Online memorization

Speed Numbers Trial 2

840 digits · 5 minute memorization

Grouping

Shape the sheet into the same groups you use while memorizing.

Group sizes describe how wide each group is. Separate alternating sizes with commas; for example, 3,2 repeats groups of three and two.
Choose whether the groups continue sideways or downward.
Each group spans this many adjacent rows.
Boxes enclose every group; dividers mark only the boundaries between groups.

Cursor highlight

Choose how much context follows the active digit.

A complete sequence highlights one full repetition of Group sizes.
Highlight color
The lighter shade shows the rest of a complete group sequence.
Advanced reading order

Use these options only when your natural starting corner is different.

How this layout reads

Seconds before the memorization sheet appears (0–60).

Preview

3 1 4 1 5 9 2 6 5 3 5 8 9 7 9 3 2 3 8 4 6 2 6 4 3 3 8 3 2 7 9 5 0 2 8 8 4 1 9 7
1 6 9 3 9 9 3 7 5 1 0 3 1 4 1 5 9 2 6 5 3 5 8 9 7 9 3 2 3 8 4 6 2 6 4 3 3 8 3 2
7 9 5 0 2 8 8 4 1 9 7 1 6 9 3 9 9 3 7 5 1 0 3 1 4 1 5 9 2 6 5 3 5 8 9 7 9 3 2 3

Click the preview, then use the arrow keys to test the cursor.

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Training 30 Aug 2026 World

Speed Numbers Trial 2, #840Key: ed6ccf97
Memo. time: 5 minRecall time: 15 min
5 7 9 7 3 2 2 1 1 3 1 8 3 9 4 2 9 8 7 4 9 1 9 3 7 8 3 8 8 8 1 8 9 9 5 0 4 4 0 4 Row 1
7 8 5 4 6 0 0 0 7 5 7 9 8 3 4 1 0 1 7 3 7 2 1 3 5 6 5 3 1 1 7 7 6 4 3 9 1 7 1 0 Row 2
3 9 2 9 1 4 3 2 4 1 1 0 1 4 4 6 6 8 3 9 7 8 0 1 9 1 8 3 2 7 0 0 5 1 7 5 4 6 4 1 Row 3
6 8 1 4 3 3 0 3 5 5 8 0 4 8 0 5 9 8 9 9 3 9 8 8 2 2 6 5 4 4 8 6 2 8 5 0 3 3 5 7 Row 4
6 0 8 9 9 5 7 0 4 6 9 6 3 1 2 5 0 9 4 0 9 8 2 8 0 7 0 1 3 0 4 4 3 6 3 3 8 7 1 2 Row 5
1 4 8 3 1 7 1 6 0 4 8 0 9 8 6 6 8 4 7 4 1 9 3 9 4 0 4 0 5 7 2 4 2 0 5 2 9 3 9 7 Row 6
6 1 1 5 2 6 2 5 9 1 2 5 0 8 9 9 6 2 6 5 0 7 6 4 1 0 7 4 6 2 8 6 4 8 4 9 3 9 5 7 Row 7
0 2 9 9 8 1 6 4 4 5 2 7 4 3 6 4 5 2 4 5 2 0 1 7 7 6 7 2 9 8 4 5 4 3 7 3 4 8 5 0 Row 8
0 2 9 4 5 0 3 2 1 1 9 2 6 7 4 7 5 0 6 8 5 7 5 8 8 3 9 5 9 7 9 6 2 0 3 1 9 5 2 6 Row 9
5 9 8 4 3 6 9 1 9 8 5 9 6 3 4 0 5 6 7 1 7 3 4 1 4 1 3 0 8 8 4 7 2 5 1 0 9 0 7 5 Row 10
7 1 5 6 6 6 2 1 8 1 2 1 9 1 7 9 3 8 5 0 0 1 6 5 4 2 8 9 8 7 0 1 0 3 1 9 8 4 4 3 Row 11
1 1 1 9 2 7 0 2 5 6 8 3 5 9 9 7 1 6 6 6 5 4 5 5 9 2 4 2 1 2 3 1 2 4 4 6 9 2 0 0 Row 12
8 9 1 8 4 5 2 9 8 4 4 7 9 5 5 1 9 4 6 1 8 3 2 0 2 6 4 1 5 7 8 1 9 1 2 2 0 1 2 8 Row 13
4 7 2 8 6 9 7 7 3 2 4 8 3 0 1 6 2 3 1 2 9 1 3 9 4 5 1 1 6 3 1 4 7 0 3 1 4 6 1 1 Row 14
3 9 9 4 4 0 5 4 2 1 5 8 7 9 7 4 5 5 7 9 1 2 1 5 5 7 3 8 2 2 1 9 7 8 3 9 1 4 3 8 Row 15
4 9 3 6 7 2 9 9 2 4 7 6 0 4 0 9 3 0 6 0 9 0 5 9 1 6 8 5 0 1 2 3 9 0 4 3 4 3 2 9 Row 16
9 9 9 4 9 3 0 9 5 8 4 0 9 8 6 8 5 6 0 9 2 1 2 5 9 4 1 5 8 8 1 1 8 1 4 4 6 4 0 4 Row 17
5 6 0 1 3 6 4 3 2 1 4 8 7 5 9 1 1 7 9 9 4 0 3 7 8 7 5 2 0 3 9 2 1 6 9 5 8 8 0 8 Row 18
9 8 1 6 0 7 5 6 0 5 0 4 6 8 3 6 9 9 1 8 5 2 5 7 6 9 4 8 2 2 4 5 2 4 4 7 9 4 0 0 Row 19
1 7 3 6 3 9 2 4 2 1 4 1 2 5 4 9 0 6 8 2 6 7 4 3 2 6 3 0 5 8 4 2 5 6 4 8 7 0 3 3 Row 20
8 4 7 6 2 2 2 8 7 7 3 6 6 8 1 0 0 0 3 5 0 2 0 3 8 1 1 0 1 7 1 1 4 7 3 9 0 9 7 6 Row 21
1

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