Cognitive

River Crossing

Move each group safely without leaving incompatible pairs on either bank, using structured planning rather than trial-and-error.

Quick Drill
Short logic-planning task designed to test sequencing, constraint handling, and disciplined decision-making under simple rules.
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The Early Bird

Free
Level 1 of 6Boat: 1 seatsUsed: 0/1Best: 0Cleared: 0/3

Level 1 - The Early Bird

Choose a level to begin

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About this task

Practise structured planning under simple but unforgiving rules.

River Crossing works best as a lighter logic drill. The goal is to plan a safe sequence of moves, hold the constraints in mind, and avoid preventable errors once the rule set becomes more crowded.

Rules in play
The farmer travels with the boat. The bank without the boat is unsafe: if a predator and its prey are together there, the prey gets eaten.
How to play: Tap an animal on the same side as the boat to load it. Tap it on the boat to unload. Then press Cross.
Boat: Left
Unsafe bank: Right
Active eating rules
🐔 -> 🪱Chicken eats Worm
Special rules
Predation: 🐔 Chicken eats 🪱 Worm.

Left Bank

Farmer here
Empty
Left dock
Right dock
⛵ BoatFarmer aboard
Tap a seat to unload

Right Bank

Farmer away
Empty
Level Selection
Levels 1-3 are free. Levels 4-6 add more complex rule combinations with Pro.
Current level: Level 1
What this module tests
Constraint-based planning

This module tests whether you can hold the rules in mind, sequence moves cleanly, and avoid avoidable logic errors once constraints start interacting.

When to use it
Short logic drill

Use this when you want a lighter structured-planning task that still rewards careful reasoning, sequencing, and error control.

Best next step
Return to broader reasoning

After a few clean levels here, move back into Abstract Reasoning, Number Patterns, or a mixed mock to apply the same disciplined thinking in more assessment-style formats.

How to use this module

Use this when planning discipline needs sharpening

River Crossing is lighter than the main reasoning modules, but it is still useful as a structured planning task. It works best when you want to practise sequencing and constraints without a full timed question set.

Module type

Quick drill built around rule constraints, sequencing, and avoiding unsafe move combinations.

Best use

Open this for a shorter planning session or when you want to reset focus before returning to denser reasoning practice.

Then do this

Follow with Abstract Reasoning, Number Patterns, or a mixed mock when you want the planning discipline to carry into broader assessment tasks.

Why this module matters

River Crossing is a structured logic task where you move animals across the river without leaving predators alone with prey. It rewards planning, sequencing, and careful decision-making under constraints.

NeuralPrep includes free starter levels as well as more advanced Pro levels with added mechanics such as safe pairs, heavy animals, and environmental restrictions.