
- BGG rank
- BGG #910
- BGG rating
- 7.1
Dragon Castle
- 1–4 players
- 30–45 min
- Complexity 2.0/5
- 2017

Rules assistance for Renju
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
For 2 players

What would you like to know?
Answers come from the official rulebook, with the page to check.
Renju is a board game for 2 players, 10 minutes per game, and ages 8 and up. Its main mechanics are Pattern Building and Pattern Recognition.
Renju is the adult/tournament version of the Japanese game Go-Moku. Renju is played on a 15x15 Go board, with Go pieces. The goal is the same: to get five stones in a row. Renju has evolved rules to balance the game however: Go-Moku heavily favors the first player. Renju counters this with two important rules: Setup: one player places two black stones and one white stone on the board. The other player chooses which side to play. White places one stone, then Black places two more stones. White removes one of these last two Black stones, then the game proceeds normally. Restrictions: Black may not create a three-three or four-four. (That is, a move that creates two open-ended threes at once, or two fours at once.) Black may not create an "overline" - six or more stones in a row. White is NOT thus restricted, and can win by any of those moves, OR by forcing Black to make such a move to block White. Renju lacks the depth of Go, but the strategies are far easier to understand, and mere mortals can become quite good at it. Similar to: 5ive Straight Take 5 5 in a Row Go-Moku Pente
Renju supports 2 players according to the catalogue. This is the publisher’s listed player count, so the game is designed for exactly that number of participants. Variants for other group sizes, if any, are described in the rulebook of your edition, so check it before setting up a different configuration.
The listed playing time for Renju is 10 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Renju for ages 8 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Renju has a complexity rating of 2.5 out of 5 from BoardGameGeek players, which makes it a medium-light game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Renju belongs to these categories: Abstract Strategy. Its main mechanics are Pattern Building and Pattern Recognition. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The catalogue lists Renju as a base game. It can be played on its own with the components in the box and does not require any other title. Expansions, if any exist, add new content or rules on top of it and are listed separately in the catalogue with a link back to this base game.