Table:
0
A
B
C
D
E
F
1
Round
Clubs remaining
Clubs involved
Winners from previous round
New entries this round
Leagues entering at this round
2
Round 2
48
32
24
8
Superettan (8 teams)
3
Round 3
32
32
16
16
Allsvenskan
4
Round 4
16
16
16
none
none
5
Quarter-finals
8
8
8
none
none
6
Semi-finals
4
4
4
none
none

Questions and formulas:
Question: How many clubs remained when there were 4 winners from the previous round?
Formula: SUM(FILTER(B1, D1=4))
Formula2: SUM(FILTER(B2:B6, D2:D6=4))
Level: easy
Question: What is the maximum number of clubs remaining when the league entering at this round was allsvenskan?
Formula: MAXIFS(B1,F1,"Allsvenskan")
Formula2: MAXIFS(B2:B6,F2:F6,"Allsvenskan")
Level: easy
Question: How many different values of clubs involved were there when the league entering at this round was allsvenskan?
Formula: ROWS(UNIQUE(FILTER(C1, F1="Allsvenskan")))
Formula2: ROWS(UNIQUE(FILTER(C2:C6, F2:F6="Allsvenskan")))
Level: medium