= UCI_LimitStrength, type check, should be false by default,
The engine is able to limit its strength to a specific Elo number,
This should always be implemented together with "UCI_Elo".
= UCI_Elo, type spin
The engine can limit its strength in Elo within this interval.
If UCI_LimitStrength is set to false, this value should be ignored.
If UCI_LimitStrength is set to true, the engine should play with this specific strength.
This should always be implemented together with "UCI_LimitStrength".
According to the UCI protocol, from here: http://wbec-ridderkerk.nl/html/UCIProtocol.html, UCI_Elo should be implemented together with UCI_LimitStrenght
Quote from the UCI protocol: