What will happened to the blocks of the miners that will not succeed first on resolving the puzzles and all the transactions inside those blocks?
Those transaction go back to the mempool and wait for another block.
But you have to understand that one transaction can be picked up by different miners at the same time, but only the winner miner obtains the rewards.
I think you are worried about the transactions with low fees… those can wait longer and longer, because no miner pick them when the network is saturated with tx.
Thank you for the help