If (hypothetically) you found the private key for puzzle 66, and simply tried to spend puzzle 66's BTC balance to another wallet that you control, you better hope that that transaction gets mined into the next block
within a few seconds, or it will be stolen with 100% certainty. This is also the case for the next few puzzles, 67,68,69...
Hey,
hypothetically i find the key, submit tx transaction with 0.1BTC going to my address and pay fee of 6.5 BTC. How do you steal my transaction ?
Thank you!