Radiance - UCI chess engine, C++
Author: Paul-Elie Pipelin
v.4.0:
Added
Null move pruning
Tests
Error handling for moves, fen and uci
Chess960 support
Changed
Zig codebase
Fen full support
Evalutation (mg, eg) during move
Check detection during move
Executables
Executables versions are related to cpu features, for modern cpu use latest version (v3 for 2013+ and v4 for 2022+).
Radiance 3.4 vs other engines:
| Euwe 2.0.0 | 0/4 | -4 | 4 Games |
| Catto 0.12.5 | 1/3 | -1 | 3 Games |
| Polonium 0.1.5 JA | 0/3 | -3 | 3 Games |
| Munchess 0.1 | 2/2 | +2 | 2 Games |
| Rudim 1.4 JA | 1/2 | +0 | 2 Games |
| Jackal 1.2.0 | 0.5/2 | -1 | 2 Games |
| Zangdar 2.31.04 | 0/2 | -2 | 2 Games |
| Clozza 1.0 | 0/2 | -2 | 2 Games |
| Raphael 1.7.6 JA | 0/2 | -2 | 2 Games |
| Lynx 1.8.0 | 0/2 | -2 | 2 Games |
| Dog 2.5 JA | 0/2 | -2 | 2 Games |
| RukChess 4.0.1 | 0/2 | -2 | 2 Games |
| Arcanum 2.4 | 0/2 | -2 | 2 Games |
| Nectar 0.2.1 | 0/2 | -2 | 2 Games |
| Colossus 2024a | 0/2 | -2 | 2 Games |
| Mayhem 8.5 | 0/2 | -2 | 2 Games |
| Dodecahedron 0.0.1.2 JA | 0/2 | -2 | 2 Games |
| Topas 1.3.3 | 0/2 | -2 | 2 Games |
| ChandraChess 2.0 JA | 0/2 | -2 | 2 Games |
| Rust Chess 0.1.7 | 0/2 | -2 | 2 Games |
| DoctorB 1.2.1 JA | 0/2 | -2 | 2 Games |
interesting games:
[Event "E4.LeagueCEDR.07.2024.OK"]
[Site "Chess Engines Diary"]
[Date "2024.11.25"]
[Round "1.246"]
[White "Radiance 3.3"]
[Black "Kairuku 1.0.1 JA"]
[Result "1-0"]
[ECO "E15"]
[PlyCount "359"]
[EventDate "2024.??.??"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6
8. Bc3 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. O-O Qc7 12. Nd2 b5 13. cxb5
cxb5 14. Rc1 Qb7 15. Ba5 Bd6 16. e4 b4 17. Re1 O-O 18. e5 Be7 19. Rc7
Qb5 20. Bf1 Qxa5 21. Rxd7 Bxf1 22. Rxf1 Rfe8 23. Qc2 Qb6 24. Nf3 f5 25.
Qc7 Qxc7 26. Rxc7 Bd8 27. Rd7 Re7 28. Rxe7 Bxe7 29. Rc1 Kf8 30. Rc6 Kf7
31. Rc7 h6 32. Nh4 g5 33. Ng6 Re8 34. Nxe7 Rxe7 35. Rc6 Rd7 36. Kf1 g4
37. Ke2 Re7 38. Rc8 Re8 39. Rc7+ Re7 40. Rc6 Re8 41. Ke3 Re7 42. Rc8
Rb7 43. Rh8 Kg7 44. Re8 Kf7 45. Rc8 Kg7 46. Kf4 Kf7 47. Rh8 Kg7 48. Rc8
Kf7 49. Rh8 Kg7 50. Re8 Kf7 51. Rc8 Kg7 52. f3 gxf3 53. Kxf3 Kf7 54. h3
Kg7 55. Re8 Kf7 56. Rh8 Kg7 57. Re8 Kf7 58. Rc8 Kg7 59. Ke3 Kf7 60. Rh8
Kg7 61. Re8 Kf7 62. Rh8 Kg7 63. Rc8 Kf7 64. Kf4 Kg7 65. Rd8 Kf7 66. Rh8
Kg7 67. Rc8 Kf7 68. Rh8 Kg7 69. Re8 Kf7 70. Rc8 Kg7 71. Kf3 Kf7 72. Ke3
a6 73. Rh8 Kg7 74. Ra8 Rb6 75. Ra7+ Kg6 76. Rc7 h5 77. h4 Kh6 78. Rc8
Kg6 79. Rc7 Kh6 80. Rf7 Kg6 81. Re7 Rc6 82. Kf3 Rc3+ 83. Kf4 Rc6 84.
Ke3 Rc3+ 85. Kf2 Rc2+ 86. Kf3 Rc3+ 87. Ke2 Rc2+ 88. Ke3 Rc3+ 89. Kf4
Rc6 90. Ra7 Rb6 91. Rc7 Kh6 92. Rc8 Kg6 93. Rc7 Kh6 94. Ke3 Kg6 95. Kf3
Kh6 96. Ke3 Kg6 97. Kf3 Kh6 98. Ke2 Kg6 99. Kf2 Kh6 100. Re7 Kg6 101.
Ke3 Rc6 102. Kf4 Rb6 103. Kf3 Rc6 104. Kf4 Rb6 105. Re8 Rc6 106. Rf8
Kh6 107. Rf7 Kg6 108. Rf6+ Kg7 109. Kg5 a5 110. Kxh5 Rc3 111. Rxe6 Rxg3
112. Ra6 Rg4 113. Rxa5 Rxd4 114. Ra7+ Kg8 115. Kg6 Rg4+ 116. Kxf5 Rxh4
117. e6 Re4 118. Ra5 Re2 119. Rxd5 Rf2+ 120. Kg6 Rg2+ 121. Kf6 Rxa2
122. Rd8+ Kh7 123. e7 Rf2+ 124. Kg5 Rg2+ 125. Kf4 Re2 126. e8=R Rf2+
127. Kg5 Rg2+ 128. Kh4 Rb2 129. Re6 Kg7 130. Rd7+ Kf8 131. Rf6+ Ke8
132. Rff7 Rxb3 133. Rde7+ Kd8 134. Rd7+ Ke8 135. Rfe7+ Kf8 136. Kg4 Rb2
137. Rf7+ Kg8 138. Rg7+ Kf8 139. Rgf7+ Kg8 140. Rg7+ Kf8 141. Rdf7+ Ke8
142. Re7+ Kf8 143. Rgf7+ Kg8 144. Rg7+ Kf8 145. Rgf7+ Kg8 146. Kf5 b3
147. Rg7+ Kf8 148. Rgf7+ Kg8 149. Rg7+ Kf8 150. Rh7 Rf2+ 151. Ke6 Re2+
152. Kf6 Rf2+ 153. Ke6 Re2+ 154. Kf6 Rf2+ 155. Kg6 Rg2+ 156. Kh6 b2
157. Rhf7+ Kg8 158. Rf5 Rh2+ 159. Kg6 Rg2+ 160. Kf6 Kf8 161. Rd7 Ke8
162. Re7+ Kf8 163. Ke6+ Kg8 164. Re8+ Kh7 165. Re7+ Kg8 166. Re8+ Kh7
167. Rf7+ Rg7 168. Rb8 Rxf7 169. Kxf7 Kh6 170. Rb5 b1=B 171. Rxb1 Kg5
172. Re1 Kf5 173. Re7 Kf4 174. Kg6 Kg4 175. Rf7 Kg3 176. Kg5 Kg2 177.
Kg4 Kh2 178. Kf3 Kg1 179. Kg3 Kh1 180. Rf1# 1-0
[Event "E4.LeagueCEDR.07.2024.OK"]
[Site "Chess Engines Diary"]
[Date "2024.11.25"]
[Round "1.162"]
[White "Radiance 3.3"]
[Black "DoctorB 1.2.1 JA"]
[Result "1-0"]
[ECO "E15"]
[PlyCount "91"]
[EventDate "2024.??.??"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6
8. Bc3 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. O-O b5 12. c5 Bf6 13. a4 O-O
14. axb5 Bxb5 15. Ba5 Qc8 16. Nc3 Rb8 17. Nxb5 Rxb5 18. b4 e5 19. e3
Re8 20. Rc1 exd4 21. exd4 Nf8 22. Qd3 Rb7 23. Rcd1 Rb8 24. Bf3 Rb7 25.
Qc3 Rb8 26. Rfe1 Rxe1+ 27. Qxe1 g5 28. Qe2 Ne6 29. Bg4 Qe8 30. h4 gxh4
31. Bf5 Nxd4 32. Qg4+ Kh8 33. Rxd4 hxg3 34. Rd1 gxf2+ 35. Kxf2 Qe5 36.
Rh1 Qb2+ 37. Qe2 Bd4+ 38. Kf3 Qxe2+ 39. Kxe2 Bc3 40. Bd7 Bxb4 41. Bc7
Rb5 42. Be5+ f6 43. Bxf6+ Kg8 44. Be6+ Kf8 45. Rxh7 Bxc5 46. Rh8# 1-0
[Event "E4.LeagueCEDR.07.2024.OK"]
[Site "Chess Engines Diary"]
[Date "2024.11.25"]
[Round "1.110"]
[White "Radiance 3.3"]
[Black "Phalp 22032400 JA"]
[Result "1-0"]
[ECO "E15"]
[PlyCount "129"]
[EventDate "2024.??.??"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6
8. Bc3 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. O-O O-O 12. Nd2 Nf6 13. e4 dxe4
14. Nxe4 Rc8 15. Re1 Nxe4 16. Bxe4 Bf6 17. Rc1 h6 18. a4 Bb7 19. h3 Re8
20. c5 Qd7 21. a5 bxa5 22. Ra1 a6 23. Ra4 e5 24. dxe5 Qxd1 25. Rxd1
Bxe5 26. Bxe5 Rxe5 27. Rd7 Ba8 28. Rc4 Rb8 29. Kh1 Ree8 30. Bc2 Re2 31.
Kg2 Rbe8 32. Bd3 R2e5 33. Rc1 Rd5 34. Rxd5 cxd5 35. c6 a4 36. bxa4 Rc8
37. c7 Bb7 38. Bf5 d4+ 39. Kf1 h5 40. Bxc8 Bxc8 41. Ke2 h4 42. Rd1 hxg3
43. fxg3 Bxh3 44. Rxd4 Be6 45. Rd8+ Kh7 46. c8=R Bg4+ 47. Ke3 Bxc8 48.
Rxc8 a5 49. Rc6 Kg8 50. Rc7 Kf8 51. Kf4 Ke8 52. Kf5 Kf8 53. Kg5 Ke8 54.
Kf4 Kf8 55. Kf5 Ke8 56. g4 Kf8 57. g5 Ke8 58. g6 fxg6+ 59. Kxg6 Kd8 60.
Rxg7 Kc8 61. Kf5 Kb8 62. Ke5 Kc8 63. Kd6 Kb8 64. Kc6 Kc8 65. Rg8# 1-0
[Event "2024.12.20.AmateurSection.GroupE-17.Ed."]
[Site "Chess Engines Diary"]
[Date "2024.12.20"]
[Round "1.74"]
[White "Radiance 3.3"]
[Black "Annie 2024-07-08"]
[Result "1-0"]
[ECO "E15"]
[PlyCount "73"]
[EventDate "2024.??.??"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6
8. Bc3 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. O-O Qc7 12. Nd2 b5 13. cxb5
cxb5 14. Rc1 Qb7 15. Ba5 b4 16. Re1 Qb5 17. Bc7 f5 18. Nc4 O-O 19. Nd6
Bxd6 20. a4 bxa3 21. Bxd6 Rfe8 22. Bxa3 Bb7 23. e3 e5 24. dxe5 Rxe5 25.
Rc7 Rd8 26. Bd6 Re4 27. Bxe4 fxe4 28. Qg4 Qa5 29. Rd1 Bc8 30. Be5 g6
31. Qe6+ Kf8 32. Bd6+ Kg7 33. Qe7+ Kg8 34. Qxd8+ Kf7 35. Qe7+ Kg8 36.
Qe8+ Kg7 37. Qf8# 1-0
[Event "2024.12.20.AmateurSection.GroupE-17.Ed."]
[Site "Chess Engines Diary"]
[Date "2024.12.20"]
[Round "1.85"]
[White "Radiance 3.3"]
[Black "Kairuku 1.0.1 JA"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "273"]
[EventDate "2024.??.??"]
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. c3 d6 7. h3 h6
8. Re1 a6 9. Nbd2 Na5 10. b4 Nxc4 11. Nxc4 Ba7 12. Be3 Bxe3 13. Nxe3
Re8 14. Nf5 Bxf5 15. exf5 Qd7 16. Nh4 d5 17. Rc1 e4 18. d4 Kf8 19. Qc2
Rad8 20. a4 Qd6 21. Rcd1 Ke7 22. g3 Qd7 23. Qe2 Qxa4 24. Nf3 Kd6 25.
Ne5 Rf8 26. Qd2 Qb5 27. Qf4 Rde8 28. Ng6+ Kc6 29. Nxf8 Rxf8 30. Qe5 Re8
31. Qf4 Qc4 32. Qc1 Rh8 33. Qa1 Rd8 34. Qa4+ Kd6 35. Rc1 Qd3 36. Re3
Qd2 37. Rd1 Qb2 38. Rde1 Ra8 39. Qa5 Qb3 40. Qa1 Re8 41. Rb1 Qc4 42.
Rd1 Qc6 43. Qa3 Qb5 44. Ree1 Rd8 45. Qc1 Qc4 46. Qb2 Rg8 47. Qa3 Qb5
48. Qc1 Rd8 49. Qd2 Kd7 50. Qc1 Qc4 51. Qb2 h5 52. Qd2 Re8 53. Qg5 Rg8
54. Rc1 Qd3 55. Re3 Qd2 56. Rce1 Qc2 57. R1e2 Qd1+ 58. Re1 Qb3 59. Rc1
Kd6 60. Ree1 Qc4 61. Rf1 Qd3 62. Rfe1 Kc6 63. Re3 Qc4 64. Ree1 Kd7 65.
Re3 Qb3 66. Ree1 Qa2 67. Ra1 Qb2 68. Rac1 Kc6 69. Rb1 Qa2 70. Ra1 Qb3
71. Rab1 Qc2 72. Rbc1 Qa4 73. Rcd1 Qb5 74. Qd2 Qc4 75. Qc1 Kd7 76. Qb2
g6 77. fxg6 Rxg6 78. Qc1 Ke6 79. Qc2 Qc6 80. Kh1 Qb5 81. h4 Qc6 82. Kg1
Rg8 83. Qd2 Rg7 84. Qc1 Rg4 85. Qd2 Qb6 86. Qh6 Qb5 87. Kh2 Qc4 88. Qd2
Rg7 89. Kh1 Qc6 90. Kg1 Qb6 91. Qh6 Rg6 92. Qf8 Rg8 93. Qh6 Kd7 94. Rb1
Qd6 95. Rbc1 Rg6 96. Qh8 Rg4 97. Rcd1 Rg8 98. Qh6 Qc6 99. Rb1 Ke6 100.
Re3 Rg6 101. Qf8 Ng4 102. Qc8+ Ke7 103. Re2 Qxc3 104. Rf1 Rb6 105. Qf5
Qxd4 106. Qxh5 Nf6 107. Qh8 Rxb4 108. Rfe1 Rb3 109. Kg2 Ke6 110. Qc8+
Kd6 111. Qf8+ Ke5 112. Qe7+ Kf5 113. Qxf7 Qb6 114. g4+ Ke5 115. g5 Ng4
116. Rd1 c6 117. g6 Nf6 118. g7 Qd8 119. h5 Qc8 120. f4+ Kf5 121. Qg6+
Ke6 122. h6 Ke7 123. f5 Qg8 124. Ree1 Rb2+ 125. Kg1 Qb8 126. g8=N+ Qxg8
127. Rxe4+ dxe4 128. Qxg8 Nxg8 129. h7 Nf6 130. h8=Q Kf7 131. Rd8 Rb1+
132. Kg2 Rb2+ 133. Kg3 Nh5+ 134. Qxh5+ Kf6 135. Qg6+ Ke7 136. Qd6+ Kf7
137. Qf8# 1-0
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