Letter on position 1 (c) changed: 8 words darts farts harts karts marts parts tarts warts Letter on position 2 (a) changed: 1 word certs Letter on position 3 (r) changed: 2 words cants casts Letter on position 4 (t) changed: 8 words carbs cards cares carks carls carns carps carrs Letter on position 5 (s) changed: 2 words carta carte