##Renju
Renju, also called Five in a Row, is a traditional Chinese board game. The first player to form an continuous chain of five pieces horizontally, vertically, or diagonally wins the game.
## Rules
There are 6 rules to choose from in the app:
### 1. Ancient Rule
The origin rule that was made thousands years ago. The first player who forms five pieces in a row wins.
### 2. Swap
When 3 pieces on the board, the second player can choose to swap to play as white piece or remain as black piece.
* Overline is not restricted, and does not counted.
### 3. Black Forbidden Moves
The second player (black piece) cannot play forbidden moves that includes
- Double Three
- Double Four
- Overline
### 4. Yamaguchi Opening Rule
Developed by Japanese player Yusui Yamaguchi.
The game must follow the sequence of moves on opening:
1. The first player (tentative black) puts one of the 26 openings and declares how many 5th moves will be offered in that game.
2. The next player (tentative white) has a right to swap.
3. The white player puts the 4th move anywhere on the board.
4. The black player puts as many 5th moves on the board as it was declared before (symmetrical moves not allowed).
5. The white player chooses one 5th from these offerings and plays the 6th move.
Then follow the "Black Forbidden Moves" rules.
### 5. Soosõrv Opening Rule
1. **索索夫規則**: (Soosõrv Rule) 2017世界盃開始採用的職業規則。
Developed by Estonian player Ants Soosõrv.
The game must follow the sequence of moves on opening:
1. The first player puts one of the 26 openings.
2. The other player has the right to swap.
3. The white player puts the 4th move anywhere on board and declares whether there will be 1, 2, 3 or 4 fifth moves offered in the game.
4. The other player has a right to swap.
5. The black player puts as many 5th moves on the board as it was declared before. The fifth moves can not be symmetrical.
6. The white player chooses one 5th from these offerings and plays the 6th move.
Then follow the "Black Forbidden Moves" rules.
### 6. Connect 6
Introduced in 2003 by Profession I-Chen Wu.
At opening the first player (black) place one piece on the board. After that, each player place two pieces in their turn. The first player gets 6 pieces in a row wins.