Analytical Reasoning (Logic Games): Retired From the LSAT in August 2024
Logic Games left the LSAT in August 2024. Kept as history: old prep books and LSAT-India still use it, and the skills moved into Logical Reasoning.
18 topics · 72 questions
Each topic is a path, not a menu: work down it in order and every question builds on the one above. Click any of them to watch the answer draw itself.
What Analytical Reasoning Measured, and Why It Is Gone
- How it worksHow does a logic game measure your grip on a structure of relationships rather than your knowledge?
- How it worksWalk me through what a setup, a rule list, and a question set look like laid out together.
- Common mistakeWhy isn't Analytical Reasoning still on the LSAT, and what took its place in August 2024?
- Going furtherWhat happens to a student studying from a prep book that still teaches four logic games per test?
Why LSAC Replaced Logic Games With a Second Logical Reasoning Section
- How it worksHow does a puzzle that rewards drawing disadvantage a test taker who cannot see the page?
- How it worksWhy did LSAC replace Logic Games with a second Logical Reasoning section, and what carried over?
- Common mistakeWhy isn't the removal of Logic Games a sign that the LSAT got easier?
- Going furtherWhat changed in average LSAT scores after hundreds of thousands of test takers sat the new format?
- Ties togetherHow does the deductive skill Logic Games trained show up inside a single Logical Reasoning stimulus?
The Three Relationship Types: Spatial, Ordering in Time, Group Membership
- How it worksHow do spatial position, ordering in time, and group membership each produce a different diagram?
- How it worksWalk me through spotting which of the three relationship types a setup is built on in ten seconds.
- Worked exampleShow me the same six entities drawn once as an order, once as two groups, and once as a seating chart.
- Going furtherWhat happens to the diagram when one setup mixes ordering with group membership?
The Setup, the Rules, and the Deduction Chain
- How it worksHow does a rule act as a physical barrier that blocks an entity from entering an illegal slot?
- How it worksWalk me through combining two rules into a block that fills slots you were never told about.
- Worked exampleWalk me through deducing F's slot when five slots exist, F is before G, G is before H, and H is fourth.
- Common mistakeWhy isn't rereading the rules on every question a substitute for deducing them once up front?
- Going furtherWhat changes in the diagram when a rule says at least one of two entities must be included?
Basic Linear Sequencing Games
- How it worksHow does a row of numbered slots turn ordering rules into blocks, gaps, and forbidden positions?
- How it worksWalk me through notating not-laws, the slots an entity is banned from, under a linear diagram.
- Worked exampleWalk me through ordering five films where B is third, A is before C, and D is immediately after C.
- Going furtherWhat changes when a linear game gives you six entities for only five numbered slots?
Advanced Linear Games With Stacked Rows
- How it worksHow does a stacked diagram let a rule about the day and a rule about the color meet in one column?
- Worked exampleShow me a two-row diagram for four appointments where each has a time slot and one of two doctors.
- Going furtherWhat happens to a stacked game when a third row of attributes is added on top?
Circular and Pure Sequencing Games
- How it worksHow does a circular diagram change what across from and next to actually mean?
- How it worksWalk me through building a pure sequencing tree where only relative order is ever fixed.
- Worked exampleShow me the sequencing tree when P is before Q, P is before R, Q is before S, and R is before S.
- Common mistakeWhy isn't a pure sequencing chain the same as knowing each entity's numbered position?
In/Out Grouping and Selection Games
- How it worksHow does a conditional rule act as an arrow that empties one bin into the other?
- How it worksWalk me through reading a chain of conditionals and their contrapositives across an in-out diagram.
- Worked exampleWalk me through an in-out game where selecting M forces N out, and N being out forces P in.
- Common mistakeWhy isn't the contrapositive of if M then not N just the same rule written backwards?
- Ties togetherHow does the in-out arrow in a selection game turn into a sufficient-necessary arrow in Logical Reasoning?
Defined, Undefined, and Partially Defined Grouping
- How it worksHow does a fixed group size let you count your way to a deduction that no rule ever stated?
- How it worksWalk me through the difference between a defined, an undefined, and a partially defined grouping setup.
- Worked exampleShow me the numeric distributions when eight entities split into three groups with at least two each.
- Going furtherWhat changes about your counting when group sizes are given only as a minimum?
Grouping Games With Repeated Entities
- How it worksHow does a game with reusable entities turn a fixed count into a range of possibilities?
- Worked exampleShow me the distributions when three shifts must be filled from four workers who may each work twice.
- Common mistakeWhy isn't every grouping game one where each entity is used exactly once?
Matching and Assignment Games
- How it worksHow does a matching grid let you rule out a pairing by crossing one cell off the board?
- How it worksWalk me through filling a matching grid where every row and every column has exactly one mark.
- Worked exampleShow me the grid deduction when three students each take one of three languages and R does not take Greek.
- Going furtherWhat changes in the grid when one attribute can be shared by more than one entity?
Hybrid Games
- How it worksHow do you stack an ordering row and a grouping bin into one diagram that serves both rule types?
- Worked exampleWalk me through a hybrid where four presenters are ordered and each is also assigned to one of two rooms.
- Going furtherWhat happens when a hybrid game's grouping rules end up fixing the order entirely?
Pattern Games
- How it worksHow does a pattern game ask you to extend a rule outward rather than fill a diagram in?
- Worked exampleShow me the pattern when each runner in a relay must start exactly two positions after the previous one.
- Common mistakeWhy isn't a pattern game solvable by the brute-force listing that cracks a small linear game?
Acceptability Questions
- How it worksHow does testing one rule at a time against five candidate arrangements kill four of them fast?
- Worked exampleWalk me through eliminating four answer choices on an acceptability question using three rules in order.
- Going furtherWhat changes about your approach when an acceptability stem asks which order could not work?
Must Be True, Could Be True, Cannot Be True, Must Be False
- How it worksHow do must be true and cannot be true sit at opposite ends of one spectrum of possibility?
- How it worksWalk me through turning a could-be-true stem into a hunt for one single working arrangement.
- Worked exampleWalk me through proving that H cannot be third when H is after G and G is after F in a four-slot order.
- Common mistakeWhy isn't the opposite of must be true the same as must be false?
- Ties togetherHow does a must-be-true stem in a logic game match a must-be-true stem in Logical Reasoning?
Local and Conditional Questions
- How it worksHow does a local condition trigger a cascade of deductions the master diagram never had?
- How it worksWalk me through copying the master diagram and adding one temporary condition to the copy.
- Worked exampleWalk me through the cascade in a five-slot game when M is placed second and that forces N into fifth.
- Common mistakeWhy isn't a deduction made inside a local question allowed to travel to the next question?
Rule Substitution, Maximum/Minimum, and Complete-and-Accurate Lists
- How it worksHow does a rule substitution question test whether two different rules carve out the same possibilities?
- How it worksWalk me through counting the largest number of entities a group can hold under two conflicting rules.
- Worked exampleShow me the complete and accurate list of slots F can occupy in a five-slot game where F is after G.
- Common mistakeWhy isn't a substitute rule acceptable when it merely covers every case the original rule covered?
- Going furtherWhat changes about a maximum question when a rule sets a floor instead of a ceiling?
Where the Skills Went: Conditional Reasoning in Logical Reasoning
- How it worksHow does a sufficient-necessary arrow behave the same whether it lives in a game or in an argument?
- How it worksWalk me through chaining three conditionals in an argument the way you chained rules in a game.
- Worked exampleWalk me through the valid and invalid moves from all lawyers read contracts, and Dana reads contracts.
- Ties togetherHow does the necessary-assumption gap in an argument match the missing rule in an unsolvable game?
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