<prompt> Nyorai kupfuurira kweiyi ndima - Pfungwa yokupa chibayiro chembambo ine...b5 uye...a6 yakare zvikuru. Karel Opočenský akashandisa pfungwa yacho, pakati pevamwe, Gideon Ståhlberg paPoděbrady 1936, Paul Keres paPärnu 1937, Erich Eliskases kuPrague 1937, uye Theo van Scheltinga paBuenos Aires Chess Olympiad 1939  <response>: . Gare gare, mutambo waMark Taimanov naDavid Bronstein paCandidates Tournament, Zürich 1953, wakakwezva ngwariro. Mitambo mizhinjisa iyi yakatanga seKings Indian, naBlack gare gare achitamba...c5 uye...b5. Zvichida mutambo wokutanga wakashandisa zvino unozivikanwa 1.d4 Nf6 2.c4 c5 3.d5 b5 waiva ThorvaldssonVaitonis, Munich Olympiad 1936. 