Table:
0
A
B
C
D
E
F
1
Round (Leg)
Date
Opponent
Venue
Result
Attendance
2
2 (1)
22 September 1987
Fulham
Away
5–1
4,357
3
2 (2)
7 October 1987
Fulham
Home
2–1
6,408
4
3
27 October 1987
Charlton Athletic
Away
1–0
3,629
5
4
18 November 1987
Reading
Away
0–0
6,784
6
4R
24 November 1987
Reading
Home
1–0
10,448
7
5
19 January 1988
Luton Town
Away
0–2
11,022

Questions and formulas:
Question: What date has 3 as the round (leg)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1=3),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,A2:A7=3),2))
Level: medium