Hecho matemático: 1804 is the number of 3×3 sliding puzzle positions that require exactly 14 moves to solve starting with the hole on a side.
Trivia: 1804 is an uninteresting number.
Fecha histórica: December 8th is the day in 1988 that a United States Air Force A-10 Thunderbolt II crashes into an apartment complex in Remscheid, Germany, killing 5 people and injuring 50 others.