Proposition for the new game similar to Connect6 and Renju

The game "Connect5"

The rules are the same as in Connect6 with two differences:
1. It is necessary to place FIVE or more pieces in a solid row vertically, horizontally or diagonally.
2. It is prohibited for each players during the same move to put both pieces at the same line (vertical, horizontal or diagonal).

Motivation:
The game is more close to Renju/Gomoku since it is necessary to place FIVE pieces in a row (not 6 as in Connect6).
The three is not a threat to win in one move but it is necessary to close three from at least one side (if there is no own forced play). So, the game is similar to Gomoku/Renju, moreover, as rule, the playing is going at two flanks simultaneously.
There exist wins by means of "fouls", for example, if to place by one move two fours such that the defending points are on the same line. In some sense, it is similar to fouls in Renju.
It is very hard to win in early opening since to defend to more easy than to attack in the case of small number of pieces on the board. Therefore, the knowlenge of the opening theory has not significance. But in the case of big number of pieces on the board the possibilities for attacks are growing strongly because of "fouls" ideas.

The implementation of this game is very easy on the base of Connect6.

For Czech players: If you are interested in this game, please, translate this text for Czech forum.