Product
Features
The same cards you will use after sign-in: groups, lineups, matches, and permission bits — not screenshots, and not a second UI.
What you get
The scenes below are illustrative North Table results — the cards are the ones in the app; the numbers are a story.
Groups as home base
Create a group, bring members in, and keep one clear activity pool for invites, matches, and rankings.
Invites and permission bits
Owners, admins, and members share a ladder without sharing the same keys. Fine-grained bits; ownership stays non-delegable.
Record matches of any shape
Log 1v1, 2v2, uneven lineups, and N-way games inside a group — scores become win, lose, or draw.
Team fingerprints and member lanes
TrueSkill projects onto exact lineups and onto per-player lanes keyed by match shape — e.g. your 2v2 rating across changing partners.
Standings that stay honest
Ratings are projected from an append-only match history, so every effective result is reflected on the board.
Corrections without rewriting history
Mistakes become tombstones and corrections, not silent edits. The projector replays the effective record.
In the app
Groups as home base
One group is one activity pool in v1. Invites, matches, and rankings all live here — this is the same group card you see on the app home.
North Table
Membership
Invites and permission bits
Permission bits sit on membership, never on skill. Owner is non-delegable. The badges on these member cards are the same ones you will see in the group.
Owner Alice
alice@north-table.example
Bob
bob@north-table.example
InviteFran
fran@north-table.example
Edit matches
Match history
Record matches of any shape
Any number of competing fingerprints can sit in one result. Scores collapse to win, lose, or draw — no margin math, no placement column. These are the match cards from history.
League night
11 – 7
- Alpha 11
- Solo 7
Alpha took the table. This uneven 2v1 stays in history; symmetric games move the ratings.
Three-way
12 – 9 – 9
- Solo 12
- Beta pair 9
- Night shift 9
Mixed roster sizes are recorded; the projector skips them for μ/σ updates.
Ratings
Team fingerprints and member lanes
Team cards track duo and pair strength from head-to-head games. Member lanes track how good you are in each symmetric shape — 2v2 and 2v2v2 stay separate. Memberships carry permissions only; there is no blended overall member score.
- μ 28.40 · σ 2.10
Alpha
2 players- Alice
- Carol
- μ 24.80 · σ 3.20
Solo
Solo - μ 22.00 · σ 2.80
Night shift
3 players- Fran
- Gus
- Hoa
The board
Standings that stay honest
Team leaderboards sort lineup fingerprints by μ. Member leaderboards sort players within a chosen lane. After a match lands, the projector replays effective history — no hand-edited ranks.
- μ 28.40 · σ 2.10
Alpha
2 players- Alice
- Carol
- μ 26.10 · σ 2.40
Beta pair
2 players- Bob
- Dana
- μ 24.80 · σ 3.20
Solo
Solo - μ 22.00 · σ 2.80
Night shift
3 players- Fran
- Gus
- Hoa
Append-only
Corrections without rewriting history
You never reverse TrueSkill in place. A bad result is tombstoned; a correction is a new fact. The projector skips the tombstone on the next full replay.
11 – 5
- Solo 11
- Alpha 5
Wrong score entered. Tombstoned — the projector skips it on replay.
Over time
How a team card moved
μ over time for one team fingerprint. Member lanes get the same kind of chart per shape — the points here are a story for Alpha.
Open a board tonight
Create an organisation, invite the table, record the first match.