Table:
0
A
B
C
D
E
F
G
1
Week
Date
Opponent
Result
Record
Game Site
Attendance
2
1
September 4, 1983
at New England Patriots
W 29–23 OT
1–0
Sullivan Stadium
45,526
3
2
September 11, 1983
Denver Broncos
L 10–17
1–1
Memorial Stadium
52,613
4
3
September 18, 1983
at Buffalo Bills
L 23–28
1–2
Rich Stadium
40,937
5
4
September 25, 1983
Chicago Bears
W 22–19
2–2
Memorial Stadium
34,350
6
5
October 2, 1983
at Cincinnati Bengals
W 34–31
3–2
Riverfront Stadium
48,104
7
6
October 9, 1983
New England Patriots
W 12–7
4–2
Memorial Stadium
35,618
8
7
October 16, 1983
Buffalo Bills
L 7–30
4–3
Memorial Stadium
38,565
9
8
October 23, 1983
Miami Dolphins
L 7–21
4–4
Memorial Stadium
32,343
10
9
October 30, 1983
at Philadelphia Eagles
W 22–21
5–4
Veterans Stadium
59,150
11
10
November 6, 1983
at New York Jets
W 17–14
6–4
Shea Stadium
53,323
12
11
November 13, 1983
Pittsburgh Steelers
L 13–24
6–5
Memorial Stadium
57,319
13
12
November 20, 1983
at Miami Dolphins
L 17–50
6–6
Miami Orange Bowl
54,482
14
13
November 27, 1983
at Cleveland Browns
L 23–41
6–7
Cleveland Stadium
65,812
15
14
December 4, 1983
New York Jets
L 6–10
6–8
Memorial Stadium
35,462
16
15
December 11, 1983
at Denver Broncos
L 19–21
6–9
Mile High Stadium
74,864
17
16
December 18, 1983
Houston Oilers
W 20–10
7–9
Memorial Stadium
20,418

Questions and formulas:
Question: Who was the opponent at the game at Sullivan Stadium before week 11?
Formula: LET(query1,LET(query1,FILTER(A1:G1,F1="sullivan stadium"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)<11))
Formula2: LET(query1,LET(query1,FILTER(A2:G17,F2:F17="sullivan stadium"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)<11))
Level: hard