Table:
0
A
B
C
D
E
1
Opposing Team
Against
Date
Venue
Status
2
Natal
0
May 17,1972
Durban
Tour match
3
Western Province
6
May 20,1972
Cape Town
Tour match
4
SA Rugby Fed XV
6
May 22,1972
Cape Town
Tour match
5
SA Leopards
3
May 24,1972
Port Elizabeth
Tour match
6
Northern Transvaal
13
May 27,1972
Pretoria
Tour match
7
Giqualand West
21
May 30,1972
Kimberley
Tour match
8
South Africa
9
June 3,1972
Ellis Park , Johannesburg
Test Match

Questions and formulas:
Question: What is date when against is smaller than 6 and location was durban?
Formula: LET(query1,LET(query1,FILTER(A1:E1,D1="durban"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<6))
Formula2: LET(query1,LET(query1,FILTER(A2:E8,D2:D8="durban"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<6))
Level: hard