The Nitrate Bench — Daily puzzle for 2026-09-13

Very Hard — logic-grid deduction puzzle

The inspection cards signed by Ignatius, Isadora, Jasper, Josephine, Julius, and Imogen were shuffled before filing.

Read the clues, rule out what cannot be, and prove what must be. Every GRIDIGMA puzzle is verified by a solver that shows the reasoning behind each step, so a solution is never a guess.

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