二枚の帰り道 (Two Cards, One Way Home) is a one-puzzle co-operative deduction game from Japan's tiny-deduction-lab, playable free in the browser.
The setup: you're heading home from a harbor exhibition, and the reservation conditions are split across two clue cards. Between the two of you, combine the conditions and find the one correct route home out of four candidates.
With two players, decide who is A and who is B, read your own card, and describe your conditions to each other — the classic pencil-and-paper co-op puzzle format, no moderator or network needed. Solo players can read both cards in turn. The full package — cards, optional hints, the reasoning behind the answer, and a short epilogue story — is free on the page, and wrong answers don't spoil the solution. The text is in Japanese; an English summary of the concept is provided.
How to Play
Player A reads their clue card, player B theirs, and each describes their conditions out loud (close the card before passing a device). Together, eliminate the four candidate routes home until only one fits both cards. Wrong answers don't reveal the solution automatically — hints and the full reasoning are available when you want them.
Controls
Mouse / Touch – read cards, toggle hints and submit your answer
No account, purchase or network play required
Tips & Tricks
State your card's conditions precisely — vague summaries break co-op deduction puzzles.
Eliminate routes that violate a single hard condition before weighing preferences.
Solo mode works fine: read A, then B, then reason with both in mind.
The story epilogue unlocks after the correct answer — worth finishing.
Features
Complete one-shot co-op deduction puzzle
Two separated clue cards, four candidate routes home
Solo mode supported, no moderator or network needed
Free including hints, full solution reasoning and epilogue story
Japanese text with an English concept summary
Original fiction and code (AI-assisted) by tiny-deduction-lab
Latest Updates
Added to PlayBloo
A free Japanese co-op deduction puzzle: two clue cards, one way home. Discovered on itch.io's new releases feed and added to the PlayBloo catalogue with verified source details.