Table:
0
A
B
C
D
E
1
Date
Tournament
Surface
Opponent in the final
Score
2
September 13, 1993
Hong Kong
Hard
Marianne Witmeyer
6–4, 3–6, 7–5
3
October 4, 1993
Taipei, Taiwan
Hard
Linda Wild
6–1, 7–6(4)
4
November 14, 1994
Taipei, Taiwan
Hard
Kyoko Nagatsuka
6–1, 6–3
5
October 2, 1995
Surabaya , Indonesia
Hard
Yi Jingqian
6–1, 6–1
6
October 7, 1996
Surabaya , Indonesia
Hard
Nana Miyagi
6–4, 6–0
7
October 14, 1996
Beijing , China
Hard (i)
Chen Li
6–3, 6–4

Questions and formulas:
Question: What was the name of the tournament that the final was played against Yi Jingqian?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="yi jingqian"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="yi jingqian"),2))
Level: medium
Question: Who was the final opponent in the tournament in Taipei, Taiwan on November 14, 1994?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(B1="taipei, taiwan")*(A1="november 14, 1994")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,(B2:B7="taipei, taiwan")*(A2:A7="november 14, 1994")),4))
Level: medium
Question: On October 14, 1996 who was the opponent in the final?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="october 14, 1996"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="october 14, 1996"),4))
Level: medium
Question: When playing against Yi Jingqian in the final on a hard surface what was the score?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="hard")*(D1="yi jingqian")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,(C2:C7="hard")*(D2:D7="yi jingqian")),5))
Level: medium
Question: Who was played against in the final on November 14, 1994?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="november 14, 1994"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="november 14, 1994"),4))
Level: medium