Pokémon Gen 6 Catch Rate Calculator
Success Probability: 0%
Understanding the Pokémon Gen 6 Catch Formula
Catching Pokémon in Generation 6 (X, Y, Omega Ruby, and Alpha Sapphire) involves a sophisticated mathematical formula that factors in current HP, status ailments, and the specifically tuned "O-Powers." Unlike earlier generations, the math was slightly refined to account for the Capture Power buffs available via the PSS (Player Search System).
The Fundamental Calculation
The game first calculates a value called 'a'. This value determines the raw difficulty of the catch:
If 'a' is 255 or higher, the Pokémon is guaranteed to be caught. If not, the game proceeds to a "Shake Check."
The Shake Check Mechanism
To determine if the ball shakes and eventually clicks, the game generates a second value 'b':
The game then generates four random numbers between 0 and 65535. If all four numbers are less than 'b', the Pokémon is caught. This is why you often see the ball shake once, twice, or three times before the Pokémon breaks free.
Key Factors for Success
- HP Management: Lowering the target to 1 HP (using False Swipe) roughly triples your catch odds compared to full health.
- Status Effects: Sleep and Freeze are the most potent, providing a 2.5x multiplier. Paralysis is a reliable 1.5x alternative that doesn't wear off.
- O-Powers: Using Catching Power Level 3 provides a 1.3x boost that stacks with other multipliers, which is crucial for low-rate Legendaries.
Catch Rate Examples
| Scenario | Probability |
|---|---|
| Mewtwo (HP 1, Sleep, Ultra Ball, No O-Power) | ~10.5% |
| Pikachu (Full HP, No Status, Poké Ball) | ~24.8% |
| Xerneas/Yveltal (HP 1, Sleep, Ultra Ball) | ~70%+ (High Base Rate of 45) |