Table:
0
A
B
C
D
E
1
Game
Date
Opponent
Score
Series
2
1
April 8
New Jersey Devils
3–2
Flyers lead 1–0
3
2
April 10
New Jersey Devils
3–2
Flyers lead 2–0
4
3
April 12
@ New Jersey Devils
2–4
Flyers lead 2–1
5
4
April 14
@ New Jersey Devils
3–0
Flyers lead 3–1
6
5
April 17
New Jersey Devils
3–1
Flyers win 4–1

Questions and formulas:
Question: Which opponent was present on April 14?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="april 14"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,B2:B6="april 14"),3))
Level: medium