RoboCup-SSL / ssl-rules

Official RoboCup Small Size League Rule Book
https://robocup-ssl.github.io/ssl-rules/
GNU General Public License v3.0
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Remove Penalty Kicks (both Div) #14

Closed g3force closed 4 years ago

g3force commented 4 years ago

From the rule proposal:

In 2019, there are two ways to receive a penalty kick:

  • Every third card led to a penalty kick
  • If a defender other than the keeper is fully inside the defense area and touches the ball

Penalty kicks have several disadvantages:

  • They are quite unbalanced (and thus not very interesting)
  • They lack innovation
  • They need extra implementation
  • They require additional time during a match
  • They interrupt the game

We propose to get rid of penalty kicks completely:

  • The Multiple Defenders foul will result in a red card. The game will be stopped immediately.
  • The third active yellow card will be turned into a red card instead. A yellow card is active as long as the counter has not run out, so in order to get a red card, the team must collect three yellow cards within 2 minutes.

During the last team meeting, it was suggested to replace the current penalty kick by the one-on-one procedure that is currently only applied in the shoot-out phase. This is not as hard of a punishment as the current penalty kick, but it was found a better punishment than the red card.

This PR replaces the penalty kick procedure by the one-on-one procedure. There are no changes in what causes a penalty kick in this PR.