一款名为 Reverse Minesweeper 的益智游戏项目在 Hacker News 上展示，该游戏通过精心设计的谜题生成算法和难度分级系统为玩家提供差异化的逻辑推理挑战[1]。游戏包含五个难度等级，分别为 Easy、Medium、Hard、Extreme 和 Insane，每个等级对应不同的推理技巧复杂度[1]。
游戏的难度系统通过 0-100 分的评分机制量化谜题难度[1]。Easy 等级评分为 4-19 分，对应基础单线索推演技巧；Medium 等级 20-39 分采用子集推理；Hard 等级 40-59 分涉及重叠分析；Extreme 等级 60-79 分需要假设链推理；Insane 等级 80-100 分要求超出上述范畴的复杂推理[1]。系统估算求解时间时，以每格标记约 1 秒、每个基础推演约 2 秒为基础，进阶技巧则分别需约 14 秒（子集）、26 秒（重叠）和 15 秒加每步 10 秒（假设链）[1]。在谜题生成策略上，系统会尝试最多 90 个候选方案来匹配预设的难度目标[1]。此外，游戏对"零线索"瓦片的分布进行了差异化设置：Easy 和 Medium 难度含 1-2 个零瓦片，Hard 恰好 1 个，而 Extreme 和 Insane 则不包含零瓦片[1]。
A new puzzle game called Reverse Minesweeper has been introduced, featuring a sophisticated difficulty-scaling system and algorithmic puzzle generation [1]. The game presents players with five distinct difficulty tiers—Easy, Medium, Hard, Extreme, and Insane—each designed to challenge progressively advanced logical reasoning skills [1].
The difficulty progression maps to specific problem-solving techniques [1]. Easy puzzles rely on basic single-clue deduction, while Medium introduces subset analysis [1]. Hard levels incorporate overlapping constraint reasoning, Extreme requires hypothetical chain logic, and Insane demands reasoning beyond standard deductive bounds [1]. Each puzzle receives a numerical difficulty score between 0 and 100, with Easy ranging from 4–19, Medium from 20–39, Hard from 40–59, Extreme from 60–79, and Insane from 80–100 [1].
The game's puzzle generation engine employs a calibrated algorithm that evaluates candidate puzzles against target difficulty parameters [1]. The system estimates solving time by calculating tile markings at approximately one second per tile, basic deductions at two seconds, subset analysis at fourteen seconds, overlap reasoning at twenty-six seconds, and what-if hypotheticals starting at fifteen seconds plus ten seconds per step [1]. Puzzle distribution includes specific constraints on zero-clue tiles: Easy and Medium puzzles contain one to two zero tiles, Hard contains exactly one, while Extreme and Insane contain none [1]. The generator attempts up to ninety candidate configurations to match the desired difficulty setting [1].