Monthly top-five lists       
Monthly List: April 1966 rating list   
   Player Name  Rating    Age 
 #1  Boris Spassky  2767    29y3m   (#11 all-time among players aged 29y3m) 
 #2  Mikhail Tal  2761    29y5m   (#10 all-time among players aged 29y5m) 
 #3  Leonid Stein  2753    31y5m   (#17 all-time among players aged 31y5m) 
 #4  Viktor Korchnoi  2753    35y1m   (#13 all-time among players aged 35y1m) 
 #5  Bobby Fischer  2751    23y1m   (#15 all-time among players aged 23y1m) 
 #6  Lev Polugaevsky  2744    31y5m   (#24 all-time among players aged 31y5m) 
 #7  Vassily Smyslov  2738    45y1m   (#10 all-time among players aged 45y1m) 
 #8  Tigran Petrosian  2736    36y10m   (#26 all-time among players aged 36y10m) 
 #9  Efim Geller  2731    41y1m   (#22 all-time among players aged 41y1m) 
 #10  Mikhail Botvinnik  2722    54y8m   (#5 all-time among players aged 54y8m) 
 #11  Miguel Najdorf  2717    56y0m   (#6 all-time among players aged 56y0m) 
 #12  Paul Keres  2716    50y3m   (#14 all-time among players aged 50y3m) 
 #13  Mark Taimanov  2705    40y2m   (#38 all-time among players aged 40y2m) 
 #14  Lajos Portisch  2702    29y0m   (#54 all-time among players aged 29y0m) 
 #15  Borislav Ivkov  2701    32y5m   (#62 all-time among players aged 32y5m) 
 #16  Bent Larsen  2699    31y1m   (#62 all-time among players aged 31y1m) 
 #17  David Bronstein  2694    42y2m   (#37 all-time among players aged 42y2m) 
 #18  Wolfgang Uhlmann  2678    31y1m   (#96 all-time among players aged 31y1m) 
 #19  Svetozar Gligoric  2669    43y2m   (#50 all-time among players aged 43y2m) 
 #20  Isaak Boleslavsky  2668    46y10m   (#38 all-time among players aged 46y10m) 
 #21  Alexey Suetin  2667    39y5m   (#60 all-time among players aged 39y5m) 
 #22  Leonid Shamkovich  2667    42y10m   (#53 all-time among players aged 42y10m) 
 #23  Ratmir Kholmov  2666    40y11m   (#64 all-time among players aged 40y11m) 
 #24  Samuel Reshevsky  2664    54y5m   (#18 all-time among players aged 54y5m) 
 #25  Anatoly Lutikov  2654    33y2m   (#123 all-time among players aged 33y2m) 
 #26  Yury Averbakh  2649    44y2m   (#60 all-time among players aged 44y2m) 
 #27  Wolfgang Unzicker  2649    40y10m   (#85 all-time among players aged 40y10m) 
 #28  Ludek Pachmann  2647    41y11m   (#89 all-time among players aged 41y11m) 
 #29  László Szabó  2645    49y1m   (#39 all-time among players aged 49y1m) 
 #30  Nikolay Krogius  2645    35y9m   (#131 all-time among players aged 35y9m) 
 #31  Iivo Nei  2639    34y6m   (#154 all-time among players aged 34y6m) 
 #32  Anatoly Lein  2639    35y1m   (#151 all-time among players aged 35y1m) 
 #33  Raúl Sanguinetti  2635    33y2m   (#157 all-time among players aged 33y2m) 
 #34  Vlastimil Hort  2635    22y3m   (#93 all-time among players aged 22y3m) 
 #35  Bruno Parma  2634    24y4m   (#133 all-time among players aged 24y4m) 
 #36  Roman Dzindzichashvili  2633    21y11m   (#90 all-time among players aged 21y11m) 
 #37  Milan Matulovic  2629    30y10m   (#189 all-time among players aged 30y10m) 
 #38  Pal Benko  2628    37y9m   (#139 all-time among players aged 37y9m) 
 #39  Julio Bolbochán  2627    46y1m   (#67 all-time among players aged 46y1m) 
 #40  Oscar Panno  2625    31y1m   (#210 all-time among players aged 31y1m) 
 #41  Evgeny Vasiukov  2625    33y1m   (#197 all-time among players aged 33y1m) 
 #42  Florin Gheorghiu  2621    22y0m   (#112 all-time among players aged 22y0m) 
 #43  Dragoljub Ciric  2619    30y5m   (#228 all-time among players aged 30y5m) 
 #44  Vladimir Simagin  2619    46y10m   (#76 all-time among players aged 46y10m) 
 #45  Helmut Pfleger  2619    22y8m   (#137 all-time among players aged 22y8m) 
 #46  Bukhuti Gurgenidze  2618    32y5m   (#229 all-time among players aged 32y5m) 
 #47  Aivars Gipslis  2617    29y2m   (#243 all-time among players aged 29y2m) 
 #48  Robert Byrne  2616    38y0m   (#166 all-time among players aged 38y0m) 
 #49  Vladimir Liberzon  2616    29y1m   (#244 all-time among players aged 29y1m) 
 #50  Vladimir Antoshin  2615    36y11m   (#184 all-time among players aged 36y11m) 
 #51  Wolfgang Pietzsch  2611    35y4m   (#220 all-time among players aged 35y4m) 
 #52  Johannes Donner  2611    38y9m   (#168 all-time among players aged 38y9m) 
 #53  Klaus Darga  2609    32y2m   (#271 all-time among players aged 32y2m) 
 #54  István Bilek  2606    33y8m   (#248 all-time among players aged 33y8m) 
 #55  Lothar Schmid  2603    37y11m   (#206 all-time among players aged 37y11m) 
 #56  Levente Lengyel  2602    32y10m   (#286 all-time among players aged 32y10m) 
 #57  Eduard Gufeld  2602    30y1m   (#305 all-time among players aged 30y1m) 
 #58  Aleksandar Matanovic  2600    35y11m   (#245 all-time among players aged 35y11m) 
 #59  Larry Evans  2599    34y1m   (#268 all-time among players aged 34y1m) 
 #60  Alexander Zaitsev  2598    30y10m   (#317 all-time among players aged 30y10m) 
 #61  Semen Furman  2598    45y4m   (#126 all-time among players aged 45y4m) 
 #62  Rashid Nezhmetdinov  2597    53y4m   (#51 all-time among players aged 53y4m) 
 #63  Salo Flohr  2596    57y5m   (#25 all-time among players aged 57y5m) 
 #64  Vladimir Bagirov  2596    29y8m   (#326 all-time among players aged 29y8m) 
 #65  Boris Vladimirov  2595    36y11m   (#245 all-time among players aged 36y11m) 
 #66  Yury Sakharov  2593    43y7m   (#154 all-time among players aged 43y7m) 
 #67  Miroslav Filip  2590    37y6m   (#258 all-time among players aged 37y6m) 
 #68  Andor Lilienthal  2589    54y11m   (#44 all-time among players aged 54y11m) 
 #69  Igor Platonov  2589    32y3m   (#341 all-time among players aged 32y3m) 
 #70  Georgy Tringov  2589    29y1m   (#342 all-time among players aged 29y1m) 
 #71  Abram Khasin  2587    43y2m   (#177 all-time among players aged 43y2m) 
 #72  Gedeon Barcza  2586    54y8m   (#47 all-time among players aged 54y8m) 
 #73  Petar Trifunovic  2585    55y8m   (#40 all-time among players aged 55y8m) 
 #74  Lubomir Kavalek  2584    22y8m   (#220 all-time among players aged 22y8m) 
 #75  Daniel Yanofsky  2584    41y1m   (#228 all-time among players aged 41y1m) 
 #76  Nikola Padevsky  2583    32y11m   (#370 all-time among players aged 32y11m) 
 #77  Fridrik Olafsson  2582    31y3m   (#386 all-time among players aged 31y3m) 
 #78  Gideon Stĺhlberg  2581    58y3m   (#32 all-time among players aged 58y3m) 
 #79  Dražen Marovic  2578    28y3m   (#394 all-time among players aged 28y3m) 
 #80  Vladimir Savon  2578    25y7m   (#354 all-time among players aged 25y7m) 
 #81  Viacheslav Osnos  2578    30y9m   (#408 all-time among players aged 30y9m) 
 #82  Héctor Rossetto  2578    43y7m   (#201 all-time among players aged 43y7m) 
 #83  Victor Ciocaltea  2577    34y3m   (#358 all-time among players aged 34y3m) 
 #84  Aleksandar Bradvarevic  2576    32y9m   (#390 all-time among players aged 32y9m) 
 #85  Reinhart Fuchs  2575    31y7m   (#432 all-time among players aged 31y7m) 
 #86  Alexander Kotov  2574    52y8m   (#71 all-time among players aged 52y8m) 
 #87  Alexander Zakharov  2573    22y6m   (#250 all-time among players aged 22y6m) 
 #88  Georgy Ilivitsky  2572    45y0m   (#181 all-time among players aged 45y0m) 
 #89  Raimundo Garcia  2570    29y11m   (#447 all-time among players aged 29y11m) 
 #90  Anatoly Bikhovsky  2570    32y0m   (#451 all-time among players aged 32y0m) 
 #91  Anatoly Bannik  2568    44y4m   (#214 all-time among players aged 44y4m) 
 #92  Dragoljub Minic  2565    29y1m   (#449 all-time among players aged 29y1m) 
 #93  Karoly Honfi  2565    35y6m   (#388 all-time among players aged 35y6m) 
 #94  Bernard Zuckerman  2564    23y1m   (#315 all-time among players aged 23y1m) 
 #95  Erich Eliskases  2564    53y2m   (#74 all-time among players aged 53y2m) 
 #96  Bela Soos  2564    36y1m   (#379 all-time among players aged 36y1m) 
 #97  Milko Bobotsov  2562    34y7m   (#432 all-time among players aged 34y7m) 
 #98  Albéric O'Kelly de Galway  2562    54y11m   (#62 all-time among players aged 54y11m) 
 #99  Samuel Schweber  2562    29y9m   (#491 all-time among players aged 29y9m) 
 #100  Yury Gusev  2560    44y7m   (#231 all-time among players aged 44y7m)