How does a round of recall work?
A shape appears on the grid while the white REMEMBER bar runs down. When it runs out the shape dissolves. It then reappears somewhere else, at a different size and, on medium and hard, a different angle. Move it back, match its size and angle, and lock it in before the PLACE IT bar empties. The bar turns red in its last 30 percent, and when it runs out your shape locks where it is.
How do I move, resize and rotate the shape?
Drag the shape itself to move it. Drag the white dot on its dotted leash to resize and turn it: the distance from the centre sets the size and the direction sets the angle. On a phone you can also pinch to resize, twist two fingers to rotate and move them together to slide it. With a mouse, the wheel resizes and Shift with the wheel rotates. On a keyboard, the arrows move it (hold Shift for fine steps), plus and minus resize, Q and E rotate, Tab switches shape and Enter or Space locks it in.
How is the score worked out?
Position scores full marks on the exact spot and drops to zero 30 percent of the board away. Size compares your size with the original on a log scale, so too big and too small count the same. Angle drops to zero at 45 degrees off. With rotation, position is half the score, size 30 percent and angle 20 percent. On easy there is no angle, so position is 60 percent and size 40 percent. A round only shows 100 when it is exact.
Does a symmetric shape count as the right angle when it is turned?
Yes. Angle error is measured against the closest matching turn, so a square is right every 90 degrees, a triangle every 120, a hexagon every 60 and a bar or diamond every 180. Lopsided shapes such as the ell, arrow, kite and bolt only match one way round.
What are the pass marks and lives?
Each round needs 60 percent on easy, 70 on medium and 75 on hard. You start with two lives and lose one for every round under the mark. Lose both and the game is over. Your score is the sum of every round. At 95 percent a round is PERFECT, at 85 it is SHARP, and any other pass is GOOD.
What changes between easy, medium and hard?
Easy never rotates, gives three and a half seconds to look and twelve to place. Medium adds rotation, a bar and a kite, with three seconds to look and ten to place. Hard uses lopsided shapes, two and a half seconds to look and nine to place. The look time shrinks by 0.12 seconds every round, down to 2 seconds on easy, 1.4 on medium and 1 on hard.
When do two shapes appear at once?
From round 6 on medium and round 4 on hard you place two shapes from one look. They never overlap, you get 35 percent longer to look and 40 percent longer to place, and the round scores the average of both. Tap a shape, or press Tab, to switch between them.
How does the daily set work?
The daily set is five rounds with the same shapes for everyone that UTC day and difficulty. There are no lives, so every round counts, and it is scored out of 500. Your first attempt each day goes on the daily leaderboard; play it again and it is marked as practice.
Any tips for remembering shapes?
Use the grid. The brighter centre lines split the board into quarters, so note which quarter the centre sits in and how many grid squares it is from the nearest line. Judge size against the grid squares too. For the angle, pick one corner and remember where it points, like a clock hand. Place the position first, because it is worth the most.