pairs

Build it

pairs is an app: nothing can depend on it. Clone it from the registry and build it with the cairn tool:

git clone https://cairn.registry.nexthub.sh/git/iamnbutler/pairs.git
cd pairs && git checkout v0.1.2 && cairn build --release

Depends on

cairn ^0.2.4
cairn_json ^0.1.0

Versions

Version	Published	Commit	Claims	Docs
0.1.3	Oct 25, 2026	`8eaf4a3aa5`	25 active	docs
0.1.2	Oct 25, 2026	`5a687c4c65`	25 active	docs
0.1.1	Oct 25, 2026	`1cc8529af3`	25 active	docs
0.1.0	Oct 25, 2026	`51e6950fa1`	25 active	docs

What changed in 0.1.2

No claim is new, retired or moved since 0.1.1.

Claims in 0.1.2

Every id this package has issued, as its claims.lock held them at this version. An id never moves or changes meaning: the registry refuses a version that drops, renumbers or redefines one. The claim pages show each claim by place, with what it does and its evidence.

Id	Kind	Status	Claim
`pairs^1`	place	active	Pairs window
`pairs^2`	move	active	Turn a card
`pairs^3`	move	active	New Game
`pairs^4`	move	active	Open a pack
`pairs^5`	move	active	Cancel loading
`pairs^6`	place	active	Pairs menu
`pairs^7`	place	active	Packs submenu
`pairs^8`	move	active	Open the menu
`pairs^9`	move	active	New Game
`pairs^10`	move	active	A bundled pack
`pairs^11`	move	active	A pack in the packs folder
`pairs^12`	move	active	Open Packs Folder
`pairs^20`	invariant	active	The board is a deal of the pack
`pairs^21`	invariant	active	At most two unmatched cards face up
`pairs^22`	invariant	active	Won exactly when every card is matched
`pairs^23`	invariant	active	The game can always be won
`pairs^24`	invariant	active	Moves count pairs turned
`pairs^25`	invariant	active	A matched card stays matched
`pairs^26`	invariant	active	Best scores only improve
`pairs^27`	invariant	active	No request is lost
`pairs^28`	invariant	active	A late reply changes nothing
`pairs^29`	invariant	active	Only a finished pack changes the board
`pairs^30`	flow	active	Find a pair
`pairs^31`	flow	active	A mismatch
`pairs^32`	flow	active	Win a game