The HOO - DOO 7 X 7 game
The aim of the game is to place the tokens in the grid in such a way that no token of the same color can be found in the same horizontal, vertical or diagonal line. 49 boxes must be completed. Improve your concentration will improve your time to resolution. Your statistics demonstrate.
Find solutions using all parameters: only with the colours, figures and tokens involved. Then improve your time. All is done easily in less than a minute when it discovered the algorithm with colors and one with figures.