# 400 rules · Arba’meyeh · أربعمية

> Four players form two partnerships, with hearts as the permanent trump suit. Players bid for their own trick targets and must follow suit when able. Meeting or missing a bid changes the player’s score. Read the current in-app rules for supported options, gameplay and scoring details.

## Aim and basic play

Four players form two partnerships, with hearts as the permanent trump suit. Players bid for their own trick targets and must follow suit when able. Meeting or missing a bid changes the player’s score.

## Background and variations

The difference from Tarneeb starts with fixed trump and individual bids. Bid thresholds and score multipliers require the full in-app rules.

## In CedarCards

Open the game collection, choose this mode, then open Rules & Strategy Guide. These are short introductions, not a complete scoring reference. The current build is under local testing; online multiplayer remains planned.

See [CedarCards and the collection](/apps/cedarcards/#explainers) for screenshots, availability and pricing.