單字階梯

遊戲指南

遊戲概覽

單字階梯目標：每一步只改一個字母，並確保中間結果都是有效單字。實例為 CAT → COT → COG → DOG。

操作方式

單字階梯操作：方向選擇並用 OK 確認；觀察 CAT→COG changes two positions。

計分與進度

單字階梯計分：有效新答案加分，關鍵獎勵是 three valid rungs。

技巧建議

單字階梯策略：先分析 work backward from DOG，再提交目前答案。階梯從 CAT 出發，每一層只允許一個位置變化。CAT 到 COT 合法，直接跳到 COG 會同時改兩個字母；可從 DOG 反向尋找共享兩個字母的橋接詞。 英文練習註釋：The displayed rungs make letter-by-letter transformation visible, turning vocabulary into route planning through a tiny implicit graph. Only one indexed position changes at a time, so CAT to COT is legal while CAT to COG skips a required intermediate edge. A direct arrival receives more credit than wandering because every extra valid word is still a detour from the stated destination. Matching the target's final letters early can be tempting, but a bridge must also connect backward to the current spelling. Runtime state names the present rung, destination, and move count, which lets automated checks distinguish genuine graph progress from animation.

行動裝置玩法

單字階梯手機玩法：大型按鈕完成選擇；文字狀態顯示 state.rung and moves。