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A card-game app (web + mobile, AI + online) for Tarneeb, Trix, and Trix Complex.
Built as a TypeScript monorepo around a pure, framework-agnostic rules engine.
Design sources live alongside this code: Tarneeb game rules.docx, Trix Game Rules.docx,
Tarneeb situations.docx, Trix use cases.docx, Trix complex use cases.docx, the
Images/ mockups, and Tarneeb_Trix_Rules_and_Strategy.pdf (the consolidated rules +
bot-strategy contract). The rules doc is the authoritative build contract.
A card-game app (web + mobile, AI + online) for Tarneeb, Trix, and Trix Complex.
Built as a TypeScript monorepo around a pure, framework-agnostic rules engine.
Design sources live alongside this code: Tarneeb game rules.docx, Trix Game Rules.docx,
Tarneeb situations.docx, Trix use cases.docx, Trix complex use cases.docx, the
Images/ mockups, and Tarneeb_Trix_Rules_and_Strategy.pdf (the consolidated rules +
bot-strategy contract). The rules doc is the authoritative build contract.
Architecture
packages/
engine/ Pure TypeScript, zero dependencies. Cards, deal, and the full
Tarneeb state machine (bidding → trump → 13 tricks → scoring).
One source of truth for the rules; reused by UI, AI, and server.
ai/ Rule-based bots implementing the B1 / T1–T11 / D1–D2 playbook:
card counting, void inference, trump drawing, partnership signals.
knowledge.ts = public-info inference; play.ts = tactics; bot.ts = bidding + entry.
apps/
web/ (next) React + TypeScript (Vite). Responsive table UI, PWA-installable
so it also runs in mobile browsers.
server/ (later) Node + WebSockets for online multiplayer.
mobile/ (later) Expo / React Native, reusing engine + shared React code.
Roadmap
Tarneeb vs AI (single-player), end-to-end ← playable
AI: full playbook — B1 bidding + T1–T11 / D1–D2 play on a card-counting /
void-inference / outstanding-card layer (packages/ai: knowledge.ts + play.ts).
Wins 100% vs random over 200 games; unit-tested per tactic.
Online multiplayer (server + matchmaking + "play with friends")
Working repo (source of truth): C:\Projects\tarneeb-trix — outside Google
Drive, because npm install/builds generate tens of thousands of files in
node_modules that Drive's sync client locks (causing EBADF/ENOTEMPTY).
Drive mirror: G:\My Drive\Projects\Card Game app\tarneeb-trix — a
code-only copy for backup/access, kept in sync by scripts/sync-to-drive.ps1
(it excludes node_modules, dist, coverage, .git). Design docs + Images/
stay in the Card Game app root. Always edit in the C:\ repo, then sync.
# After making changes, mirror the repo to Drive:
powershell -File C:\Projects\tarneeb-trix\scripts\sync-to-drive.ps1
Prerequisites
Node.js is installed at C:\Program Files\nodejs (v24). If node/npm
aren't found in a shell, that shell just hasn't picked up PATH — prepend it:
$env:Path = "C:\Program Files\nodejs;" + $env:Path.
Getting started
npm install # install workspace dev deps (from C:\Projects\tarneeb-trix)
npm run dev -w @tarneeb/web # play Tarneeb vs 3 bots at http://localhost:5173
npm test # run the engine's test suite (Vitest) — 18 tests
npm run typecheck # type-check all workspaces
npm run build # production build of the web app
You play the bottom seat; the other three are bots. Bid or pass, name trump if
you win the bid, then click a highlighted card to play. Toggle Arabic/English
from the top bar.
Engine quick tour
import { createGame, applyAction, getLegalActions } from '@tarneeb/engine';
let state = createGame({ seed: 42 }); // deals hand 0, phase 'bidding'
const actions = getLegalActions(state); // legal actions for the seat on turn
state = applyAction(state, actions[0]); // pure reducer: (state, action) -> state
applyAction is a pure function and throws on illegal moves (the engine is
authoritative). UI and bots both drive the game only through getLegalActions +
applyAction, so the rules can never be bypassed.
Notes / rule assumptions
Play and the deal rotate counter-clockwise (to the right); nextSeat(s) = (s+1)%4.
Partners face each other: team 0 = seats 0 & 2, team 1 = seats 1 & 3.
All-pass in bidding → throw-in / redeal, with the deal moving one seat right.
(The rules doc doesn't specify the all-pass case; this is the chosen convention —
flag if you'd prefer a forced minimum bid on the dealer instead.)
