codebrew

Oct 19, 2026

Daily Trace

One puzzle a day from a real run of the code. Everyone gets the same one, and the next starts at 00:00 UTC.

This trace hasn't been reviewed yet. Every option on it still comes from the model's run.

Predict the next state

The run stops on step 11 of 31. Step back through what led here, then pick the state the next step shows.

Combination Sum

Input candidates 2, 9, 3 · target 7

StopSearch tree
22223the first call7call after choosing 25call after choosing 23call after choosing 2, returned1call after choosing 2, pruned✗call after choosing 3, running0
candidates
  1. 2
  2. 3
  3. 9
path
  1. 2
  2. 2
  3. 3
result[]
remaining0
  • CH1 path

path = [2, 2, 3] · result = [] · remaining 0

What does step 12 show?

Past traces