{"id":18720577,"url":"https://github.com/samchenyu/cppchessengine","last_synced_at":"2025-11-10T21:30:18.576Z","repository":{"id":256915088,"uuid":"842892530","full_name":"SamChenYu/CppChessEngine","owner":"SamChenYu","description":"Minimax Algorithim with Alpha-Beta Pruning, Multi-Threading and Precomputed-Tables","archived":false,"fork":false,"pushed_at":"2024-09-28T22:44:10.000Z","size":241,"stargazers_count":0,"open_issues_count":1,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2024-12-28T11:28:54.025Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/SamChenYu.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-08-15T10:27:01.000Z","updated_at":"2024-10-08T16:29:22.000Z","dependencies_parsed_at":"2024-09-13T22:05:54.443Z","dependency_job_id":"76966d19-4f76-4cfe-9362-d77568289db9","html_url":"https://github.com/SamChenYu/CppChessEngine","commit_stats":null,"previous_names":["samchenyu/cppchessengine"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SamChenYu%2FCppChessEngine","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SamChenYu%2FCppChessEngine/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SamChenYu%2FCppChessEngine/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/SamChenYu%2FCppChessEngine/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/SamChenYu","download_url":"https://codeload.github.com/SamChenYu/CppChessEngine/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239583856,"owners_count":19663282,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-07T13:31:40.713Z","updated_at":"2025-11-10T21:30:18.508Z","avatar_url":"https://github.com/SamChenYu.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# C++ Chess Engine\nUtilising Minimax Algorithim with Alpha-Beta Pruning, Multi-Threading and Precomputed-Tables\n~Roughly 1.5 million nodes per second for evaluation and move generation\n\n## Board Representation: 12 Bitboards (Big Endian)\n\u003cimg width=\"400\" alt=\"16 17 19 19 20 21 22 23\" src=\"https://github.com/user-attachments/assets/7f730726-ab3c-40e6-a5d7-85deac51db99\"\u003e\n\n## EVALUATION Method  \nThe evaluation ranges from -1 to 1:  \n1: Checkmate for white  \n-1: Checkmate for black  \n0: Equal evaluation or stalemate  \n\nThe evaluation is dynamically weighted between the position and material difference.\n\nThe positional difference is calculated with piece square tables. The material difference is calculated with a sigmoid function:  \n\n$y = \\frac{1}{1.1 + e^{(-x+4)}} \\quad \\text{for} \\quad 1 \u003c x \u003c 39$\n\nwhere x is the numerial material difference and y is the material evaluation.  \n[Link to PeSTO's Evaluation Function](https://www.chessprogramming.org/PeSTO%27s_Evaluation_Function)\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsamchenyu%2Fcppchessengine","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsamchenyu%2Fcppchessengine","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsamchenyu%2Fcppchessengine/lists"}