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Butterfly has two wings that widen toward the middle, with a two-tile-wide body running down the center. It's only three layers high, so more tiles are visible from the start than on the taller boards.
The body cuts each row in two. A wing can't be cleared across the middle, so each one works like its own small board with an open outer edge.
144 tiles over 3 layers, 12 tiles wide and 8 rows high. These percentages show how often a bot choosing pairs at random won, across 2,000 games at each level:
A thinking player will do far better than a random one. See how we measured this.
144 tiles · 4 layers
A stepped pyramid, and the main board on this site.
144 tiles · 5 layers
The traditional shape: a domed shell, side wings and one tile on the peak.
136 tiles · 4 layers
Four corner towers, four tiles high, around a walled courtyard.
144 tiles · 4 layers
Two big towers joined by a narrow two-row span.
144 tiles · 3 layers
Four arms meeting at a raised center block.
72 tiles · 3 layers
Half the tiles of a full board. Quick games with larger tiles on phones.
96 tiles · 3 layers
A flat bed with three raised mounds. A shorter game at 96 tiles.
144 tiles · 3 layers
Three broad steps climbing to one side. Few free tiles at the start.
136 tiles · 4 layers
Tapered rows forming a diamond. The most forgiving full-size board.
The rules, from your first pair to clearing the board.
How traps work, and how to avoid getting stuck.
Every tile, what it means and what it matches.
Every board compared by size, shape and difficulty.
Our data from 80,000 simulated games.
One new board a day, the same for everyone.
They're very close in our simulations. Butterfly shows you more tiles at the start, which suits a careful player, since you can see more of what you're choosing between.
Three. That makes it one of the flatter 144-tile boards, with most tiles visible early on.