The game tests the ability to pack four indivisible items into bins of fixed capacity. The optimal packing solution is calculated automatically; the player does not choose the solution. Rewards are determined by captured stakes and mode-specific probabilities, with an expected gross return of 96% per mode.
Core Mechanics and Inputs
The game uses four independently uniform custom wheels. Each wheel produces a reading from 0 to 7. These readings serve as the labelled inputs for the item sizes.
- Item Size Calculation: The size of each of the four indivisible items is the wheel reading plus 1. This means item sizes range from 1 to 8.
- Packing Goal: The objective is to pack all four items into the minimum number of bins, where each bin has a fixed capacity of 8.
- Optimization: The optimum packing configuration is calculated automatically by the system. The player does not select or influence the optimization algorithm.
Stakes, Modes, and Controls
Players capture a single whole stake per complete draw. There is no automatic play, no stop button, and no cash-out feature during a round.
- Stake Values: The available stake options are 10, 20, 50, and 100 virtual coins.
- Reward Powers: There are three reward powers (1, 2, and 3). Each power uses its own exact probability distribution derived from a 4096-draw mean.
- Controls: During active play, stake, mode, and refill controls are locked. Sound remains available.
Payouts and Expected Return
The expected return is expressed as a gross percentage, meaning it includes the stake. The mathematical evidence for each mode is precise.
| Mode | Expected Gross Return | Measured Return (Sample) |
|---|---|---|
| 1 | 96.00000000000509% | 96.023525% |
| 2 | 95.99999999999979% | 95.97014% |
| 3 | 96.00000000000489% | 95.942805% |
Simulation measurements are supporting sample observations and not the mathematical payout law. The expected RTP is not a promised session result.
Wallet and Persistence
The demo uses a local virtual wallet with specific restoration and persistence rules.
- Initial Balance: The demo starts with a balance of 1000 virtual coins.
- Manual Restoration: If the balance falls below 10 and the user is idle, they can manually restore the balance. This action SETS the balance to exactly 1000. It preserves fractional change if applicable.
- Fractional Carry: Fractional values persist through settlement, manual refill, and reload.
- Unfinished Rounds: If the page is reloaded during an active round, the round ends without refund or resume. The balance never refills automatically; while idle with fewer than 10 coins, you can manually restore it to 1000.
Privacy and Data Storage
This demo operates without an account login or payment flow.
- Storage: The game source uses localStorage for settled balance and fractional carry. This does not establish anonymity or exclude other processing.
- Third Parties: The template declares a Google Fonts stylesheet, though full-site network capture remains pending.
- Anonymity: The absence of account controls does not prove that no personal data are processed. Do not assume anonymity based on the demo interface alone.
Audience and Responsibility
18+ Audience: This guide targets an 18+ audience. This is a policy choice, not a universal legal age or an implemented age gate.
Responsible Use: The demo is a virtual-coin simulation. It does not clinically train behaviour or make losses safe. Virtual coins do not have cash value. Users are encouraged to find appropriate local qualified help if needed.
Frequently asked questions
What is the expected return for Eight Unit Bins?
The expected gross return is 96% for all modes. Mode 1 has an exact expected value of 96.00000000000509%, Mode 2 is 95.99999999999979%, and Mode 3 is 96.00000000000489%. Measured values in samples may vary slightly.
How does the item packing work?
Four wheels provide readings from 0-7. Item sizes are the reading + 1 (so 1-8). The system automatically calculates the minimum number of bins of capacity 8 needed to pack all four items. The player does not choose the solution.
What happens if I reload the page during a game?
An unfinished round ends without refund or resume. The balance persists if settled, but any active stake in an unfinished round is not refunded. You must wait for idle status below 10 coins to manually restore the balance to 1000.
