 The most important Indian Defenses are listed below, but many others have been studied and played; see Indian Defense for details.Of the defenses to 1.d4 other than 1...d5 and 1...Nf6, the most important are the Dutch Defense and the Benoni Defense.The Dutch, an aggressive defense adopted for a time by World Champions Alekhine and Botvinnik, and played by both Botvinnik and challenger David Bronstein in their 1951 world championship match, is still played occasionally at the top level by Short and others.