♻️ (sudoku): fix copy reference

yuanyu90221 · yuanyu90221 · commit 8e2352ab4843 · 2025-09-23T00:52:07.000+08:00
diff --git a/internal/game/puzzle.go b/internal/game/puzzle.go
@@ -74,7 +74,7 @@ func solveCount(board *Board, limit int) int {
 
 // hasUniqueSolution - 是否具有唯一解
 func (board *Board) hasUniqueSolution() bool {
-	copyBoard := *board
+	copyBoard := board.Clone()
 	count := solveCount(&copyBoard, 2)
 	return count == 1
 }

Original file line number	Diff line number	Diff line change
`@@ -74,7 +74,7 @@ func solveCount(board *Board, limit int) int {`
`74`	`74`
`75`	`75`	`// hasUniqueSolution - 是否具有唯一解`
`76`	`76`	`func (board *Board) hasUniqueSolution() bool {`
`77`		`- copyBoard := *board`
	`77`	`+ copyBoard := board.Clone()`
`78`	`78`	`count := solveCount(&copyBoard, 2)`
`79`	`79`	`return count == 1`
`80`	`80`	`}`