Split #43 — the solution

The three rounds from November 11, 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 34

The numbers: 1, 9, 16, 19, 8, 20, 10, 12, 18, 13, 7, 3. 3 decoys.

The groups: 1 + 20 + 13, 9 + 18 + 7, 16 + 8 + 10, 19 + 12 + 3.

The decoys — triples that add to 34 but are not in the answer: 9 + 12 + 13; 19 + 8 + 7; 18 + 13 + 3.

Where to start: 1, 16, 20 and 10 sit in only one on-target triple, so their groups are certain — start there.

Round 2 — target 32

The numbers: 6, 18, 4, 15, 2, 19, 13, 14, 17, 11, 1, 8. 5 decoys.

The groups: 6 + 18 + 8, 4 + 15 + 13, 2 + 19 + 11, 14 + 17 + 1.

The decoys — triples that add to 32 but are not in the answer: 6 + 15 + 11; 18 + 13 + 1; 4 + 17 + 11; 2 + 13 + 17; 13 + 11 + 8.

Where to start: 19 and 14 sit in only one on-target triple, so their groups are certain — start there.

Round 3 — target 36

The numbers: 14, 13, 19, 17, 20, 10, 16, 5, 7, 12, 2, 9. 6 decoys.

The groups: 14 + 20 + 2, 13 + 16 + 7, 19 + 5 + 12, 17 + 10 + 9.

The decoys — triples that add to 36 but are not in the answer: 14 + 13 + 9; 14 + 17 + 5; 14 + 10 + 12; 19 + 10 + 7; 17 + 7 + 12; 20 + 7 + 9.

Where to start: 16 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.