding the hours worked every day by that staff member by using standard clock math based on a 12 hour clock. For example, but not as an exhaustive list, 10-6 is 8 hours, 12-9 is 9 hours, 10-3 6-11 is 10 hours, 11-4 7-11 is 9 hours, 3-11 is 8 hours, 10-3 6-12 is 11 hours, 11-4 7-12 is 10 hours, 3-12 is 9 hours, 10-3 6-11:30 is 10.5 hours, 11-4 7-11:30 is 9.5 hours, 3-11:30 is 8.5 hours, OFF is 0 hours, etc. On Sunday through Thursday, 10-3 6-F is 10 hours, 11-4 7-F is 9 hours, and 3-F is 8 hours; on Friday, 10-3 6-F is 11 hours, 11-4 7-F is 10 hours, and 3-F is 9 hours; and on Saturday, 10-3 6-F is 10.5 hours, 11-4 7-F is 9.5 hours, and 3-F is 8.5 hours. The response should not state a total that does not equal the sum of the hours worked.
The response should contain an explanation for any major deviation from 40 hrs in the stated total number of hours a staff member receives. For example, any deviation of 5 or more hours requires an explanation.
The response should assign a half-hour paid break between 12 PM and 6 PM in the schedule table to any member of staff who is not working a split shift.
The response should ensure that breaks are taken alone, and not "doubled-up", except on New Year's Eve when staffing volume will likely require doubling up. For example, "Steve: 13:00, Robin 13:30" is preferable to "Steve 13:00, Robin 13:00".
If the response contains any overlapping half hour breaks between 12 PM and 6 PM on any day other than New Year's Eve, the response should contain an explanation for each instance; otherwise, no explanation is required.
The response should not assign a half-hour paid break in the schedule table to any member of staff who is working a split shift.