The Collection
Photo — Mohamed Benziane, UnsplashEvery logic puzzle here is machine-checked by a solver before it is published — one provable solution, no ambiguous clues. Classic imports from the public domain are labeled until they pass review. Browse, attempt, and reveal the proof.
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Showing 50 of 175 puzzles
The Five Platforms: Priya, Zara, Keiko, Luca, and Jonas
Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The traveler reading a guidebook …
The Five Desks: Noor, Finn, Maya, Leo, and Tomás
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The owner of the green mug is directl…
The Five Seats: Farid, Bao, Chiara, Dmitri, and Esi
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The guest who brought curry is immedi…
The Five Plots: Hana, June, Kwame, Ibrahim, and Rafael
Five plots stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Kwame is immediately to the right of …
The Five Houses: The Brit, the Dog Owner, and the Gardener
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The rabbit owner is immediately to t…
The Five Houses: The Baker, the Brit, and the Person in the Green House
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The person in the green house is dir…
The Five Desks: Finn, Tomás, Inés, Noor, and Leo
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The owner of the red mug is immediate…
The Five Desks: Maya, Noor, Inés, Finn, and Tomás
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The orchid keeper is immediately to t…
The Five Desks: Leo, Maya, Noor, Inés, and Finn
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The Swift programmer is immediately t…
The Five Shelves: Tanaka, Moreau, Petrova, Vásquez, and Lindqvist
Five shelves stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The author whose book holds a press…
The Five Houses: The Cat Owner, the German, and the Coffee Drinker
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The tea drinker is immediately to th…
The Five Platforms: Jonas, Mateo, Keiko, Luca, and Priya
Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The traveler with the duffel bag …
The Five Desks: Leo, Tomás, Noor, Finn, and Maya
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Maya is immediately to the right of t…
The Five Plots: Ibrahim, Kwame, Rafael, June, and Hana
Five plots stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The gardener who waters on Wednesday …
The Five Shelves: Petrova, Lindqvist, Vásquez, Tanaka, and Moreau
Five shelves stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The author with the spiral-bound ed…
The Five Houses: The Coffee Drinker, the Cat Owner, and the Painter
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The beer drinker is immediately to t…
The Five Houses: The Person in the Yellow House, the Painter, and the Coffee Drinker
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The water drinker is immediately to …
The Five Houses: The Beer Drinker, the Horse Keeper, and the Painter
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The beer drinker is not the person i…
The Five Seats: Bao, Farid, Dmitri, Esi, and Chiara
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The guest who brought honey is somewh…
The Five Plots: Kwame, Lena, June, Ibrahim, and Hana
Five plots stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Hana is immediately to the left of th…
The Five Platforms: Keiko, Mateo, Jonas, Priya, and Zara
Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Priya is immediately to the left …
The Five Houses: The Dane, the Person in the Yellow House, and the Dog Owner
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The Norwegian is immediately to the …
The Five Platforms: Jonas, Priya, Zara, Luca, and Mateo
Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The traveler reading a manual is …
The Five Plots: June, Kwame, Lena, Ibrahim, and Hana
Five plots stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The gardener behind the hedge is some…
The Five Desks: Tomás, Noor, Leo, Finn, and Maya
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The Go programmer is immediately to t…
The Five Plots: Rafael, Kwame, June, Hana, and Lena
Five plots stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The gardener with the spade is not th…
The Five Houses: The Dane, the Chess Player, and the Person in the Grey House
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The juice drinker is immediately to …
The Five Seats: Amara, Chiara, Farid, Esi, and Dmitri
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The guest who brought flowers is imme…
The Five Seats: Dmitri, Esi, Farid, Bao, and Chiara
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The guest who brought lasagna is some…
The Five Platforms: Jonas, Keiko, Mateo, Zara, and Luca
Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The traveler reading a novel is i…
The Five Seats: Amara, Chiara, Dmitri, Farid, and Bao
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The guest who brought honey is somewh…
The Five Plots: Lena, Rafael, June, Ibrahim, and Kwame
Five plots stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The lettuce grower is somewhere to th…
The Five Houses: The Tea Drinker, the Sailor, and the Person in the Yellow House
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The person in the red house is immed…
The Five Platforms: Jonas, Priya, Keiko, Mateo, and Luca
Five platforms stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The traveler bound for Bruges is …
The Five Lanes: Dario, Cleo, Bruno, Aiko, and Elif
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The driver of the blue car is immedia…
The Five Seats: Esi, Amara, Dmitri, Chiara, and Bao
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Esi is immediately to the left of the…
The Five Lanes: Cleo, Dario, Elif, Gustav, and Aiko
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Elif is somewhere to the left of the …
The Five Houses: The Person in the Blue House, the Baker, and the Dog Owner
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The person in the blue house is dire…
The Five Lanes: Aiko, Bruno, Elif, Dario, and Cleo
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The driver with the hawk mascot is im…
The Five Houses: The Fish Keeper, the Person in the White House, and the Sailor
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The baker is directly next to the fi…
The Five Lanes: Gustav, Bruno, Elif, Cleo, and Aiko
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Bruno is immediately to the right of …
The Five Desks: Inés, Leo, Noor, Maya, and Tomás
Five desks stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Noor is immediately to the left of th…
The Five Lanes: Elif, Aiko, Bruno, Dario, and Gustav
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The driver running on petrol is somew…
The Five Houses: The Brit, the Tea Drinker, and the Gardener
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The person in the yellow house is no…
The Five Lanes: Gustav, Bruno, Cleo, Dario, and Elif
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Bruno is directly next to the driver …
The Five Houses: The Person in the Yellow House, the Baker, and the Coffee Drinker
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The tea drinker is immediately to th…
The Five Houses: The Horse Keeper, the Chess Player, and the Coffee Drinker
Five houses stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The person in the green house is som…
The Five Lanes: Gustav, Aiko, Elif, Dario, and Bruno
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The driver with the fox mascot is dir…
The Five Lanes: Cleo, Aiko, Dario, Gustav, and Elif
Five lanes stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The driver with the shark mascot is i…
The Five Seats: The Guest From Hanoi, the Malbec Drinker, and the Guest Who Brought Candles
Five seats stand in a row, numbered 1 to 5 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. The Chianti drinker is immediately to…
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