Split #24 — the solution

The three rounds from October 23, 2026: twelve numbers each, split into four groups of three that add to the target — the one way each round allows, with its decoys and where the reasoning starts.

Round 1 — target 32

The numbers: 20, 14, 17, 10, 1, 15, 5, 11, 18, 2, 9, 6. 3 decoys.

The groups: 20 + 10 + 2, 14 + 17 + 1, 15 + 11 + 6, 5 + 18 + 9.

The decoys — triples that add to 32 but are not in the answer: 20 + 1 + 11; 17 + 10 + 5; 17 + 9 + 6.

Where to start: 14, 15, 18 and 2 sit in only one on-target triple, so their groups are certain — start there.

Round 2 — target 25

The numbers: 10, 2, 18, 9, 11, 1, 6, 7, 4, 5, 19, 8. 5 decoys.

The groups: 10 + 7 + 8, 2 + 4 + 19, 18 + 1 + 6, 9 + 11 + 5.

The decoys — triples that add to 25 but are not in the answer: 10 + 9 + 6; 10 + 11 + 4; 2 + 18 + 5; 11 + 6 + 8; 1 + 5 + 19.

Where to start: 7 sits in only one on-target triple, so its group is certain — start there.

Round 3 — target 29

The numbers: 12, 10, 6, 16, 13, 4, 20, 9, 2, 8, 15, 1. 6 decoys.

The groups: 12 + 2 + 15, 10 + 6 + 13, 16 + 4 + 9, 20 + 8 + 1.

The decoys — triples that add to 29 but are not in the answer: 12 + 16 + 1; 12 + 13 + 4; 12 + 9 + 8; 10 + 4 + 15; 6 + 8 + 15; 13 + 15 + 1.

Where to start: 20 and 2 sit in only one on-target triple, so their groups are certain — start there.

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About Split

Split is Noggin’s number puzzle, on the second shelf: twelve numbers into four groups of three, three rounds a day, outside the daily line-up. How to play Split, or play today’s.