|View static image|
|Number of cells||260|
|Discovered by||David Bell|
|Year of discovery||2010|
Sawtooth 260 is a diagonal sawtooth that was discovered by David Bell on March 19, 2010. It was the smallest known sawtooth in terms of its minimum repeating population of 260 up until January 26th, 2015.
On January 26th, 2015, Chris Cain discovered a way to use a blocker and a snake in places of the two figure eights, reducing the minimum population by to 252. 4 days later, Dave Greene moved the blocker so that the snake could be removed, reducing the population to 246. These variants have since been surpassed by other sawtooths such as Sawtooth 177, the current record holder as of January 2019.
The original form of this sawtooth was discovered on July 7, 2005. It used the slightly larger 3-engine Cordership at its top-left and had a minimum repeating population of 269. On July 9, 2005 David Bell found a related sawtooth with a minimum repeating population of 262 which used the 136-cell version of the 4-engine Cordership and a period-8 reflector instead of two figure eights.
The number of alive cells plotted versus the number of elapsed generations roughly forms an ever-increasing sawtooth graph.
- New Sawtooth Patterns at Game of Life News