Calculate precise win-loss probabilities for dice-based wargame combat. Simulate attack versus defense scenarios instantly with our free online probability tool.
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Technical Specification: Combat Dice Probability Engine
Overview
A high-performance, browser-based probability calculator for dice-based wargame combat. It allows users to simulate combat outcomes between an attacker and a defender, providing immediate, mathematically accurate win-loss probabilities.
UI/UX Design
- Layout: A clean, two-column "SaaS-style" interface. The left column controls input (number of dice for Attacker and Defender), and the right column displays real-time results and probability visualizations.
- Aesthetics: Professional light-mode aesthetic.
- Background:
#f8fafc(Cool gray). - Cards:
#ffffffwith soft0 4px 6px -1px rgba(0, 0, 0, 0.1)shadows. - Primary Accent:
#3b82f6(Vibrant blue) for buttons and active states. - Text:
#0f172a(Dark slate) for high readability.
- Background:
- Responsive Design: Stack columns on mobile devices. Use flex/grid for desktop layouts.
Features
- Live Configuration: Interactive selectors (buttons or toggles) to set the number of dice for the attacker (1-3) and defender (1-2).
- Instant Calculation: Calculations trigger automatically upon state change.
- Probability Dashboard: Displays three primary statistics:
- % Chance: Attacker loses 0 armies.
- % Chance: Attacker loses 1 army.
- % Chance: Attacker loses 2 armies.
- Visual Feedback: A clean bar chart or progress bar representation of the odds.
- Scenario Simulator: A "Roll Sim" button that generates a random outcome based on the calculated probabilities to help players visualize the variance.
Technical Implementation Constraints
- Architecture: Single HTML file containing all HTML, CSS (using Tailwind CDN), and Vanilla JavaScript.
- Zero-Persistence: NO
localStorage,sessionStorage, or Cookies. All app state must be kept in volatile JS variables. - Security: Must be iframe-safe (no
alert(),confirm(), orprompt()). Use custom HTML modal components if confirmation is needed. - Performance: Use pure arithmetic for probability calculations (combinatorial logic) rather than a Monte Carlo simulation for absolute accuracy.
- Responsiveness: Use CSS Media Queries (
@media) to adjust padding and layout for mobile/tablet screens.
Interaction Design
- Transitions: Smooth
transition: all 0.2s ease-in-outon all buttons and result bars. - Interactions: Button clicks trigger a subtle "scale-down" animation to provide haptic-like visual feedback.
- Accessibility: Ensure high contrast for text and descriptive labels for screen readers.
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Frequently Asked Questions
Everything you need to know about using this application.
How does the dice probability calculator work?
The calculator utilizes combinatorial mathematics to determine every possible outcome of a given dice engagement. By analyzing the set of dice chosen for the attacker (typically 1 to 3 dice) against the defender (typically 1 to 2 dice), the engine maps every permutation of outcomes. The results are then aggregated to display the precise mathematical probability of the attacker losing zero, one, or two armies compared to the defender. This ensures you have 100% accurate data to guide your strategic decisions during tabletop gameplay.
Is this tool accurate for all board games?
This tool is specifically designed for standard territory control wargames that use a traditional 6-sided dice combat system where attackers roll 1-3 dice and defenders roll 1-2 dice. It calculates outcomes based on the standard rules of comparing the highest dice rolls, where the defender wins ties. If your board game uses a non-standard dice system or unique combat modifiers, the raw probabilities might vary. However, for the most popular dice-based strategy games, this calculator provides the exact mathematical edge needed for optimal play.
Does the tool save my settings or game history?
No, this application is built with a zero-storage architecture to ensure user privacy and compliance with strict security standards. The tool performs all calculations in-memory and does not use cookies, localStorage, or server-side databases. This means that every time you refresh the page, the tool resets to its default state. This privacy-first approach ensures that no data is ever tracked, stored, or shared with third-party servers.
How can I use this to improve my game strategy?
Using this calculator helps you quantify the risk versus reward of attacking a specific territory. By viewing the exact percentage chance of winning or losing units, you can make informed decisions about whether to commit more troops to an offensive or consolidate your current position. Over time, relying on the actual mathematical probabilities rather than gut feeling allows you to mitigate unnecessary losses. It is an essential companion for any player looking to optimize their tactical approach in dice-driven wargames.
