An edge must be shared.
Matching symbols across a gap cannot be removed as a working pair.

Remove matching neighbouring dies in the correct order. A careless pair can isolate the final marks.
Open the pairing benchSelect two matching dies that share an edge. Clear all sixteen pieces to complete each workshop tray.
Matching symbols across a gap cannot be removed as a working pair.
Geometric dies and kiln enamel give the board a printmaking character.
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