Evidence
Each row links back to the complete public-domain source text and the structured extraction record.
| Tradition | Source | Passage | Confidence | Evidence | Record |
|---|---|---|---|---|---|
| Sufi | The Sufistic Quatrains of Omar Khayyam | LVIII. / LXIII. / LXVIII. / LXIX.; lines 3673-3707 | medium | Quatrain LXIX describes helpless pieces moved, checked, slain, and laid back in a closet on a chequer-board of nights and days. | record |