language

The text of the app.

count assist

Turns the assist on or off.

zen mode

Hide the timers. Your time is still kept, just not shown.

sound

Small sounds as you play.

proTabi Pro

Find the one route from the entrance to the treasure 宝. It steps up, down, left and right, never crosses a wall or itself, never enters a void, and never visits a square twice.entrancewallvoidtreasure
A number beside a row or column says how many of its squares the route covers. The entrance and the 宝 also count as squares of that row or column. No number means no constraint. A clue with ≥ or ≤ is a bound rather than a count: ≥2 says the route covers at least two squares of that row or column, ≤2 at most two.rowcolumnat leastat most
An arrow is a square the route must pass through, leaving in the direction it points. A four-way marker only says the route comes through — any way in, any way out. It is drawn with only the ways that are open, so one in a corner has two arms.arrowfour-waycorner
More than one 宝 means only one is real. The rest are decoys: exactly one sits at the end of a route that satisfies every other clue.特 specialimpostor

Draw one line for each train, in its colour, from its start to its finish. A line steps from square to neighbouring square, may leave its start any way, and never turns round inside a square. Squares no line uses are fine.startfinisha line
Lines may cross, but only on straights: two lines share a square only when both run straight through it at right angles. Otherwise track never overlaps, and no line runs into a void or a station.crossingvoid
A station counts the eight squares around it, diagonals included, in which its own train has track — its start and finish count too, and each square counts once. Its number is that count. A station with ? only has to be passed at least once.station? station
A piece of track printed on the board has to be laid by one of the lines, whichever train it is. A straight piece may still be crossed at right angles.piece

Draw by dragging across squares in {i:line} mode. Drag back along a segment to rub it out, or switch to {i:erase}. You do not have to start at the entrance — work back from the treasure if that is easier.
Mark squares {i:green} or {i:red} as notes to yourself. Nothing is checked against them, and drawing a line through one clears it. On a mouse, dragging with {i:rmb} erases, and backspace is {i:undo}.
Zoom with {i:zin} {i:zout}, a two-finger pinch, or ctrl and the wheel. {i:fit} re-centres the board on the screen.
Move the board by dragging with two fingers, the middle mouse button, or from the margin around the board.
Your work and your time are kept per puzzle, so you can leave and come back to exactly where you were.

Zoom with {i:zin} {i:zout}, a two-finger pinch, or ctrl and the wheel. {i:fit} re-centres the board on the screen.
Move the board by dragging with two fingers, the middle mouse button, or from the margin around the board.
Your work and your time are kept per puzzle, so you can leave and come back to exactly where you were.

Zoom with {i:zin} {i:zout}, a two-finger pinch, or ctrl and the wheel. {i:fit} re-centres the board on the screen.
Move the board by dragging with two fingers, the middle mouse button, or from the margin around the board.
Your work and your time are kept per puzzle, so you can leave and come back to exactly where you were.

旅宝汽灯tabi

Stuck while solving?