Table:
0
A
B
C
D
E
1
Game
Date
Opponent
Score
Series
2
1
April 5
@ Washington Capitals
2–3 OT
Capitals lead 1–0
3
2
April 6
@ Washington Capitals
3–2
Series tied 1–1
4
3
April 8
Washington Capitals
3–4 OT
Capitals lead 2–1
5
4
April 9
Washington Capitals
5–2
Series tied 2–2
6
5
April 11
@ Washington Capitals
8–5
Flyers lead 3–2
7
6
April 13
Washington Capitals
4–3
Flyers win 4–2

Questions and formulas:
Question: what team played on april 9
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="april 9"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="april 9"),3))
Level: medium