Table:
0
A
B
C
D
E
F
G
1
Week
Date
Opponent
Result
Game site
Record
Attendance
2
1
September 8, 1985
Green Bay Packers
W 26–20
Sullivan Stadium
1–0
49,488
3
2
September 15, 1985
at Chicago Bears
L 20–7
Soldier Field
1–1
60,533
4
3
September 22, 1985
at Buffalo Bills
W 17–14
Rich Stadium
2–1
40,334
5
4
September 29, 1985
Los Angeles Raiders
L 35–20
Sullivan Stadium
2–2
60,686
6
5
October 6, 1985
at Cleveland Browns
L 24–20
Cleveland Municipal Stadium
2–3
62,139
7
6
October 13, 1985
Buffalo Bills
W 28–6
Sullivan Stadium
3–3
40,462
8
7
October 20, 1985
New York Jets
W 20–13
Sullivan Stadium
4–3
58,163
9
8
October 27, 1985
at Tampa Bay Buccaneers
W 32–14
Tampa Stadium
5–3
34,661
10
9
November 3, 1985
Miami Dolphins
W 17–13
Sullivan Stadium
6–3
58,811
11
10
November 10, 1985
Indianapolis Colts
W 34–15
Sullivan Stadium
7–3
54,176
12
11
November 17, 1985
at Seattle Seahawks
W 20–13
The Kingdome
8–3
60,345
13
12
November 24, 1985
at New York Jets
L 16–13
The Meadowlands
8–4
74,100
14
13
December 1, 1985
at Indianapolis Colts
W 38–31
Hoosier Dome
9–4
56,740
15
14
December 8, 1985
Detroit Lions
W 23–6
Sullivan Stadium
10–4
59,078
16
15
December 16, 1985
at Miami Dolphins
L 30–27
Miami Orange Bowl
10–5
69,489
17
16
December 22, 1985
Cincinnati Bengals
W 34–23
Sullivan Stadium
11–5
57,953

Questions and formulas:
Question: Who was the opponent before week 6 at cleveland municipal stadium?
Formula: LET(query1,LET(query1,FILTER(A1:G1,E1="cleveland municipal stadium"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)<6))
Formula2: LET(query1,LET(query1,FILTER(A2:G17,E2:E17="cleveland municipal stadium"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)<6))
Level: hard