'formula' is a variable that can be set with the 'set' command to screen match challenges you receive from other players. If your formula evalutes to "true" when someone challenges you with the match command, then the challenge will get through to you. If it evaluates as "false", then the challenge is rejected, and you receive notification that it is rejected. 0 is "false" and 1 is "true". You may view your current formula with 'vars' .
If you want your formula to be used to screen people who accept your seek ad, you must type 'set useformula on' before you issue the seek. You only have to type this once. It is saved.
Formulae do not apply to "rematch" challenges, and the pools like 1-minute, 5-minute, etc.
For operators and terms for formulae please read "help formula"
Some frequently asked formula:
Type: set formula lag<1000
In this example only players with a lag under 1000 can challenge you / accept your seek.
Type: set formula rating>1700
In this example only players with a rating above 1700 can challenge you / accept your seek.
Type: set formula established
In this example only established (nolonger provisional) can challenge you / accept your seek.