連珠
Black may not make a double three, a double four or an overline. White may.
The Japanese tournament game, codified by the Renju International Federation.
目的
- Be the first to make a line: exactly 5 in a row wins; a longer line does not.
- For white, 5 or more in a row wins.
盤
- A square board of 9, 13, 15, 19 lines; 9×9 by default.
手順
- Players take turns placing one stone on an empty point.
- A full board with no line is a draw.
細則
- Black may not make a double three (三三), a double four (四四), a overline (長連). Those points are marked on the board and cannot be played. A five wins even when the same stone would make a forbidden shape.
- Black always opens.
- Openings on offer: Free, RIF, Sakata, Tarannikov, Pro, Long Pro.
- The threat reading, hints and the chance-of-winning bar apply.
- 15×15. Choose the RIF opening to play the classic restricted start with a colour swap.