| A | ↘ | C | BoardController got worse | 
| A | ↘ | B | BoardController::challenge() got worse | 
| A | ↘ | B | BoardController::clarification() got worse | 
| A | ↘ | B | BoardController::print() got worse | 
| B | ↘ | C | BoardController::editor() got worse | 
| A | ↘ | B | BoardController::analysis() got worse |