Proper noun
Initialism of United States Cycling Federation.
Initialism of United States Chess Federation.
Initialism of United States Cricket Federation.
Source: en.wiktionary.orgKenneth Harkness published popular rulebooks in the United States starting in 1956, and the USCF continues to publish rulebooks for use in tournaments it sanctions. Source: Internet
Hence to win on time with this material, the USCF rule requires that a win can be forced from that position, while the FIDE rule merely requires a win to be possible. Source: Internet
If the player has pressed their clock, the standard USCF rule is that two minutes are added to the offender's opponent's clock. Source: Internet
The USCF does not have this exact rule. Source: Internet
USCF Rule 14E defines "insufficient material to win on time", that is lone king, king plus knight, king plus bishop, and king plus two knights opposed by no pawns, and there is no forced win in the final position. Source: Internet