Tic tac toe — price chart, presented in the form of x’s and o’s (non-standard, unlike the usual candles and bars), considered one of the first charts appeared in 20-ies of the last century (at that time the chart was constructed manually). Price movement is a cross up, down, zero, without regard to the time factor. Pros graphics — the ability to see price fluctuations, eliminating small price changes, it is used for long-term strategies.
