Table:
0
A
B
C
D
E
F
1
Date
Battles
Conflict
Combatants A
Combatants B
Result
2
17 September 1894
Battle of the Yalu River
First Sino-Japanese War
Imperial Japanese Navy
Beiyang Fleet
Japanese Victory.
3
7–12 February 1895
Battle of Weihaiwei
First Sino-Japanese War
Imperial Japanese Navy
Beiyang Fleet
Japanese Victory.
4
8–9 February 1904
Battle of Port Arthur
Russo-Japanese War
Imperial Japanese Navy
Russian Navy
Indecisive.
5
10 August 1904
Battle of the Yellow Sea
Russo-Japanese War
Imperial Japanese Navy
Russian Navy
Japanese Victory.
6
27–28 May 1905
Battle of Tsushima
Russo-Japanese War
Imperial Japanese Navy
Russian Navy
Japanese Victory.
7
16 December 1912
Battle of Elli
First Balkan War
Greek Navy
Ottoman Navy
Greek Victory.
8
18 January 1913
Battle of Lemnos
First Balkan War
Greek Navy
Ottoman Navy
Greek Victory.
9
8–19 August 1915
Battle of the Gulf of Riga
World War I
Kaiserliche Marine
Russian Navy
Russian Victory.
10
31 May – 1 June 1916
Battle of Jutland
World War I
Kaiserliche Marine
Royal Navy
Indecisive.
11
16 October – 3 November 1917
Battle of Moon Sound
World War I
Kaiserliche Marine
Russian Navy
German Victory.
12
3 July 1940
Battle of Mers-el-Kébir
World War II
Royal Navy
Vichy French Navy
British Victory.
13
9 July 1940
Battle of Calabria
World War II
Royal Navy
Italian Navy
Indecisive.
14
23–25 September 1940
Battle of Dakar
World War II
Royal Navy
Vichy French Navy
Vichy French Victory.
15
24 May 1941
Battle of the Denmark Strait
World War II
Royal Navy
Kriegsmarine
German Victory.
16
26–27 May 1941
Sinking of the Bismarck
World War II
Royal Navy
Kriegsmarine
Allied Victory.
17
8–16 November 1942
Battle of Casablanca
World War II
United States Navy
Vichy French Navy
American Victory.
18
14–15 November 1942
Second Battle of Guadalcanal
World War II
United States Navy
Imperial Japanese Navy
American Victory.
19
26 December 1943
Battle of North Cape
World War II
Royal Navy
Kriegsmarine
Allied Victory.

Questions and formulas:
Question: With the Royal Navy as Combatants B, what was the result?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="Royal Navy"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F19,E2:E19="Royal Navy"),6))
Level: medium
Question: In what conflicts was the Italian Navy Combatants B?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="Italian Navy"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F19,E2:E19="Italian Navy"),3))
Level: medium
Question: How many battles resulted in Battle of the Yellow Sea?
Formula: ROWS(UNIQUE(FILTER(F1, B1="Battle of the Yellow Sea")))
Formula2: ROWS(UNIQUE(FILTER(F2:F19, B2:B19="Battle of the Yellow Sea")))
Level: medium