| Level
| Author
| Title
|
| All
| Software
|
|
| 1
| Fischer,
Margulies,
Mosenfelder
|
|
| 1
| Software
|
|
| 1, 2, 3
| Laszlo Polgar
|
|
| 2
| Jose Capablanca
|
|
| 2
| David MacEnulty
|
|
| 2
| Siegbert Tarrasch
|
|
| 2
| George Koltanowski,
Milton Finkelstein
|
|
| 2, 3
| Fred Reinfeld
|
|
| 2, 3
| Fred Reinfeld
|
|
| 2,3
| Yakov Neishtadt
|
|
| 3
| Irving Chernev
|
|
| 3
| Bill Robertie
|
|
| 3
| Bill Robertie
|
|
| 3
| Irving Chernev
|
|
| 3
| Harry Golombek
|
|
| 3
| Irving Chernev
|
|
| 3
| Alexander Alekhine
|
|
| 3
| Macon Shibut
|
|
| 3+
| Software
|
|
| 3, 4
| Graham Burgess, et al
|
|
| 4
| Reuben Fine
|
|
| 4
| Vladimir Vukovic
|
|
| 4
| A. Kotov
|
|
| 4
| C.J.S. Purdy
|
|
| 4
| Lajos Portisch
|
|
| 4
| Jeremy Silman
|
|
| 4
| Jeremy Silman
|
|
| 4
| Jeremy Silman
|
|
| 4
| John Nunn,
Joe Gallagher,
John Emms,
Graham Burgess
|
|
| 5
| Max Euwe
|
|
| 5
| Max Euwe
|
|
| 5
| Paul Keres
|
|
| 5
| Paul Keres
|
|
| 5
| Aron Nimzowitsch
|
|
| 5
| Reuben Fine
|
|
| 5
| P. A. Romanovskii
|
|
| 5
| John Nunn, et al
|
|
| 5
| Grigory Levenfish
Vasily Smyslov
|
|
| 5
| Anatoly Karpov
|
|
| 6
| Yefim Geller
|
|
| 6
| Garry Kasparov
|
|
| 6
| Garry Kasparov
|
|
| 6
| Garry Kasparov
|
|
| 6
| Garry Kasparov
|
|
| 6
| Paata Gaprindashvili
|
|
| 6+
| Andrei Volokitin
|
|
| 6+
| Mark Dvoretsky
|
|
| 6+
| Mark Dvoretsky
|
|
