Leave Tubes of the Same Color on One Side (e.g. Green) and Tubes of the Other Color (e.g. Yellow) on Another Side.

Take one of the tubes (for example, green) and shake it and try to find the tube with the same sound inside the tubes of other color.

When you find the right sound, leave the green colored tube in a separate place, leave the other tube between the yellow tubes and replace the yellow tubes.

Then Take Another of the Green Tubes and Try to Find Her Spouse.

Keep Playing Until All Green Tubes Match.