Table:
0
A
B
C
D
E
F
G
H
I
1
Game
Date
Team
Score
High points
High rebounds
High assists
Location Attendance
Record
2
17
December 2
L.A. Clippers
W 100–98 (OT)
Dirk Nowitzki (29)
Dirk Nowitzki (10)
Jason Kidd (8)
American Airlines Center 19,670
9–8
3
18
December 4
Phoenix
W 112–97 (OT)
Dirk Nowitzki (39)
Erick Dampier (14)
Jason Kidd (8)
American Airlines Center 19,813
10–8
4
19
December 6
Atlanta
W 100–98 (OT)
Dirk Nowitzki (24)
Dirk Nowitzki , Erick Dampier (11)
Jason Kidd (8)
American Airlines Center 19,966
11–8
5
20
December 9
San Antonio
L 126–133 (2OT)
Dirk Nowitzki (35)
Dirk Nowitzki (10)
Jason Kidd (12)
American Airlines Center 19,937
11–9
6
21
December 11
Charlotte
W 95–90 (OT)
Jason Terry (26)
Dirk Nowitzki (13)
Jason Kidd (7)
American Airlines Center 19,736
12–9
7
22
December 13
Oklahoma City
W 103–99 (OT)
Dirk Nowitzki (46)
Brandon Bass (9)
Jason Kidd (7)
American Airlines Center 20,190
13–9
8
23
December 15
Denver
L 88–98 (OT)
Dirk Nowitzki (27)
Erick Dampier (15)
José Juan Barea (9)
American Airlines Center 19,969
13–10
9
24
December 17
@ Toronto
W 96–86 (OT)
Jason Terry , Dirk Nowitzki (27)
Dirk Nowitzki (10)
Jason Terry (8)
Air Canada Centre 18,832
14–10
10
25
December 19
@ New Jersey
L 97–121 (OT)
Dirk Nowitzki (24)
Erick Dampier (7)
Jason Kidd (7)
Izod Center 9,889
14–11
11
26
December 21
@ Washington
W 97–86 (OT)
Jason Terry (25)
James Singleton (13)
Jason Kidd (11)
Verizon Center 15,582
15–11
12
27
December 23
Memphis
W 100–82 (OT)
Dirk Nowitzki (21)
Erick Dampier (9)
Jason Kidd (11)
American Airlines Center 20,200
16–11
13
28
December 25
@ Portland
W 102–94 (OT)
Dirk Nowitzki (30)
Jason Kidd (12)
Jason Kidd (10)
Rose Garden 20,643
17–11
14
29
December 26
@ Utah
L 88–97 (OT)
Jason Terry (26)
Jason Kidd , Dirk Nowitzki , Erick Dampier (8)
Jason Kidd (9)
EnergySolutions Arena 19,911
17–12
15
30
December 28
@ L.A. Clippers
W 98–76 (OT)
Josh Howard (29)
Brandon Bass , Josh Howard , Erick Dampier (9)
Josh Howard (7)
Staples Center 16,685
18–12

Questions and formulas:
Question: What was the date of game 21?
Formula: LET(query1,SUMMARIZE(B1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=21))
Formula2: LET(query1,SUMMARIZE(B2:B15,SUMX(A2:A15)),FILTER(query1,CHOOSECOLS(query1,2)=21))
Level: hard