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
1995
Vitalii Sekerinau
Olga Koseli
Maxim Karpenko Vitalii Sekerianu
Marina Buruian Tatiana Gazia
Maxim Karpenko Marina Buruian
3
1996
Maxim Karpenko
Marina Buruian
Maxim Karpenko Vitalii Sekerianu
Marina Buruian Tatiana Gazia
Pavel Scicico Marina Buruian
4
1997
Vitalii Sekerianu
Marina Buruian
Maxim Karpenko Vitalii Sekerianu
Marina Buruian Tatiana Gazia
Maxim Karpenko Marina Buruian
5
1998
Maxim Karpenko
Marina Buruian
Maxim Karpenko Egor Ursatii
Marina Buruian Nadia Litvinenko
Maxim Karpanenko Marina Buruian
6
1999
Egor Ursatii
Nadejda Litvinenko
Maxim Karpenko Egor Ursatii
Marina Buruian Nadia Litvinenko
Maxim Karpanenko Nadia Litvinenko
7
2000
Egor Ursatii
Nadejda Litvinenko
Maxim Karpenko Egor Ursatii
Marina Buruian Nadia Litvinenko
Maxim Karpanenko Nadia Litvinenko
8
2001
Maxim Karpenko
Olga Kuzmenko
Maxim Karpenko Vladimir Cecoi
Nadia Litvinenko Olga Cosel
Maxim Karpanenko Nadia Litvinenko
9
2002
Maxim Karpenko
Olga Kuzmenko
Maxim Karpenko Egor Ursatii
Nadia Litvinenko Olga Kuzmenko
Maxim Karpenko Nadia Litvinenko
10
2003
Egor Ursatii
Olga Kuzmenko
Maxim Karpenko Egor Ursatii
Olga Kuzmenko Oxana Cernega
Maxim Karpenko Nadia Litvinenko

Questions and formulas:
Question: Who won women's doubles in 1998?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1=1998),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,A2:A10=1998),5))
Level: medium