Bridge splits the board in two. Two thick towers stand at the ends, joined by a span only two rows deep. At 14 tiles across it's one of the widest boards here, and the towers are where nearly all the tiles live.
The split changes how you plan. A tile you need may be in the other tower, and the two sides don't open each other up, so you have to work both evenly.
144 tiles over 4 layers, 14 tiles wide and 6 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 · 3 layers
Tapered wings either side of a tall, narrow body.
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.
It's the only board split into two separate stacks. Clearing one tower does nothing to open the other, so you have to plan across both.
It's one of the widest boards here, so tiles are small on a phone held upright. Turning your phone sideways helps a lot.