Thursday 29 October 2026 · River crossing · Steady
Kind of thinking: PlanningYukti #20 was a Steady river crossing, the puzzle for Thursday 29 October 2026. Yukti, a daily logic puzzle at playyukti.com, gives everyone the same puzzle each day. Here is the puzzle, and its shortest route with the reason for every step.
The puzzle
Get everyone across the river.
The boat carries you and 2 passengers. The child can also row without you, but only you keep everyone safe.
Everyone is safe while you're with them. Without you, these can't be left together, on a bank or in the boat:
- the mouse with the cheese or the corn
- the goose or the chicken with the corn
What is the shortest route?
The shortest route is 5 moves. Each step says why it works.
- 1
Take the cheese and the corn across.
The mouse, the goose, the chicken, and the child are safe together.
- 2
Row back alone.
The cheese and the corn are safe together.
- 3
Take the mouse and the child across.
Taking the chicken and the child instead works too.
- 4
The child rows back.
The cheese, the mouse, and the corn are safe together.
- 5
The goose, the chicken, and the child row across.
Everyone is across.
Step 4 is the key step: you bring something back. Sometimes going back is the shortest way forward.
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