RATING_SCALE
The ELO rating scale: a gap of this many points makes the stronger player a 10:1 favourite. 400 is ELO's own constant, not a tuning knob — changing it changes what a rating means.
The ELO rating scale: a gap of this many points makes the stronger player a 10:1 favourite. 400 is ELO's own constant, not a tuning knob — changing it changes what a rating means.