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### tl, dr
<br>
* predict trade opportunities that will mine into a future block by pushing another users trade opportunity to its max slippage limit, which will result in an arbitrage opportunity at a later time (typically within the same block).
* sandwiching is a common situation that occurs when a searcher identifies a large trade in the mempool that will cause an impact on the price of an asset.
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---
### cross-trading arbitrage like sandwich
<br>
- a sandwich arbitrage has characters as below:
- In the same block, the attacker's transactions contain a start transaction, an end transaction, and one or more victim transactions in between.
- the combination of attacker and victim needs to satisfy an essential condition: the from address is not the same.
- the `CombinedTransferTable` of each transaction contains the same Address processing the Trade. Combining the Attacker's Start Transaction and End Transaction give the CombinedTransferTable of this arbitrage having the final net surplus.
<br>
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### examples in the wild
<br>
* https://etherscan.io/tx/0x90f2f133fcfe8e1870b69323ea0b46193b9443a701b4cef81a14c727a1df648f
* [a MEV bot sandwich attacked this user](https://etherscan.io/tx/0xa79dfb5d4442a4ff04768c638bf306b75340ac325e86c34653904ab7f7429ac5)
* [bot spent $18,583.13, to make $19,182.43](https://etherscan.io/tx/0x206203f5d62b8027fc8ad0c88be2b6d7b8e9c6b5b81a49c9a8d1c227d6027018)
### in this dir
* [interesting txs in the wild](interesting_examples.md)
* [cross-trading arb like sandwich](cross_trading.md)
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