Table:
0
A
B
C
D
E
1
Game
October
Opponent
Score
Record
2
1
8
@ Detroit Red Wings
4 - 1
0-1-0
3
2
11
@ Chicago Black Hawks
5 - 3
1-1-0
4
3
15
@ Montreal Canadiens
6 - 1
1-2-0
5
4
17
@ Toronto Maple Leafs
1 - 1
1-2-1
6
5
18
@ Boston Bruins
3 - 2
1-3-1
7
6
22
Boston Bruins
4 - 3
2-3-1
8
7
25
Montreal Canadiens
2 - 1
2-4-1
9
8
28
Chicago Black Hawks
6 - 1
2-5-1
10
9
31
@ Toronto Maple Leafs
4 - 1
2-6-1

Questions and formulas:
Question: What is the Opponent of the game after October 28?
Formula: LET(query1,SUMMARIZE(C1,SUMX(B1)),FILTER(query1,CHOOSECOLS(query1,2)>28))
Formula2: LET(query1,SUMMARIZE(C2:C10,SUMX(B2:B10)),FILTER(query1,CHOOSECOLS(query1,2)>28))
Level: hard
Question: What is the Opponent before October 31 with a Record of 2-3-1 after Game 5?
Formula: LET(query1,LET(query1,FILTER(A1:E1,E1="2-3-1"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,(CHOOSECOLS(query1,2)<31)*(CHOOSECOLS(query1,3)>5)))
Formula2: LET(query1,LET(query1,FILTER(A2:E10,E2:E10="2-3-1"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,(CHOOSECOLS(query1,2)<31)*(CHOOSECOLS(query1,3)>5)))
Level: hard