Table:
0
A
B
C
D
E
F
G
1
Home team
Home team score
Away team
Away team score
Venue
Crowd
Date
2
North Melbourne
9.2 (56)
Richmond
13.7 (85)
Arden Street Oval
10,000
3 July 1943
3
Melbourne
16.14 (110)
St Kilda
12.10 (82)
Punt Road Oval
8,000
3 July 1943
4
Hawthorn
13.11 (89)
Footscray
11.13 (79)
Glenferrie Oval
16,000
3 July 1943
5
Fitzroy
15.18 (108)
Collingwood
9.11 (65)
Brunswick Street Oval
14,000
3 July 1943
6
South Melbourne
10.13 (73)
Carlton
15.13 (103)
Princes Park
13,000
3 July 1943

Questions and formulas:
Question: What day did St Kilda play as the away team?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="st kilda"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,C2:C6="st kilda"),7))
Level: medium