The Swiss Alpha Challenger features 82 chess engines competing over 11 rounds using the Swiss system. As the final qualifier for the CEDR Chess Engine League, the tournament was deservedly won by Icarus 1.0.0. Meanwhile, the top six finishers advance to Qualifying Group B.
You can find more information about the CEDR Chess Engine League on the dedicated website - LEAGUE.
CEDR 871.259 games download (01.05.2026)
💾 Tournament download with 451 games
💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB 🖬 GUI - Aquarium
#chessenginesdiary Country - Poland, City - Malbork 🕓 Time 3'+3"
| P | Engine | CEDR | Score | (Tie) | Perf Chg | +/-/= |
|---|---|---|---|---|---|---|
| 1: | Icarus 1.0.0 | 2400 | 8.5 / 11 | 80.0 | 2642 +35 | (+6 -0 =5) |
| 2: | Bread 3.1.0 | 2400 | 8.0 / 11 | 77.0 | 2628 +34 | (+5 -0 =6) |
| 3: | Hypersion 3.1 | 2400 | 8.0 / 11 | 76.5 | 2723 +47 | (+6 -1 =4) |
| 4: | Maestro Chess 1.2.1 JA | 2400 | 8.0 / 11 | 71.0 | 2659 +39 | (+7 -2 =2) |
| 5: | Laser 1.8 beta JA | 3270 | 8.0 / 11 | 69.5 | 3132 -15 | (+7 -2 =2) |
| 6: | Chessnix 1.4 | 2400 | 7.5 / 11 | 75.5 | 2533 +20 | (+5 -1 =5) |
| 7: | Stallion GB Edition | 2400 | 7.5 / 11 | 75.0 | 2650 +37 | (+5 -1 =5) |
| 8: | Weiawaga 6.0.0 | 2400 | 7.5 / 11 | 75.0 | 2596 +30 | (+6 -2 =3) |
| 9: | Eleanor 4.1 | 2400 | 7.5 / 11 | 73.0 | 2564 +25 | (+6 -2 =3) |
| 10: | Quirky 2.1 JA | 2400 | 7.5 / 11 | 70.0 | 2681 +42 | (+6 -2 =3) |
| 11: | Gargantua 2.1 | 3126 | 7.5 / 11 | 68.0 | 2983 -18 | (+5 -1 =5) |
| 12: | Lunar 0.4.0 | 2400 | 7.0 / 11 | 77.0 | 2598 +31 | (+4 -1 =6) |
| 13: | Myrddin 0.95 JA | 2629 | 7.0 / 11 | 76.5 | 2700 +10 | (+5 -2 =4) |
| 14: | Solo 2.1.0 JA | 2400 | 7.0 / 11 | 71.5 | 2567 +25 | (+6 -3 =2) |
| 15: | Maelstrom 3.3.0 | 3322 | 7.0 / 11 | 69.0 | 3074 -28 | (+6 -3 =2) |
| 16: | Perseus 1.1 JA | 2400 | 7.0 / 11 | 67.5 | 2644 +37 | (+4 -1 =6) |
| 17: | Bitbit 1.6 | 2400 | 7.0 / 11 | 67.0 | 2598 +31 | (+5 -2 =4) |
| 18: | Dog 4.10 | 2400 | 7.0 / 11 | 66.5 | 2553 +24 | (+5 -2 =4) |
| 19: | Beef 0.3.6 JA | 2400 | 7.0 / 11 | 64.0 | 2565 +25 | (+7 -4 =0) |
| 20: | ChessBrainVB 4.10 | 3203 | 7.0 / 11 | 62.5 | 3017 -23 | (+6 -3 =2) |
| 21: | Pea 8.0 | 2400 | 6.5 / 11 | 67.5 | 2751 +48 | (+4 -2 =5) |
| 22: | Lozza 10 | 2847 | 6.5 / 11 | 66.5 | 2657 -25 | (+6 -4 =1) |
| 23: | OliThink 5.11.9 JA | 2845 | 6.5 / 11 | 66.0 | 2661 -24 | (+5 -3 =3) |
| 24: | Wize 1.0 NNUE | 3014 | 6.5 / 11 | 64.5 | 2790 -29 | (+6 -4 =1) |
| 25: | Demolito 2025-12-16 | 3239 | 6.5 / 11 | 62.0 | 2986 -31 | (+5 -3 =3) |
| 26: | Rusty Rival 1.0.43 | 2400 | 6.5 / 11 | 59.5 | 2614 +32 | (+5 -3 =3) |
| 27: | Invictus r391 JA | 2793 | 6.0 / 11 | 70.5 | 2721 -11 | (+4 -3 =4) |
| 28: | Bit-Genie 9.24 JA | 3051 | 6.0 / 11 | 70.5 | 2921 -19 | (+5 -4 =2) |
| 29: | Publius 1.2 JA | 2400 | 6.0 / 11 | 68.5 | 2574 +26 | (+5 -4 =2) |
| 30: | DanaSah 9.1 JA | 3248 | 6.0 / 11 | 67.0 | 2947 -37 | (+4 -3 =4) |
| 31: | Chess-3 4.0 | 2400 | 6.0 / 11 | 66.5 | 2488 +14 | (+5 -4 =2) |
| 32: | Revolver 2.0 JA | 2400 | 6.0 / 11 | 65.5 | 2486 +13 | (+5 -4 =2) |
| 33: | Admete 1.8.0 | 2643 | 6.0 / 11 | 63.0 | 2673 +4 | (+5 -4 =2) |
| 34: | Pounce 3.0.0 | 2400 | 6.0 / 11 | 62.5 | 2626 +33 | (+5 -4 =2) |
| 35: | Ratsu 2.0.0 | 2400 | 6.0 / 11 | 59.5 | 2585 +28 | (+5 -4 =2) |
| 36: | Lux 5.0 | 2675 | 6.0 / 11 | 57.5 | 2513 -23 | (+6 -5 =0) |
| 37: | Fatalii 0.10.1 | 2385 | 6.0 / 11 | 52.5 | 2533 +23 | (+6 -5 =0) |
| 38: | Gecko 0.35 | 2400 | 5.5 / 11 | 67.0 | 2615 +31 | (+4 -4 =3) |
| 39: | Truncator 1.0 | 2400 | 5.5 / 11 | 67.0 | 2622 +32 | (+3 -3 =5) |
| 40: | Kobra 2.1 | 2290 | 5.5 / 11 | 66.0 | 2485 +29 | (+4 -4 =3) |
| 41: | Chal 1.4.1 | 2400 | 5.5 / 11 | 62.5 | 2483 +13 | (+4 -4 =3) |
| 42: | 4ku 5.1 | 3096 | 5.5 / 11 | 62.0 | 2783 -41 | (+5 -5 =1) |
| 43: | KnightX 4.9 | 2906 | 5.5 / 11 | 59.0 | 2624 -37 | (+5 -5 =1) |
| 44: | Pluto 1.0.1 | 2400 | 5.5 / 11 | 57.0 | 2547 +22 | (+4 -4 =3) |
| 45: | Drosophila 1.6 JA | 2791 | 5.5 / 11 | 56.5 | 2498 -39 | (+5 -5 =1) |
| 46: | Kreveta 2.3.1 | 2400 | 5.5 / 11 | 56.0 | 2527 +20 | (+4 -4 =3) |
| 47: | Throne 0.2 | 2400 | 5.0 / 11 | 67.5 | 2484 +13 | (+3 -4 =4) |
| 48: | Schneckbert 3 JA | 2400 | 5.0 / 11 | 65.0 | 2460 +10 | (+4 -5 =2) |
| 49: | MadChess 3.3 | 2822 | 5.0 / 11 | 62.5 | 2552 -39 | (+4 -5 =2) |
| 50: | Seawall 20250322 JA | 2960 | 5.0 / 11 | 62.5 | 2617 -45 | (+4 -5 =2) |
| 51: | Cheese 3.3.0 JA | 3081 | 5.0 / 11 | 62.0 | 2766 -43 | (+4 -5 =2) |
| 52: | Byte-knight 4.0.0 | 2400 | 5.0 / 11 | 61.5 | 2554 +22 | (+3 -4 =4) |
| 53: | Bobcat 8.0 JA | 2782 | 5.0 / 11 | 61.0 | 2590 -29 | (+3 -4 =4) |
| 54: | Turbulence 0.0.8 JA | 2400 | 5.0 / 11 | 58.5 | 2536 +20 | (+5 -6 =0) |
| 55: | Viking R4 | 2400 | 5.0 / 11 | 57.0 | 2548 +21 | (+5 -6 =0) |
| 56: | Soomi V1.2.0B | 2400 | 5.0 / 11 | 56.0 | 2484 +13 | (+5 -6 =0) |
| 57: | Basilisk 1.2.2 | 2400 | 5.0 / 11 | 55.5 | 2465 +10 | (+5 -6 =0) |
| 58: | Sentinel 2.0 JA | 2400 | 5.0 / 11 | 54.5 | 2384 -2 | (+4 -5 =2) |
| 59: | Thrawn 2.2 JA | 2415 | 4.5 / 11 | 60.0 | 2401 -1 | (+2 -4 =5) |
| 60: | Tomcat 1.0 JA | 2400 | 4.5 / 11 | 59.5 | 2415 +2 | (+4 -6 =1) |
| 61: | JackyChess 25.12 JA | 2400 | 4.5 / 11 | 59.0 | 2368 -4 | (+4 -6 =1) |
| 62: | Dual 0.2.9 | 2400 | 4.5 / 11 | 53.0 | 2368 -4 | (+4 -6 =1) |
| 63: | AllayaChess 1.8 | 2400 | 4.5 / 11 | 50.5 | 2471 +11 | (+4 -6 =1) |
| 64: | Hynobius 0.3.0 beta | 2400 | 4.5 / 11 | 50.0 | 2436 +6 | (+4 -6 =1) |
| 65: | Hydra 1.1.1 | 2400 | 4.5 / 11 | 49.0 | 2430 +4 | (+4 -6 =1) |
| 66: | K2 1.0 JA | 2624 | 4.0 / 11 | 59.0 | 2340 -42 | (+4 -7 =0) |
| 67: | Squid 0.3.1 | 2400 | 4.0 / 11 | 57.0 | 2329 -10 | (+4 -7 =0) |
| 68: | Seagull 1.0 JA | 2400 | 4.0 / 11 | 56.5 | 2382 -2 | (+4 -7 =0) |
| 69: | Whitespine 1.4.0 | 2400 | 4.0 / 11 | 50.5 | 2393 -1 | (+4 -7 =0) |
| 70: | Radiance 4.4 | 2400 | 4.0 / 11 | 49.0 | 2410 +2 | (+3 -6 =2) |
| 71: | BikJump 3.1 | 2400 | 4.0 / 11 | 47.0 | 2431 +4 | (+4 -7 =0) |
| 72: | Rudim 2.1.3 | 2400 | 4.0 / 11 | 46.0 | 2483 +12 | (+4 -7 =0) |
| 73: | PureChess.1.1.0 | 2400 | 4.0 / 11 | 45.5 | 2386 -1 | (+4 -7 =0) |
| 74: | Beast 3.3.3 | 2400 | 4.0 / 11 | 42.0 | 2348 -8 | (+4 -7 =0) |
| 75: | Nyxptr 0.0.6 | 2400 | 4.0 / 11 | 38.0 | 2402 +1 | (+4 -7 =0) |
| 76: | Eggnog 6 dev-1cc JA | 2400 | 3.5 / 11 | 51.5 | 2286 -17 | (+3 -7 =1) |
| 77: | Tofiks 1.5.0 | 2256 | 3.0 / 11 | 46.5 | 2298 +6 | (+3 -8 =0) |
| 78: | Barbarossa 0.7.0 | 2608 | 3.0 / 11 | 40.0 | 2387 -33 | (+3 -8 =0) |
| 79: | Clovis III | 2885 | 3.0 / 11 | 36.5 | 2453 -61 | (+3 -8 =0) |
| 80: | Ippolit 032324 | 3122 | 2.0 / 11 | 40.0 | 2532 -77 | (+2 -9 =0) |
| 81: | ShakeyBot 1.0.0 | 2400 | 2.0 / 11 | 39.0 | 2274 -14 | (+2 -9 =0) |
| 82: | Colossus 2025b | 2908 | 0.0 / 11 | 38.0 | 1843 -91 | (+0 -11 =0) |
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