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Test set-up TAT with the distances for every direction (1a, 1b, 1c). The coupling of the lights at the opponent side and the participant’s side is 2+7; 3+8, 4+9, 5+10, where the combinations of 2+7 and 5+10 represent the standard rally situation, and 3+8 and 4+9 represent the defensive situation.
