Single post in Your Guide to 90%+ Breeding Pairs

Plusle and minun work a little differently to normal pairs. If i am remembering correctly two plusles and two minuns will only breed plusle A plusle and minun will produce minun. Again, this is all from memory so it might be a off but two negatives (minun + minun) make q positive (plusle) Two positives (plusle + plusle) also make a positive (plusle) A positive and a negative (plusle + minun) make a negative (minun) Because of this weird maths shenanigans the pairing of plusle and minun gives the message to show that you have put them together correctly