Puzzles

New Scientist Enigma

Weekly maths puzzles from New Scientist, posted and solved here. 428 enigmas tracked, with the magazine’s answer appearing about six weeks after each question is set.

Browse puzzles

Total

428

Answered

97.4% 417 of 428

Responses

8,289

Recent puzzles

26–50 of 428

Browse all

428 enigmas · Page 2 of 18

1755
Sudoprime II Peter G.Chamberlain Answered and confirmed
Answered 20
1754
Elementary Susan Denham Answered and confirmed
Answered 21
1753
Divisible In Reverse Richard England Answered and confirmed
Answered 33
1752
Pentagon Of Squares Susan Denham Answered and confirmed
Answered 28
1751
Rainbow Square Adrian Somerfield Answered and confirmed
Answered 15
1750
Navigating The Grid Ian Kay Answered and confirmed
Answered 35
1749
Genotype Peter G.Chamberlain Answered and confirmed
Answered 40
1748
Quo Vadis? Bob Walker Answered and confirmed
Answered 25
1747
Mind your Ps and Qs Susan Denham Answered and confirmed
Answered 72
1746
Square In Common Richard England Answered and confirmed
Answered 12
1745
Cutting Cubes Ian Kay Answered and confirmed
Answered 35
1744
Clive's Number Peter G.Chamberlain Answered and confirmed
Answered 16
1743
Order, Order! Susan Denham Answered and confirmed
Answered 14
1742
Chip-chop Adrian Somerfield Answered and confirmed
Answered 13
1741
Four Squares Ian Kay Answered and confirmed
Answered 36
1740
Sudoprime Peter G.Chamberlain Answered and confirmed
Answered 17
1739
Dodecagarden Susan Denham Answered and confirmed
Answered 19
1738
Two Perfect Squares Richard England Answered and confirmed
Answered 81
1737
Base Jumping Peter G.Chamberlain Answered and confirmed
Answered 51
1736
Child's Play Gwyn Owen Answered and confirmed
Answered 51
1735
A Pile Of Coloured Cubes Ian Kay Answered and confirmed
Answered 20
1734
Friendly Factors Susan Denham Answered and confirmed
Answered 18
1733
Astronomer Royal Adrian Somerfield Answered and confirmed
Answered 21
1732
Cache Up Front Bob Walker Answered and confirmed
Answered 43
1731
Power Play Susan Denham Answered and confirmed
Answered 57

428 enigmas · Page 2 of 18