Table:
0
A
B
C
D
E
1
Name
Actual version
System
Platform
License
2
MESS
0.147
Various computers and consoles
Cross-platform
Custom
3
Fellow
0.5.1
Amiga
Windows
GPL
4
UAE
0.8.29
Amiga
Unix, BeOS , NextStep
GPL
5
E-UAE
0.8.29wip4
Amiga
Unix, OS X, BeOS
GPL
6
WinUAE
2.6.0
Amiga
Windows
GPL
7
UAE4All
rc1
Amiga
Windows, Linux, Dreamcast , Dingoo
GPL
8
PocketUAE
20060121
Amiga
Pocket PC
GPL

Questions and formulas:
Question: Which License has a System of amiga, and a Name of pocketuae?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="amiga")*(A1="pocketuae")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,(C2:C8="amiga")*(A2:A8="pocketuae")),5))
Level: medium
Question: What name has a License of gpl, and an Actual version of 0.8.29wip4?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="gpl")*(B1="0.8.29wip4")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,(E2:E8="gpl")*(B2:B8="0.8.29wip4")),1))
Level: medium
Question: Which platform has an Actual version of 0.147?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="0.147"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="0.147"),4))
Level: medium
Question: Which name has a License of gpl, and a Platform of windows?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="gpl")*(D1="windows")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,(E2:E8="gpl")*(D2:D8="windows")),1))
Level: medium
Question: Which system is named mess?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="mess"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="mess"),3))
Level: medium
Question: Which Platform has an Actual version of 0.8.29?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="0.8.29"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="0.8.29"),4))
Level: medium