CAT LRDI: Puzzles

Why this matters

Puzzles is a broad umbrella covering several distinct Logical Reasoning formats, and it is often the sub-topic within LRDI where candidates report feeling most "stuck" partway through a question, having invested significant time before realizing an early assumption was wrong.

What you'll learn

The common puzzle formats within this category, why getting stuck happens more here than elsewhere in LRDI, and how to recover efficiently when it does.

Common puzzle formats

• Distribution puzzles — dividing items, people, or resources across groups according to constraints
• Sequencing puzzles — ordering events, people, or items based on relative clues
• Blood relations — deducing family relationships from a set of statements
• Direction sense — tracking movement or position based on directional clues

Why getting stuck happens more often here

Many puzzle formats in this category involve deducing information incrementally, where an early clue can be interpreted two different ways and only later clues reveal which interpretation was correct. A candidate who commits early to one interpretation without flagging it as an assumption can spend several minutes building on a wrong foundation before the contradiction becomes obvious.

A practical approach for recovering when stuck

1. When a clue is genuinely ambiguous, note both possible interpretations rather than silently picking one
2. If a contradiction appears partway through, backtrack to the last ambiguous point rather than restarting from scratch
3. For blood relations specifically, drawing a simple family tree diagram as statements are read prevents needing to hold multiple generations in memory at once
4. For direction sense, sketching the path taken, rather than tracking it mentally, prevents compounding a single directional error across several steps

A note on time allocation

Because puzzles carry higher risk of getting stuck than arrangements or DI sets, it is often reasonable to set a firmer internal time limit before attempting one — for example, deciding in advance to abandon a puzzle that has produced no confirmed deductions after a set number of minutes, rather than continuing indefinitely on the assumption that a breakthrough is close.

What's next

Return to CAT Syllabus for the complete LRDI topic map, or move to CAT 12-Month Preparation Plan or CAT 3-Month Preparation Plan to sequence your LRDI preparation against a timeline.

Part of: CAT Skill Building

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