Place stones to make connections. Connecting to three or four other pieces allows you to place another stone. When the board is full, the player with the most stones on the board wins.

• Designer: Mark Steere, 2010
• Flume at BoardGameGeek
• Flume at Mark Steere Games

Flume is a drawless two-player game. The odd sized, square board starts out empty. The green circles are treated as green stones on the board. The two players, Red and Blue, take turns adding stones of their own color to the board, starting with Red. Sometimes a player will add more than one stone on a turn. There will always be a move available. Passing is not allowed.

When the board fills up, whoever has the most stones on the board wins. Draws are not possible.

You can place a stone on any unoccupied point.

When you form 3 or 4 connections (orthogonal adjacencies) with stones of any color, you must add another stone immediately, while it’s still your turn. And so on. Your turn concludes when you add a stone which forms 2 or less connections with neighboring stones.

Color doesn’t matter when placing stones. Red stones, blue stones and the green “stones” surrounding the board are all treated the same. Flume uses the pie rule.

To prevent Player 1 (Red) from mirroring Player 2, on their first turn Player 1 is not allowed to place a stone on the center point.

• Current engine version: 20230716 (2023-07-16). On Abstract Play since 2023-07-17.