Kammala wannan jumla: Keene ya kuma shiga cikin shirya wasannin karshe na gasar zakarun duniya da yawa. Ya shirya na farko da rabi na
Gasar cin kofin duniya ta 1986 tsakanin Kasparov da Karpov a London. Wasan, duk da haka, ya yi asara ga Tarayyar Chess ta Burtaniya (BCF) kuma, saboda dalilan da ba a bayyana ba, ya yi murabus daga mukaminsa a cikin BCF jim kaɗan bayan haka. Ya shirya wasan gasar cin kofin duniya na PCA na 1993 tsakanin Kasparov da Nigel Short a London, wanda ya kasance daya daga cikin masu sharhi na hukuma tare da Grandmasters Jonathan Speelman da Daniel King. Shi ne babban ƙarfin da ke bayan 'Wasanni na Brain', wanda ya shirya wasan Gasar Cin Kofin Duniya a 2000 tsakanin Kasparov da Vladimir Kramnik. Bayan wasan, duk da haka, ya riƙe kofin a maimakon kuɗin da ya yi imanin cewa an bashi shi saboda rushewar Wasannin Brain: Kramnik bai karɓe shi ba har zuwa 2008. Wasannin Brain daga baya sun rushe a cikin rikice-rikice.