Sudoku Patterns
| numbers | 1 | 2 | 3 | 4 |
| math | + | - | × | ÷ |
| arrows | ← | ↑ | → | ↓ |
| copy protection | © | ® | ™ | ℗ |
| shapes |  |
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| suits |  |
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| dice |  |
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| numbers | 1 | 2 | 3 | 4 | 5 | 6 |
| roman numerals | I | II | III | IV | V | VI |
| circles |  |
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| numbers | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| roman numerals | I | II | III | IV | V | VI | VII | VIII | IX |
| math symbols | ∞ | ∏ | ∑ | ∫ | ∀ | ∃ | ∅ | ∩ | ∪ |
| greek letters | α | β | ε | η | θ | λ | μ | π | χ |
| currency | $ | ¢ | £ | ¥ | € | ₣ | ₪ | ₦ | ₭ |
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| numbers | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F |
| arrows | ← | ↑ | → | ↓ | ↖ | ↗ | ↘ | ↙ | ⇐ | ⇑ | ⇒ | ⇓ | ↰ | ↱ | ↲ | ↳ |
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