Letter 1 (C) changed: 1 word found:
Letter 2 (H) changed: 2 words found:
Letter 3 (O) changed: 3 words found:
Letter 4 (C) changed: 1 word found:
No words found when changing letter 5 (K).
No words found when changing letter 6 (S).
A total of 7 words can be formed from chocks by changing one letter.