I've noticed many of the versions posted here don't have the numbers on the pieces themselves. I feel like that would make it difficult to play with, especially against someone who is not too familiar with the game.
I am looking for a version to buy, and I like some of these because they look like they would be very resistant to tipping over, but I am not sure about them.
i like my nostalgia (tan wooden box set) ...it has american numbers. with most sets, tipping pieces will occur...what i did was collect 80 2 liter bottle caps and i put the pieces in those preventing any possible tipping or domino effects to occur. plus they are easy to slide that way. also, when playing the memory version (not remain visible) i throw empty 22mm bullet shells in the bottle caps to represent pieces that my opponent has seen or may be tracking. those "seen shells" would be considered a game aid that we both agreed upon.
one thing i noticed with my set though (with the red army)....with really good lighting, you could actually see through the pieces in order to detect bombs (circlish transparent shadow)....that was an easy fix...i just colored all the backs with a black permanent marker .