sobosuba: Jelly Merge
How top-rail merging works in sobosuba
Publisher's guide · Updated November 4, 2026
Yes—you can merge on the top rail in sobosuba: Jelly Merge. Slide two equal-number jellies together while they are still on the rail. They combine before you launch, giving you a different number to play into the board.
The top rail is part of the puzzle
The rail is more than a waiting area. Along it, you can move a jelly horizontally and bring matching numbers together. This creates a choice before every launch: send the current number down, or combine a pair above first. The correct choice depends on what is already in the playfield, so it helps to look at both areas together.
Use the sliding gesture
Start with a jelly attached to the top rail. Slide it along the rail toward a block with the same number. For a top-rail merge, keep the gesture along the rail; pulling the jelly away and down is the separate gesture used to aim a launch. If the numbers differ, they are not a matching pair. Look at the number labels, not only the colors or the current shapes of the jellies.
Choose the number you need below
Imagine two 4 blocks on the rail. Bringing them together gives you an 8 before launch. If an 8 is exposed in the playfield, that might be useful. If an accessible 4 is your best opening, launching a 4 may be the more direct move. These are planning examples, not guaranteed results: the moving pile and the space around the target still affect your shot.
A larger number also needs a place to land
Combining at the top changes the block you send into the pile. Before committing, look for a sensible destination and check the side switches. A bigger number is not automatically a better move when the board is crowded. A simple habit is to decide where the result could go before making the top-rail merge, then let the pile settle enough to understand the landing.
How this differs from merging in the playfield
Both areas combine equal numbers. On the top rail, you arrange the pair by sliding. In the playfield, your launch and the pile's movement bring matching blocks together. Learning to use the two areas as one puzzle is more useful than treating the top as a dispenser and the bottom as the only place where combinations happen.
Published by Shenzhen Taizhi Wansi Technology Co., Ltd.