Letter on position 1 (m) changed: 6 words birks dirks firks kirks lirks yirks Letter on position 2 (i) changed: 3 words marks merks murks Letter on position 3 (r) changed: 3 words micks milks minks Letter on position 4 (k) changed: 2 words mires mirvs Letter on position 5 (s) changed: 1 word mirky