Table:
0
A
B
C
D
E
F
G
H
I
1
Position
Race number
Sail number
Yacht
State/country
Yacht type
LOA (Metres)
Skipper
Elapsed time d:hh:mm:ss
2
1
XI
10001
Wild Oats XI
NSW
RP100
30.00
Mark Richards
2:08:52:33
3
2
03
AUS 03
Ichi Ban
NSW
Jones 70
21.50
Matt Allen
2:12:42:23
4
3
10
M10
Skandia
VIC
IRC Maxi 98
30.00
Grant Wharington
2:12:58:56
5
4
36
1836
Yendys
NSW
Reichel Pugh 55
16.80
Geoff Ross
2:23:45:26
6
5
69
6952
Wot Yot
NSW
TP 52
15.85
Graeme Wood
3:02:34:28
7
6
60
60000
Loki
NSW
Reichel Pugh 60
18.29
Cameron Miles
3:03:01:02
8
7
89
8899
Quantum Racing
NSW
Cookson 50
15.20
Ray Roberts
3:03:02:29
9
8
28
GER4014
DHL
NSW
Volvo 60
19.44
Mitch Booth
3:06:04:04
10
9
93
93
Merlin
NSW
Kaiko 51
15.60
David Forbes
3:08:35:37

Questions and formulas:
Question: what are all the state/nation where the race number is 36
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,B1=36),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I10,B2:B10=36),5))
Level: medium