Simo Häyhä was a Finnish sniper in WWII who, with 6 11, 4:04pm

@GermanDude That is right. When he was alone none of those kills were "confirmed" kills. Some historians speculate he had over 1000 kills, but official record is 505 as no one could vouch for the rest. That 37 is just for those shots the spotter saw but couldn't say for sure if they were kills.