I uploaded info on the newer Tiger Copy Cat game. The TI Master Selection 1983 doc says that the 20-pin version of the TMS1700 is the TMS1730, with 5 O outputs and 6 R outputs, but doesn't show the pinout. I'm not completely sure which of the 8 O and 9 R outputs were used- I tried to guess from the die shot. But 22 pads were bonded on the die, although the chip only had 20 pins. For some reason, 2 of the unused O output pads were bonded to.