>>55075383Yes 2m is correct.
One of the beginner mistakes is to complete a meld, then get rid of any tiles they think are redundant.
11235s
some new players would see 123s and cut 1s because they feel 123s is complete.
This is wrong because 23s can still become a meld by another 14s, allowing our pair to become 11s.
If that was to occur, we should try for pinfu (1 hand), which confirms our 1s head (pair).
This would mean discarding 7m. and hoping to pull 68m, which actually has a surprisingly high chance of happening.
Riichi is 1 han so don't forget to consider that.
Our discard priority in terms of raw efficiency: 2m, 3p, 5s.