Table:
0
A
B
C
D
E
F
G
H
I
J
1
1910s
1920s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2
1910
1920
1930
1940
1950
1960
1970
1980
1990
2000
3
1911
1921
1931
1941
1951
1961
1971
1981
1991
2001
4
1912
1922
1932
1942
1952
1962
1972
1982
1992
2002
5
1913
1923
1933
1943
1953
1963
1973
1983
1993
2003
6
1914
1924
1934
1944
1954
1964
1974
1984
1994
2004
7
1915
1925
1935
1945
1955
1965
1975
1985
1995
2005
8
1916
1926
1936
1946
1956
1966
1976
1986
1996
2006
9
1917
1927
1937
1947
1957
1967
1977
1987
1997
2007
10
1918
1928
1938
1939
1958
1968
1978
1988
1998
2008
11
1919
1929
1939
1949
1959
1969
1979
1989
1999
2009

Questions and formulas:
Question: What is the corresponding 1930s for 2000 and 1940?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:J1,(J1=2000)*(D1<1940)),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:J11,(J2:J11=2000)*(D2:D11<1940)),3))
Level: medium
Question: What would be the correct year in the 1940s, if the 1980s is before 1986, the 1990s is before 1995, the 1970s is before 1973, and the 2000s are after 2001?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:J1,(H1<1986)*(I1<1995)*(G1<1973)*(J1>2001)),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:J11,(H2:H11<1986)*(I2:I11<1995)*(G2:G11<1973)*(J2:J11>2001)),4))
Level: medium
Question: What is the range for the 1980s that correspond to a grid 1910s of 1912, and a 1940s before 1942
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:J1,(A1=1912)*(D1<1942)),8))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:J11,(A2:A11=1912)*(D2:D11<1942)),8))
Level: medium
Question: what is the lowest year in the 1910s that would be in the row were the 1950s are no larger than 1952, and the 1980s are no smaller than 1981?
Formula: MIN(FILTER(A1, (E1<1952)*(H1>1981)))
Formula2: MIN(FILTER(A2:A11, (E2:E11<1952)*(H2:H11>1981)))
Level: easy