Pixel accuracy exercises.
Pick one exercise for a five-round set. Each gives you an action, something to record, and a question to answer afterwards. These are manual practice tasks using the normal game, not separate modes or selectable target sizes.
Exercise 1: map width direction
- Before drawing, picture where the far horizontal edge should land.
- Draw both dimensions normally, then compare the width outlines during feedback.
- Record the width error with a plus for too wide and a minus for too narrow. An exact width is zero.
- Repeat for five rounds, keeping the notes before advancing each time.
Illustrative notes of +5, −2, +8, +8, and +9px give a signed mean of +5.6px and a mean absolute error of 6.4px. Four overshoots suggest trying a slightly nearer horizontal endpoint. The 6.4px error alone would not justify that direction. Use both numbers, and check again on another set rather than subtracting exactly 5.6px from every target.
Exercise 2: isolate height without losing width
- Play a baseline set and record both average axis errors plus each round's height direction.
- If heights repeatedly undershoot, picture a slightly taller distance in the next set; if they overshoot, picture a shorter one.
- Keep your width approach unchanged and record both axes again.
Suppose the displayed averages change from 6px width / 12px height to 7px width / 8px height. Height error fell by 4px while width rose by 1px. That is an illustrative comparison worth repeating. If width instead rises to 20px, the height-only instruction may be disrupting the whole drawing. Keep the unchanged axis in your notes so this tradeoff stays visible.
Exercise 3: check ratio and scale separately
Classify the target before moving: near-square, wider than tall, or taller than wide. Then picture the side lengths. A shape can have the right ratio and still be too large. Use these illustrative comparisons as a rehearsal; the normal game generates its own targets.
| Target | Mental check | Possible miss |
|---|---|---|
| 120 × 120px | Sides should be equal | 132 × 132 preserves ratio but is oversized |
| 180 × 120px | Width is one and a half heights | 198 × 108 is too wide and too short |
| 100 × 150px | Height is one and a half widths | 100 × 130 gets width right but is too short |
During feedback, record whether the ratio, overall scale, or both appear wrong. Choose the next correction from that label. The mistake comparisons explain why area and total score cannot identify the error on their own.
Exercise 4: rehearse a target before drawing
Read the dimensions, look away from the numbers for about two seconds, and picture the rectangle before drawing. The numbers remain visible in the normal game, so this is a voluntary rehearsal exercise rather than a controlled memory test. If you forget a dimension, read it again and mark that round in your notes.
Compare your axis errors and how often you reread the numbers across a few sets. Keep this exercise separate from an endpoint adjustment; otherwise you will not know which instruction changed the drawing. Do not interpret the results as a measure of general memory ability.
Finish with a question, not just a score
Write one sentence about the chosen exercise: “Width overshot in four rounds,” “Height got closer while width drifted,” or “Ratio was right but both sides were too large.” The game stores your personal best and temporarily restores the latest final summary; it does not keep this practice journal. Use your own notes and the ten-minute routine to decide when to repeat the exercise.