A game that never was: Verney’s duodecimal chess
Georgi Markov
Maldivian Chess (Raazuvaa)
Georgi Markov
Turkish Great Chess and Chinese Whispers: Misadventures of a Chess Variant
Georgi Markov, Stefan Härtel
A Note On Chess In 19th Century Turkestan
Georgi Markov
Three Large Chess Variants from India and Germany: a note on their rules
Georgi Markov