Kammala jumla mai zuwa: Edgar Walther (24 ga Disamba 1930 <unk> 23 ga Oktoba 2013), ya kasance masanin FIDE na Switzerland (FM), Masanin Chess na Kasuwanci na Duniya (ICM, 1978), da kuma lambar yabo ta Chess Olympiad (
1954) ya ba da shawara.