Table:
0
A
B
C
D
E
F
1
Round
Date
Opponent
Score
Attendance
Report
2
FR
20 September
Dnipro
0–0
15,431
BBC Sport
3
FR
4 October
Dnipro
1–1
26,275
BBC Sport
4
GS
25 October
Panathinaikos
0–3
8,154
BBC Sport
5
GS
8 November
Lokomotiv Moscow
1–1
18,843
BBC Sport
6
GS
29 November
Atlético Madrid
0–2
30,000
BBC Sport
7
GS
20 December
Copenhagen
4–0
20,446
BBC Sport
8
Ro32
13 February
Bayern Munich
2–2
20,047
BBC Sport
9
Ro32
21 February
Bayern Munich
5–1
66,000
BBC Sport

Questions and formulas:
Question: On what Date was the Opponent Panathinaikos?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="panathinaikos"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,C2:C9="panathinaikos"),2))
Level: medium