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Replace rule on positive score #656

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Replace rule on positive score #656

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2 changes: 1 addition & 1 deletion docs/cow-protocol/reference/core/auctions/competition_rules.md
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Expand Up @@ -21,7 +21,7 @@ All solvers participating in the solver competition must abide by certain rules.
- Scores: Every solution is associated with a _score_. The score is computed from executed amounts of all trades and is roughly equivalent to the amount of surplus a solution generates for users. For concrete formulas see [the section on solving](the-problem) or [CIP-38](https://snapshot.box/#/s:cow.eth/proposal/0xfb81daea9be89f4f1c251d53fd9d1481129b97c6f38caaddc42af7f3ce5a52ec) and [CIP-65](https://snapshot.box/#/s:cow.eth/proposal/0xd172281444c48254398881c57a57a2acbf0802a385e6c94384fd358b943aa4f4).

- Valid solutions: A solution is _valid_ if
- it has a positive score; and
- it proposes the execution of at least one order eligible for contributing to score; and
- respects Uniform Directional Clearing Prices (UDCP): all orders trading the same tokens in the same direction must receive the same price (with an exception for orders containing hooks to account for the cost of gas). Importantly, each solution must respect UDCP, but there is no obligation to respect UDCP across solutions, even if submitted by the same solver.

- Winner selection: The set of winning solutions (and corresponding winning solvers) is chosen using a _Fair Combinatorial Auction_ (see [CIP-67](https://snapshot.box/#/s:cow.eth/proposal/0xf9ecb08c4738f04c4525373d6b78085d16635f86adacd1b8ea77b2c176c99d32)) from all valid solutions. Each solution corresponds to a bid in the auction.
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