user50299: I have some problems understanding the flow of consensus mechanism, so far I know, In PoW when validating a transaction the miners will compete with each other to solve a puzzle, the miner who find the nonce first will get the chance to validate.
My problem is, I don't understand the process after this. I want to know what miners will do after solving the puzzle? 
Thank you.

user69241: 
My problem is, I don't understand the process after this. I want to know what miners will do after solving the puzzle? 

After miner A found the nonce, he broadcasts his "solution" to the network (miner B and miner C for example) and starts to build a new block and try to find the new nonce.
Miner B and miner C both validate the "solution". If it's a correct block, they add it to their local blockchain and broadcast it to others (Miner D, E, F...) and right after that, they do also build a new block and try to find the new nonce for that one.

50299: <p>I have some problems understanding the flow of consensus mechanism, so far I know, In PoW when validating a transaction the miners will compete with each other to solve a puzzle, the miner who find the nonce first will get the chance to validate.</p>

<p>My problem is, I don't understand the process after this. I want to know what miners will do after solving the puzzle? </p>

<p>Thank you.</p>
 69241: <blockquote>
  <p>My problem is, I don't understand the process after this. I want to know what miners will do after solving the puzzle? </p>
</blockquote>

<p>After miner A found the nonce, he broadcasts his "solution" to the network (miner B and miner C for example) and starts to build a new block and try to find the new nonce.</p>

<p>Miner B and miner C both validate the "solution". If it's a correct block, they add it to their local blockchain and broadcast it to others (Miner D, E, F...) and right after that, they do also build a new block and try to find the new nonce for that one.</p>
