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Icarus 1.0.0 wins Swiss Alpha Challenger - edition 05/2026, 24-30.05.2026

 


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  ðŸ–¬ 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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