Rubuta ci gaba ga wannan sakin layi - Kupchik ya taka leda a tawagar Amurka a gasar Olympics ta 6 na Chess
a Warsaw a shekara ta 1935. Ya zira kwallaye (+ 6 -0 = 8) a tebur na uku, kuma ya lashe lambar tagulla ta mutum da lambar zinare ta ƙungiya. Ya buga a kan Board 9 a wasan rediyo na USSR-USA na 1945, ya rasa 1⁄2-11⁄2 ga Vladimir Makogonov.