<prompt> Ngwala tšwetšopele ya serapa se - Kgopolo ya go dira sehlabelo ka molemi ka...b5 le...a6 ke ya kgale. Karel Opočenský o ile a diriša kgopolo ye kgahlanong le, gare ga ba bangwe, Gideon Ståhlberg kua Poděbrady 1936, Paul Keres kua Pärnu 1937, Erich Eliskases kua Prague 1937, le Theo van Scheltinga kua Buenos Aires Chess Olympiad 1939. Ka morago, papadi ya Mark Taimanov kgahlanong le David Bronstein go Phadišano ya Bakgopedi, Zurich 1953, e ile ya goga tlhokomelo. Bontši bja dipapadi tše di be di thoma e le Kings Indian, gomme ka morago ga moo e be e le Black yo a bego a bapala...c5 le...b5. Mohlomongwe papadi ya mathomo yeo e dirišitšego mokgwa wo o tlwaelegilego ga bjale wa 1.d4 Nf6 2.c4 c5 3.d5 b5 e be e le ThorvaldssonVaitonis, Munich Olympiad 1936  <response>: .. le 