Make a path from S to F that adds up to

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Attempts:

How to play Totally

Totally is a free daily maths puzzle. Everyone gets the same grid of numbers each day, with a Start square in the top-left corner and a Finish square in the bottom-right. Your job is to draw a path from Start to Finish whose numbers add up exactly to the target. It's mental arithmetic with a bit of route planning.

How the puzzle works

Tap a square next to the end of your path to extend it: up, down, left or right, never diagonally, and never through the same square twice. Tap any earlier square on your path to cut it back to there, or press Clear path to start again; editing is always free. The running total isn't shown while you draw, so the adding up is part of the challenge. When your path reaches Finish, press Submit: if it's wrong you'll see what your path added up to and how far over or under the target it was. Early in the week the grid is 4×4; from Thursday it's 5×5. Every puzzle is checked by walking every possible path from Start to Finish, and exactly one of them hits the target.

Scoring and the helper

You have six attempts. Solving it on your first attempt earns 12 points, then 10, 8, 6, 4 and 2 for attempts two to six. Each miss tells you how far away you were. Stuck early on? The helper shows the first two steps of the right path, but it halves the day's score and is only available during your first three attempts.

Streaks and badges

Your play streak counts the days in a row you've played, and your solved streak counts the days in a row you've solved the puzzle. Play seven days running and you earn a 7-point bonus, or 14 points if you solved all seven. Miss a day and the streaks start again. A new puzzle arrives every day at midnight UTC.

Tips

Start by adding up the straightest routes: down then across, or across then down.

If your total is too low, look for a detour through big numbers; if it's too high, steer round them.

Your earlier tries are listed with their totals, which tells you which direction to adjust.

What Totally trains

Mental arithmetic. Keeping a running total as your path grows.

Route planning. Choosing a path that can still reach the target exactly.

Adjusting. Swapping one square for another to fix the sum.

Did you know?

In a 5 × 5 grid there are 70 different shortest routes from the top-left square to the bottom-right.

Finding the best path through a grid of numbers is a textbook example of a computing technique called dynamic programming.

Your attempts