AWhat changed
Replaced the lengths and shapes of a bridge layout with its connection pattern and a parity argument, ruling out a walk that crosses each of the seven bridges exactly once.
Scientific scope
The Konigsberg bridge problem's connection-pattern reduction and impossibility argument.
Evidence
Original sources and institutional historical accounts support the stated contribution. The reading boundary is recorded at each source; this assessment is not an independent scientific verification.
Contributors
- Leonhard Euler · SCIENCE: Named source contributor to this scoped work; individual labor shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
Full scientific record · Browse contribution grades · Request a correction