Table:
0
A
B
C
D
E
F
1
Season
Teams
K League Classic
K-League Cup
FA Cup
Manager
2
1996
9
Runners-up
6th( A )
Runners-up
Kim Ho
3
1997
10
5th
6th( A ) 3rd( P )
Quarter-finals
Kim Ho
4
1998
10
Champions
6th( A ) 4th( PM )
Quarter-finals
Kim Ho
5
1999
10
Champions
Champions( A ) Champions( D )
1st round
Kim Ho
6
2000
10
5th
Champions( A ) 8th( D )
Quarter-finals
Kim Ho
7
2001
10
3rd
Champions( A )
1st round
Kim Ho
8
2002
10
3rd
4th( A )
Champions
Kim Ho
9
2003
12
3rd
No competition
Round of 32
Kim Ho
10
2004
13
Champions
4th( S )
Round of 16
Cha Bum-Kun
11
2005
13
10th
Champions( S )
Round of 16
Cha Bum-Kun
12
2006
14
Runners-up
12th( S )
Runners-up
Cha Bum-Kun
13
2007
14
3rd
Semi-finals( S )
Round of 16
Cha Bum-Kun
14
2008
14
Champions
Champions( S )
Round of 16
Cha Bum-Kun
15
2009
15
10th
Quarter-finals( PK )
Champions
Cha Bum-Kun
16
2010
15
7th
Semi-finals( PC )
Champions
Cha Bum-Kun Yoon Sung-Hyo
17
2011
16
4th
Semi-finals( RC )
Runners-up
Yoon Sung-Hyo
18
2012
16
4th
No Competition
Quarter-finals
Yoon Sung-Hyo

Questions and formulas:
Question: What K League classic had less than 10 teams?
Formula: LET(query1,SUMMARIZE(C1,SUMX(B1)),FILTER(query1,CHOOSECOLS(query1,2)<10))
Formula2: LET(query1,SUMMARIZE(C2:C18,SUMX(B2:B18)),FILTER(query1,CHOOSECOLS(query1,2)<10))
Level: hard
Question: How many teams played before 2008, had a K League Classic of runners-up, and a Manager of kim ho?
Formula: SUM(FILTER(B1, (A1<2008)*(C1="runners-up")*(F1="kim ho")))
Formula2: SUM(FILTER(B2:B18, (A2:A18<2008)*(C2:C18="runners-up")*(F2:F18="kim ho")))
Level: easy