Table:
0
A
B
C
D
E
F
1
Year
Men's singles
Women's singles
Men's doubles
Women's doubles
Mixed doubles
2
1975
Victor Yusim
No competition
Victor Yusim Michael Schneidman
No competition
No competition
3
1976
Michael Schneidman
Tineke Hof
Victor Yusim Michael Schneidman
Tineke Hof Devora Geffen
No competition
4
1977
Victor Yusim
Eva Unglick
Victor Yusim Michael Schneidman
Eva Unglick Chaya Grunstein
No competition
5
1978
Victor Yusim
Chaya Grunstein
Victor Yusim Michael Schneidman
Chaya Grunstein Carole Silman
Michael Rappaport Carole Silman
6
1979
Victor Yusim
Eva Unglick
Victor Yusim Michael Schneidman
Eva Unglick Chaya Grunstein
Nissim Duk Eva Unglick
7
1980
Yitzhak Serrouya
Elka Kalb
Nissim Duk Yitzhak Serrouya
Elka Kalb Irit Ben Shushan
Michael Rappaport Eva Unglick
8
1981
Johann Ratheyser
Adelhid Losek
Johann Rathyser Gerard Hofegger
Eva Unglick Irit Ben Shushan
Johann Ratheyser Adelheid Losek
9
1982
Andrew Downes
Lisa Salmon
David Spurling Stuart Spurling
Lisa Salmon J. Downes
David Spurling H. Blake
10
1983 1989
No competition
No competition
No competition
No competition
No competition
11
1990
Stephane Renault
Christelle Mol
Ricardo Fernandes Marco Vasconcelos
Christelle Mol Virginie Delvingt
Stephane Renault Elodie Mansuy
12
1991 1997
No competition
No competition
No competition
No competition
No competition
13
1998
Aivaras Kvedarauskas
Svetlana Zilberman
Aivaras Kvedarauskas Nir Yusim
Svetlana Zilberman Diana Koleva
Leon Pugatch Svetlana Zilberrman
14
1999 2005
No competition
No competition
No competition
No competition
No competition
15
2006
Petr Koukal
Maja Tvrdy
Luka Petric Mateuz Srekl
No competition
Luka Petric Maja Tvrdy
16
2007
Sho Sasaki
Tracey Hallam
Jochen Cassel Thomas Tesche
No competition
Valeriy Atrashenkov Elena Prus

Questions and formulas:
Question: Who won the mixed doubles the same year that Andrew Downes won the men's singles?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="andrew downes"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,B2:B16="andrew downes"),6))
Level: medium
Question: Who won the mixed doubles in the years that the men's doubles has no competition?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="no competition"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,D2:D16="no competition"),6))
Level: medium