Table:
0
A
B
C
D
E
F
G
H
I
1
Game
Date
Opponent
Result
Bills points
Opponents
Bills first downs
Record
Attendance
2
1
Sept. 7
Miami Dolphins
Win
17
7
22
1–0
79,598
3
2
Sept. 14
New York Jets
Win
20
10
22
2–0
65,315
4
3
Sept. 21
at New Orleans Saints
Win
35
26
26
3–0
51,154
5
4
Sept. 28
Oakland Raiders
Win
24
7
25
4–0
77,259
6
5
Oct. 5
at San Diego Chargers
Win
26
24
14
5–0
51,982
7
6
Oct. 12
Baltimore Colts
Loss
12
17
24
5–1
73,634
8
7
Oct. 19
at Miami Dolphins
Loss
14
17
18
5–2
41,636
9
8
Oct. 26
New England Patriots
Win
31
13
21
6–2
75,092
10
9
Nov. 2
Atlanta Falcons
Loss
14
30
20
6–3
57,959
11
10
Nov. 9
at New York Jets
Win
31
24
17
7–3
45,677
12
11
Nov. 16
at Cincinnati Bengals
Win
14
0
22
8–3
40,836
13
12
Nov. 23
Pittsburgh Steelers
Win
28
13
23
9–3
79,659
14
13
Nov. 30
at Baltimore Colts
Loss
24
28
24
9–4
36,184
15
14
Dec. 7
Los Angeles Rams
Win
10
7
15
10–4
77,133
16
15
Dec. 14
at New England Patriots
Loss
2
24
28
10–5
58,324
17
16
Dec. 21
at San Francisco 49ers
Win
18
13
16
11–5
37,476

Questions and formulas:
Question: Which date did the oakland raiders play as the opponent when the Bills first downs were under 28?
Formula: LET(query1,LET(query1,FILTER(A1:I1,C1="oakland raiders"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,7)))),FILTER(query1,CHOOSECOLS(query1,2)<28))
Formula2: LET(query1,LET(query1,FILTER(A2:I17,C2:C17="oakland raiders"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,7)))),FILTER(query1,CHOOSECOLS(query1,2)<28))
Level: hard