New roulette strategy sim !!
https://gamble-galaxy.com/freetrackers/321dozens.html

The Core Idea
European roulette splits the 36 numbers into three "Dozens": D1 (1-12), D2 (13-24), D3 (25-36) — plus 0, which belongs to none of them.

This tool watches the last 3 spins for a full rotation through all three Dozens, in order: D1 → D2 → D3, D2 → D3 → D1, or D3 → D1 → D2. Some players believe a completed rotation like that is less likely to immediately repeat itself. This simulator lets you test that theory over many spins — it does not change the actual odds of the wheel.

How a Bet Gets Armed
Minimum Sequence Repeats sets how many times in a row the same rotation has to occur before a bet is armed. At 1, a bet arms the moment a single rotation completes. At a higher number, the same rotation pattern has to repeat back-to-back that many times first.

Once armed, the bet is placed on the next spin — never the spin that triggered it. The tool bets on the two Dozens that would not continue the pattern.
Bet Sizing (Progression)
Loss Progression is a comma-separated list of bet sizes (e.g. 1,3,6,8). Step 1 is the starting bet. Every loss moves to the next step; every win resets back to step 1.

Flat Bet ignores the progression and always uses the first number.
Pause After Max Progression: if checked, betting pauses after losing at the final step. Unchecked = loop back to step 1.
Ignore Zero: when checked, zero while a bet is armed carries the bet forward (no loss).

Controls & Panels
SPIN • AUTO • RESET
Current Trigger shows the armed rotation. Current Bets shows which Dozens you're backing. The charts track bankroll and progression usage. Sequence Counts shows how often each rotation has appeared.