Leptir 280223

[DeletedUser190323]

28 Febr 2023: Leptir 280223
Leptir has a slower search than Charisma, but is nearly as strong tactically. Leptir's special strength is its beautiful positional play. Leptir uses the Stockfish NNUE network "nn-c232c4319bdd.nnue". It is possible to use other NNUE networks as well. I played with 5 cores Blitz on the server, and the engine didn't show any tactical weaknesses.

Download on my homepage:
https://solistachess.jimdosite.com/solista-news/

[DeletedUser190323]

01 Mar 2022: Leptir Classic
Leptir Classic uses an older NNUE network which is tactically stronger, but positionally a little weaker. Leptir Classic for Windows 64-Bit: Pixeldrain & Filehorst.de
https://solistachess.jimdosite.com/solista-news/

[DeletedUser190323]

All my engines have the option to set "Minimum Thinking Time". This is very important for server games without bonus times. Here's an example from this morning on PlayChess.com.

Unfortunately, Eman does not have this option. That's why I don't want to play blitz games with this engine. So it happens that with little time, a senseless move is made in 0s and depth 1, which leads to a loss.

Eman 8.70: 178...a6 {0.00/1 0 ?? and the game is lost.

[Event "Rated game, 5 min"] [Site "Engine Room"] [Date "2023.03.03"] [Round "?"] [White "Solista, Leptir Classic-avx2"] [Black "Desvelemosafrica, EMAN 8.70 64-bit SS"] [Result "1-0"] [ECO "B09"] [WhiteElo "2970"] [BlackElo "2958"] [Annotator "0.48;0.71"] [PlyCount "405"] [EventDate "2023.03.03"] [SourceTitle "playchess.com"] [TimeControl "300"] {EMAN 8.70 64-bit SSE41 POPCNT (8 threads): 55.4 plies; 4.480kN/s Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz 3492MHz, (4 cores, 8 threads), Solista Universal v2.1 extreme.ctg, 2048 MB} 1. f4 {B 0} g6 {B 0} 2. e4 {B 0} Bg7 {B 0} 3. d4 {0.48/34 9} d6 {B 0} 4. Nc3 {B 0} Nf6 {B 0} 5. Bd3 {B 0} e5 {B 0} 6. dxe5 {0.51/27 3} dxe5 {B 0} 7. Nf3 {0.56/27 4} exf4 {B 0} 8. Bxf4 {0.56/30 5} O-O {B 0} 9. Qd2 {0.57/26 3} c5 {B 0 (Bg4)} 10. Bh6 {0.50/32 19} Nc6 {B 0} 11. Bxg7 {0.49/29 4} Kxg7 {B 0} 12. O-O-O {0.50/26 4} Bg4 {B 0} 13. Qg5 {0.56/31 12} Bxf3 {B 0} 14. gxf3 {0.56/31 4} Qe7 {B 0} 15. f4 {0.53/29 11} Nh5 {B 0 (Rad8)} 16. Qxe7 {0.52/31 10} Nxe7 {0.71/31 16} 17. Rhf1 {0.66/32 0} Rad8 {0.80/32 11} 18. b3 {0.68/30 0 (Tde1)} Kh6 {0.71/34 46 (Nc6)} 19. e5 {0.71/32 13} f6 {0.74/32 5} 20. Ne4 {0.75/32 5 (Cb5)} Nf5 {0.62/28 11 (b6)} 21. Bb5 {0.74/29 4} Ne3 {0.63/29 5} 22. Rxd8 {0.74/34 2} Rxd8 {0.61/29 2} 23. Rf3 {0.82/32 1} Nf5 {0.59/31 8} 24. exf6 {0.55/34 7} Nd4 {0.70/30 0} 25. Rd3 {0.75/33 3} Nxf4 {0.80/32 7} 26. Rd2 {0.73/35 0} b6 {0.88/32 8} 27. Bc4 {0.79/34 0} g5 {0.85/30 5} 28. f7 {0.79/33 0} Ng6 {0.87/31 4} 29. Rf2 {0.86/31 2} Rf8 {0.83/26 2} 30. h3 {0.84/32 8} b5 {0.84/31 6} 31. Bf1 {0.80/34 0} Nf4 {0.75/31 16} 32. h4 {0.73/34 0} Rxf7 {0.80/30 3} 33. hxg5+ {0.71/34 2} Kg6 {0.76/27 2} 34. c3 {0.69/34 3} Nde6 {0.75/30 9} 35. Bxb5 {0.70/35 2} Nh3 {0.73/26 2} 36. Rg2 {0.83/33 5} Rf3 {0.61/29 4} 37. Be8+ {0.84/34 0} Kf5 {0.64/30 3} 38. Nd6+ {0.92/33 0 (Ac6)} Ke5 {0.62/30 3} 39. Nc4+ {0.81/35 3} Kf5 {0.59/31 0} 40. Nd6+ {0.84/39 17 (g6)} Ke5 {0.80/32 4} 41. Nc4+ {0.81/38 0} Kf5 {0.83/33 3} 42. g6 {0.82/40 1} hxg6 {0.69/34 1} 43. Bxg6+ {0.86/39 9} Kf6 {0.78/35 0} 44. Be4 {0.64/40 7} Rf1+ {0.81/37 0} 45. Kc2 {0.63/34 2} Rf2+ {0.77/31 1} 46. Rxf2+ {0.75/36 1} Nxf2 {0.73/35 2} 47. Bf3 {0.74/36 1} Ng5 {0.74/33 2} 48. Bd5 {0.80/38 6} Ke7 {0.78/37 1 (Ng4)} 49. a3 {0.84/38 2} Ng4 {0.76/40 7 (Kd7)} 50. b4 {0.80/44 2} cxb4 {0.76/36 0} 51. axb4 {0.79/44 3} Kd7 {0.76/34 1} 52. Ba8 {0.79/42 2 (Ah1)} Ne6 {0.80/37 2} 53. Bg2 {0.78/39 1 (Af3)} Nh6 {0.65/37 8 (Nf6)} 54. Kd2 {0.67/37 3 (Ca5)} Nf4 {0.68/33 2} 55. Be4 {0.66/41 0} Nf7 {0.64/34 2} 56. Na5 {0.65/40 1} Kc7 {0.67/37 1} 57. Ke3 {0.65/50 1 (c4)} Ne6 {0.68/37 2} 58. c4 {0.65/45 0} Ne5 {0.69/41 5} 59. Kd2 {0.73/42 5 (Ad5)} Nd4 {0.58/34 4} 60. Ke3 {0.62/42 0} Ne6 {0.58/38 1} 61. Bd5 {0.61/52 1} Kd6 {0.66/34 1} 62. Nb7+ {0.61/42 1 (Ah1)} Kd7 {0.67/35 2} 63. Na5 {0.61/45 0} Kd6 {0.71/35 1 (Ng4+)} 64. Ke4 {0.60/40 2 (Rd2)} Nd7 {0.69/29 1} 65. Nb7+ {0.58/43 0 (Ab7)} Ke7 {0.59/35 2} 66. Na5 {0.58/46 0} Kd6 {0.67/40 3} 67. Bb7 {0.58/47 2 (Aa8)} Kc7 {0.55/44 1} 68. Kd5 {0.58/46 0} Nd8 {0.52/45 1 (Nf4+)} 69. Ba6 {0.79/38 2} Nb6+ {0.55/45 0 (Nf6+)} 70. Kd4 {0.69/55 4} Nc6+ {0.57/49 0} 71. Nxc6 {0.69/47 1} Kxc6 {0.54/43 0} 72. Bb5+ {0.61/50 2} Kc7 {0.55/49 1} 73. Be8 {0.59/51 1 (Rc5)} Na8 {0.16/27 1 (Nc8)} 74. Kc5 {0.45/52 5} Kc8 {0.25/49 0 (Kb8)} 75. Kd6 {0.46/52 1 (Af7)} Nc7 {0.23/57 3} 76. Bd7+ {0.45/60 0 (Ac6)} Kb8 {0.23/54 1} 77. Bc6 {0.46/57 0 (b5)} Kc8 {0.24/61 2 (Na6)} 78. b5 {0.46/60 2} Kb8 {0.24/57 0} 79. Be4 {0.46/57 2 (Re7)} Ne8+ {0.26/54 1} 80. Ke7 {0.43/51 0 (Rc6)} Nc7 {0.26/60 1} 81. Bf3 {0.45/55 0 (Rd7)} Kc8 {0.25/61 1} 82. Bc6 {0.45/60 0 (Ad5)} Kb8 {0.25/56 2} 83. Kd6 {0.45/61 0 (c5)} Kc8 {0.24/65 1} 84. Bd7+ {0.45/63 0 (Ae4)} Kb7 {0.24/62 1 (Kb8)} 85. Bc6+ {0.45/61 1 (Rc5)} Kb8 {0.24/73 1 (Kc8)} 86. Be4 {0.46/63 2 (Ag2)} Ne8+ {0.22/53 3 (Kc8)} 87. Kc6 {0.43/48 13} Nc7 {0.18/73 0} 88. Kc5 {0.46/61 1 (Rd7)} Ne8 {0.21/65 2 (Ne6+)} 89. Kc6 {0.43/54 1} Nc7 {0.18/64 0} 90. Kd7 {0.45/55 2 (Ab1)} Na6 {0.18/74 1} 91. Kd6 {0.45/51 0 (Af5)} Nc7 {0.18/80 1} 92. Kd7 {0.46/55 1 (Re7)} Na6 {0.18/69 0} 93. Bc6 {0.46/54 0 (Rd6)} Nc7 {0.18/73 1} 94. Kd6 {0.46/58 0} Kc8 {0.18/69 0} 95. Ke7 {0.46/61 0 (Ad7+)} Kb8 {0.18/65 0} 96. c5 {0.46/62 1 (Af3)} Kc8 {0.18/42 0} 97. Kf7 {0.43/48 0 (Rf6)} Kb8 {0.14/55 1} 98. Kf6 {0.46/53 0 (Re7)} Kc8 {0.09/38 0} 99. Kf5 {0.46/53 0 (Re5)} Kb8 {0.00/57 1 (Kd8)} 100. Ke4 {0.37/45 2 (Rf6)} Kc8 {0.07/59 1} 101. Kd4 {0.46/47 0} Ne6+ {0.00/58 1 (Kd8)} 102. Kd5 {0.29/42 1} Nc7+ {0.13/59 0} 103. Kc4 {0.26/49 1} Kb8 {0.00/61 0} 104. Kb4 {0.26/42 0 (Af3)} Kc8 {0.00/62 0 (Ne6)} 105. Kb3 {0.29/43 1 (Rc3)} Ne6 {0.00/73 1 (Kb8)} 106. Kc4 {0.23/50 0} Kb8 {0.00/67 3} 107. Bd7 {0.26/54 0 (Ag2)} Nc7 {0.00/79 1} 108. Bc6 {0.30/50 0 (Rd4)} Ne6 {0.00/72 1 (Kc8)} 109. Bg2 {0.65/33 1 (Rb4)} Nc7 {0.00/77 0} 110. Be4 {0.61/39 0 (Rb4)} Kc8 {0.00/68 0} 111. Kb4 {0.65/40 0 (Ad3)} Kb8 {0.00/78 0} 112. Bd3 {0.22/43 1 (Rc4)} Nd5+ {0.00/80 0} 113. Kc4 {0.22/46 0} Nc7 {0.00/74 0} 114. Kc3 {0.20/58 0 (Af5)} Ne6 {0.00/73 1 (Kc8)} 115. Kc4 {0.20/63 0} Nc7 {0.00/71 0} 116. Kd4 {0.20/57 0 (Af5)} Kc8 {0.00/72 0} 117. Bf5+ {0.20/48 0 (Ac4)} Kb8 {0.00/70 0} 118. Kc4 {0.19/51 0 (Ad3)} Ka8 {0.00/68 1 (Kb7)} 119. Be4+ {0.16/60 1 (Ah3)} Kb8 {0.00/68 0} 120. Bf3 {0.16/51 0 (Ag2)} Ne6 {0.00/71 1} 121. Bc6 {0.13/43 0 (Ae2)} Nc7 {0.00/78 1} 122. Bd5 {0.02/44 0 (Rc3)} Ne8 {0.00/71 0} 123. Kd4 {0.00/50 0} Nc7 {0.00/65 0} 124. Bc4 {0.00/55 0} Kc8 {0.00/63 0} 125. Bd3 {0.00/53 0 (Rc3)} Kb7 {0.00/54 0 (Kb8)} 126. Be4+ {0.00/68 0 (Re5)} Kb8 {0.00/61 0} 127. Bd3 {0.00/59 0 (Ac6)} Ne6+ {0.00/67 0 (Ne8)} 128. Kd5 {0.00/58 0} Nc7+ {0.00/69 0 (Nf4+)} 129. Kd6 {0.00/60 0 (Re5)} Na8 {0.00/76 1 (Kc8)} 130. Kd7 {0.00/65 0} Nc7 {0.00/69 0} 131. c6 {0.00/62 0 (Ac4)} Na8 {0.00/107 0} 132. Kd8 {0.00/63 0 (Ae2)} Nc7 {0.00/86 0} 133. Ke7 {0.00/60 0 (Ac4)} Kc8 {0.00/33 0} 134. Bf5+ {0.00/61 0} Kb8 {0.00/95 0} 135. Bd3 {0.00/60 0 (Rd7)} Kc8 {0.00/92 0} 136. Kd6 {0.00/61 0} Kd8 {0.00/85 0} 137. Kc5 {0.00/61 0 (b6)} Na8 {0.00/123 1 (Ne6+)} 138. Bf5 {0.00/67 0 (c7+)} Ke7 {0.00/116 0 (Kc7)} 139. Bh3 {0.00/70 0 (c7)} Kd8 {0.00/105 0} 140. Kd6 {0.00/61 0 (Af5)} Nc7 {0.00/111 0} 141. Kc5 {0.00/63 0 (b6)} Na8 {0.00/94 0 (Ne8)} 142. Be6 {0.00/66 0 (c7+)} Kc7 {0.00/94 0 (Nc7)} 143. Bf5 {0.00/62 0 (b6+)} Nb6 {0.00/93 0 (Kd8)} 144. Bd3 {0.00/70 0 (Ae6)} Na8 {0.00/82 0 (Nc8)} 145. Be2 {0.00/68 0 (Af5)} Nb6 {0.00/87 0} 146. Bd1 {0.00/63 0 (Ad3)} Nc8 {0.00/86 0 (Kd8)} 147. Bg4 {0.00/68 0 (Ac2)} Nd6 {0.00/7 0 (Ne7)} 148. Bf3 {0.00/60 0 (Rd5)} Ne8 {-0.01/2 0 (Nc8)} 149. Bd5 {0.00/64 0 (b6+)} Kb8 {0.00/112 0 (Nd6)} 150. Bf7 {0.00/51 0 (c7+)} Nc7 {0.00/115 0} 151. Bd5 {0.00/58 0 (b6)} Ne8 {0.00/132 0 (Kc8)} 152. Bb3 {0.00/60 0 (c7+)} Kc7 {0.00/119 1} 153. Bf7 {0.00/64 0 (b6+)} Nf6 {0.00/131 0 (Ng7)} 154. Bd5 {0.00/66 0 (Rd4)} Ne8 {0.00/102 0 (Kc8)} 155. Bf3 {0.00/64 0 (Ah1)} Nd6 {0.00/6 0 (Nf6)} 156. Bd5 {0.00/66 0 (b6+)} Nc8 {0.00/8 0 (Ne8)} 157. Bf7 {0.00/69 0 (Ah1)} Kd8 {0.00/6 0 (Nd6)} 158. Be6 {0.00/49 0 (c7+)} Nb6 {0.00/92 0} 159. Bf7 {0.00/62 0 (Rd6)} Kc8 {0.00/99 0 (Kc7)} 160. Kd6 {0.00/50 0 (c7)} Na8 {0.00/116 0} 161. Be6+ {0.00/62 0 (b6)} Kd8 {0.00/117 0} 162. Kc5 {0.00/61 0 (b6)} Nc7 {0.00/79 0} 163. Bg4 {0.00/60 0 (Ab3)} Ke7 {0.00/77 0 (Na8)} 164. Bf3 {0.00/46 0 (Rb4)} Na8 {0.00/117 2 (Kd8)} 165. Kb4 {0.00/53 0 (c7)} Kd8 {0.00/6 0 (Kd6)} 166. Ka5 {0.00/46 0 (Ag4)} Kc7 {0.00/55 0} 167. Ka6 {0.00/56 0 (Ag4)} Kb8 {0.00/4 0} 168. Ka5 {0.00/51 0} Nc7 {0.00/42 0 (Nb6)} 169. Bg2 {0.00/43 0 (Rb4)} Ne8 {0.00/6 0 (Na8)} 170. Bf1 {0.00/41 0 (Ad5)} Kc8 {0.00/6 0 (Nc7)} 171. Be2 {0.00/32 0 (Ah3+)} Nd6 {0.00/7 0 (Kb8)} 172. Ka6 {0.00/31 0 (Af3)} Kc7 {0.00/37 0} 173. Bf3 {0.00/43 0} Kb8 {0.00/38 0 (Nc8)} 174. Bd5 {0.00/29 0} Ne8 {0.00/36 0 (Nc8)} 175. Ka5 {0.00/25 0} Nc7 {0.00/36 0 (Nd6)} 176. Bg2 {0.00/27 0 (Af3)} Na8 {0.00/44 0} 177. Kb4 {0.00/53 0 (Ah3)} Kc7 {0.00/5 0} 178. Kc5 {0.00/64 0 (b6+)} a6 {0.00/1 0 (Nb6)} 179. bxa6 {199.99/70 0} Kb8 {6/1 0 (Nb6)} 180. Kd6 {5/0 0} Ka7 {5/1 0} 181. Bf1 {4/1 0} Kb6 {4/1 0} 182. Bc4 {3/0 0} Nc7 {3/1 0} 183. Kd7 {2/1 0} Na8 {2/1 0} 184. Kc8 {1/1 0} Kxc6 {3/1 0} 185. Kb8 {2/1 0} Nb6 {2/1 0} 186. Be6 {1/1 0} Kd6 {1/0 0} 187. a7 {5/1 0} Kc6 {5/1 0} 188. Bf5 {4/0 0} Kc5 {4/1 0} 189. Kb7 {3/0 0} Kb5 {3/1 0} 190. Be4 {2/0 0} Kc5 {2/0 0} 191. Ka6 {1/0 0} Na8 {1/0 0} 192. Bxa8 {2/1 0} Kd6 {2/0 0} 193. Bb7 {1/0 0} Ke5 {1/0 0} 194. a8=Q {6/1 0} Kd4 {6/0 0} 195. Ka5 {5/0 0} Kc3 {5/0 0} 196. Qa7 {4/0 0} Kb2 {4/0 0} 197. Kb4 {3/0 0} Kc2 {3/0 0} 198. Qd4 {2/0 0} Kb1 {2/0 0} 199. Be4+ {1/1 0} Ka2 {1/0 0} 200. Bb1+ {1/1 0} Kxb1 {3/1 0} 201. Qd2 {2/0 0} Ka1 {2/1 0} 202. Ka3 {1/0 0} Kb1 {1/1 0} 203. Qb2# {#1/0 0 (Lag: Av=0.19s, max=0.6s)} 1-0

[DeletedUser190323]

04 March 2023: Leptir Analyzer for Windows 64-Bit, Pixeldrain & Filehorst.de
https://solistachess.jimdosite.com/solista-news/

Leptir Analyzer has the best search of any engine I know. The search is very slow but very accurate. Nevertheless, the tactical strength is the very best (no chess puzzles). It is the best engine in my EN test 2022. It is excellent for analyzing chess theory. On the PlayChess.com server yesterday, I even played with my extremely wide CTG openings book "Solista Universal Extreme"
https://solistachess.jimdosite.com/books/

and still achieved a top rating in auto mode with 8 cores. All games "Leptir Analyzer.pgn" Included.

[Anton101]

Great engine!

[DeletedUser190323]

It's not about that alone. The point is that we play normally in automatic mode, the opponent is assigned by the server. It's extremely difficult to win. Sometimes you don't win a game for a whole day. That applies to all honest players. It makes you even happier when you are successful. You can be 100% sure that players who are ALWAYS over 3000 Elo are cherry pickers or cheaters. You don't even need to be able to count 1 and 1.

[STUDENT_MASTER]

This engine is very strong, i tested it against partzer AI the engine that had been harassing other engines in my test. Leptir 280223 won. Despite their difference in development versions both engines r good.
Thank you for ur interesting n strong engines solista
Also hope the moder of partzer AI updates

[LoginTest]

Hi Student!

Come playing with it on Lichess.org with BanksiaGui ALL FREE... You can challenge ProteusSF, Mate-AI, caissa-x, Stockfish and a lot of very strong opponents

viewtopic.php?t=132

[STUDENT_MASTER]

It seems ur account don't accept automatically, they reject a challenge