Train before testing a tougher rock
Use the training options shown in your current game session, then try a rock again. The public game page confirms training exists but does not identify stations, repetitions, or exact gains.
Watch for your next available step
When a rock remains too difficult, continue training or check which upgrades the game currently offers. Avoid assuming one stat alone controls every interaction unless the game itself explains that rule.
Track changes in your own session
If you want to compare progress, note your displayed stats before and after a training period and test the same rock again. This is a practical observation, not a published formula.
No unsupported stat targets
The developer listing does not publish a recommended Strength or Speed target, training rate, or optimal routine. This guide avoids inventing numbers.