# Board Probabilities

When working on **Great Works**, the probability of success becomes a central element in decision-making. Attempting higher levels offers greater rewards but comes with reduced probabilities, necessitating careful planning and strategic use of your [Famous Buildings](https://city-whitepaper.gitbook.io/reality-rush/advanced-gameplay/famous-buildings). **Great Work success probabilities** are influenced by the **Board Grade**, determined by the majority grade of Famous Buildings placed on the board.

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#### Strategic Considerations

To maximize your rewards, players must consider:

1. **The Great Work Level:** Higher levels yield higher rewards but come with lower success probabilities.
2. **Board Composition:** Use higher-grade Famous Buildings to increase your probability while keeping costs manageable.
3. **Number of Buildings:** Fewer buildings of higher quality may be more efficient than filling the board with lower-grade ones due to cost considerations.

**Warning:** Poor board design can lead to situations where the cost of participation exceeds the expected reward, potentially resulting in **$RRUSH token losses**.

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#### Success Probabilities by Great Work Level and Board Grade

| **Great Work Level** | **Base** | **Uncommon** | **Rare** | **Epic** | **Legendary** | **Artifact** | **Titan** |
| -------------------- | -------- | ------------ | -------- | -------- | ------------- | ------------ | --------- |
| 1                    | 70%      | 73%          | 76%      | 79%      | 82%           | 85%          | 88%       |
| 2                    | 69%      | 72%          | 75%      | 78%      | 81%           | 84%          | 87%       |
| 3                    | 68%      | 71%          | 74%      | 77%      | 80%           | 83%          | 86%       |
| 4                    | 67%      | 70%          | 73%      | 76%      | 79%           | 82%          | 85%       |
| 5                    | 66%      | 69%          | 72%      | 75%      | 78%           | 81%          | 84%       |
| 6                    | 65%      | 68%          | 71%      | 74%      | 77%           | 80%          | 83%       |
| 7                    | 64%      | 67%          | 70%      | 73%      | 76%           | 79%          | 82%       |
| 8                    | 63%      | 66%          | 69%      | 72%      | 75%           | 78%          | 81%       |
| 9                    | 62%      | 65%          | 68%      | 71%      | 74%           | 77%          | 80%       |
| 10                   | 61%      | 64%          | 67%      | 70%      | 73%           | 76%          | 79%       |
| 11                   | 55%      | 58%          | 61%      | 64%      | 67%           | 70%          | 73%       |
| 12                   | 54%      | 57%          | 60%      | 63%      | 66%           | 69%          | 72%       |
| 13                   | 53%      | 56%          | 59%      | 62%      | 65%           | 68%          | 71%       |
| 14                   | 52%      | 55%          | 58%      | 61%      | 64%           | 67%          | 70%       |
| 15                   | 51%      | 54%          | 57%      | 60%      | 63%           | 66%          | 69%       |
| 16                   | 50%      | 53%          | 56%      | 59%      | 62%           | 65%          | 68%       |
| 17                   | 49%      | 52%          | 55%      | 58%      | 61%           | 64%          | 67%       |
| 18                   | 48%      | 51%          | 54%      | 57%      | 60%           | 63%          | 66%       |
| 19                   | 47%      | 50%          | 53%      | 56%      | 59%           | 62%          | 65%       |
| 20                   | 41%      | 44%          | 47%      | 50%      | 53%           | 56%          | 59%       |
| 21                   | 40%      | 43%          | 46%      | 49%      | 52%           | 55%          | 58%       |
| 22                   | 39%      | 42%          | 45%      | 48%      | 51%           | 54%          | 57%       |
| 23                   | 38%      | 41%          | 44%      | 47%      | 50%           | 53%          | 56%       |
| 24                   | 37%      | 40%          | 43%      | 46%      | 49%           | 52%          | 55%       |
| 25                   | 31%      | 34%          | 37%      | 41%      | 43%           | 46%          | 49%       |
| 26                   | 30%      | 33%          | 36%      | 40%      | 42%           | 45%          | 48%       |
| 27                   | 29%      | 32%          | 35%      | 39%      | 41%           | 44%          | 47%       |
| 28                   | 28%      | 31%          | 34%      | 38%      | 40%           | 43%          | 46%       |
| 29                   | 22%      | 25%          | 28%      | 32%      | 34%           | 37%          | 40%       |
| 30                   | 21%      | 24%          | 27%      | 31%      | 33%           | 36%          | 39%       |
| 31                   | 20%      | 23%          | 26%      | 30%      | 32%           | 35%          | 38%       |
| 32                   | 20%      | 23%          | 25%      | 29%      | 31%           | 34%          | 37%       |
| 33                   | 20%      | 23%          | 25%      | 28%      | 30%           | 33%          | 36%       |
| 34                   | 20%      | 23%          | 25%      | 27%      | 29%           | 32%          | 35%       |
| 35                   | 20%      | 23%          | 25%      | 27%      | 29%           | 31%          | 35%       |
| 36                   | 20%      | 23%          | 25%      | 27%      | 29%           | 31%          | 35%       |
| 37                   | 20%      | 23%          | 25%      | 27%      | 29%           | 31%          | 35%       |
| 38                   | 20%      | 23%          | 25%      | 27%      | 29%           | 31%          | 35%       |
| 39                   | 20%      | 23%          | 25%      | 27%      | 29%           | 31%          | 35%       |
| 40                   | 20%      | 23%          | 25%      | 27%      | 29%           | 31%          | 35%       |

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#### Key Takeaways

* **Maximum probability:** 88% (Titan Grade on Level 1 Great Work)
* **Optimal planning:** Balancing risk vs. reward is essential to achieving success.
* **Grade impact:** Higher-grade boards significantly improve your chances, but carefully consider costs and expected rewards to avoid losses.