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

8,290

Recent puzzles

401–425 of 428

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428 enigmas · Page 17 of 18

1328
Prime Pyramid Mike Thorley Answered and confirmed
Answered 2
1327
At The Crucible Richard England Answered and confirmed
Answered 1
1323
Testing Arithmetic Susan Denham Answered and confirmed
Answered 1
1317
Eight Times Richard England Answered and confirmed
Answered 1
1316
Clueless Susan Denham Answered and confirmed
Answered 2
1315
Going For Gold Richard England Answered and confirmed
Answered 1
1314
Times Table Susan Denham Answered and confirmed
Answered 1
1292
Naturellement C. W. Haigh Unanswered
Unanswered 2
1291
Carrés Pairs et Impairs Richard England Answered
Answered 4
1290
Marbled patterns Susan Denham Unanswered
Unanswered 1
1289
Alternate chain Richard England Unanswered
Unanswered 11
1288
How many a’s here? Keith Austin Unanswered
Unanswered 1
1287
Blue Bin Colin Singleton Unanswered
Unanswered 1
1286
Mixed singles Susan Denham Unanswered
Unanswered 0
1285
Triangular square Richard England Answered and confirmed
Answered 2
1284
Os and Xs offside Keith Austin Unanswered
Unanswered 0
1283
Tick which applies Susan Denham Answered and confirmed
Answered 2
1282
Amen Roger Schofield Answered and confirmed
Answered 4
1281
Ingredients in order Keith Austin Answered and confirmed
Answered 1
1280
Draws are not enough Richard England Unanswered
Unanswered 0
1279
Big deal Bob Walker Answered and confirmed
Answered 2
1278
Natural numbers Susan Denham Answered and confirmed
Answered 3
1277
Colourfields Keith Austin Unanswered
Unanswered 0
1276
Multiple byes Richard England Unanswered
Unanswered 0
1275
Back to basics Susan Denham Answered
Answered 1

428 enigmas · Page 17 of 18