Table:
0
A
B
C
D
E
F
1
Race Name
Circuit
Date
Winning driver
Constructor
Report
2
I Rostock Osthafenkurs
Rostock
20 April
Paul Greifzu
BMW - Eigenbau
Report
3
I Bernau Autobahnschleife
Bernau
4 May
Rudolf Krause
BMW - Reif
Report
4
I Dessau Autobahnspinne
Dessau
11 May
Fritz Riess
Veritas-Meteor
Report
5
III Leipzig Stadtparkrennen
Leipzig
2 June
Edgar Barth
IFA - Kollektiv
Report
6
III Strassen-Rennen Halle-Saale-Schleife
Halle-Saale-Schleife
8 June
Edgar Barth
IFA - Kollektiv
Report
7
I Strassen-rennen Leipzig
Leipzig
17 August
Hans Stuck
AFM - BMW
Report
8
V DMV Grenzlandringrennen
Grenzlandring
31 August
Toni Ulmen
Veritas
Report
9
IV Sachsenringrennen
Sachsenring
7 September
Edgar Barth
EMW - BMW
Report

Questions and formulas:
Question: On what date was the I Dessau Autobahnspinne race?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="i dessau autobahnspinne"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,A2:A9="i dessau autobahnspinne"),3))
Level: medium
Question: Who was the winning driver in the Sachsenring circuit?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="sachsenring"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,B2:B9="sachsenring"),4))
Level: medium