Chess Engines Diary

  Which engine is better, the Fritz 21 or the Fritz 20? Here are the results of the 24-game match. The "new" Fritz 21 engine won by a narrow margin of 12.5-11.5. CEDR 885.750 games download (01.06.2026) 💾 Tournament download with 24 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Fritz 21 #chessenginesdiary Country - Poland, City - Malbork   🕓 Time 3'+3" P Engine Score (Tie) +/-/= 1: Fritz 21 12.5 / 24 143.75 (+1 -0 =23) 2: Fritz 20 11.5 / 24 143.75 (+0 -1 =23)

  Needless to say, Fritz 20 absolutely crushed Strong Malt 1.0 . A final score of 21.5–2.5 says it all. CEDR   855.782 games download   (01.04.2026) 💾  Tournament  download with 24 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Fritz 20 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engine Score ***** +/-/= 1: Fritz 20 21.5 / 24 111==11=111111=1=1111111 (+19 -0 =5) 2: Strong Malt 1.0 2.5 / 24 000==00=000000=0=0000000 (+0 -19 =5)

  A one-sided match. Fritz 20 crushed the Alexander 8.3 chess engine, winning 10 games without a single defeat. CEDR   855.782 games download   (01.04.2026) 💾  Tournament download with 24 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Fritz 20 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engine Score (Tie) +/-/= 1: Fritz 20 17.0 / 24 119.00 (+10 -0 =14) 2: Alexander 8.3 7.0 / 24 119.00 (+0 -10 =14)

  YuliGM 2026 secured a hard-fought victory over Fritz 20 in their recent encounter. Out of 24 games, 21 ended in draws, while YuliGM clinched the match by winning two games and losing only one. CEDR   837.643 games download   (01.03.2026) 💾  Tournament  download with 24 games 💻 HP ENVY i5-8250U 8GB RAM  🖬 GUI - Banksia #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engines Score (Tie) +/-/= 1: YuliGM 2026 12.5 / 24 143.75 (+2 -1 =21) 2: Fritz 20 11.5 / 24 143.75 (+1 -2 =21)

In yet another match testing the latest version of this powerful engine, Fritz 20 proved superior to Halogen 16.2.0 . The latter struggled, losing two games while managing 28 draws. CEDR   820.396 games download   (01.02.2026) 💾  Tournament  download with 30 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Fritz 20 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3"   P Engine Score (Tie) ***** +/-/= 1: Fritz 20 16.0 / 30 224.00 =1=============1============== (+2 -0 =28) 2: Halogen 16.2.0 14.0 / 30 224.00 =0=============0============== (+0 -2 =28)

  Description of this chess game according to AI This game is a fascinating study in "squeezing water from a stone." Halogen 15.33.3 demonstrated a masterclass in exploiting structural passivity, eventually breaking down Fritz 20 in a marathon 102-move battle. Here is the analytical breakdown of the match: 1. The Opening: The Berlin Wall (C67) The game followed a very solid, symmetrical line of the Ruy Lopez. The move 5. Re1 (instead of the main-line 5. d4 ) is a strategic choice often used by engines to reach a controlled, low-variance position where they can outmaneuver the opponent in the long run. Key Transition: After the mass trades around move 18 ( 18. Bxd6 ), Black was left with doubled d-pawns. While objectively a draw, this gave White a clear, singular target to play against for the next 80 moves. 2. The Midgame: Strategic Tension Halogen played with a high degree of "engine aggression"—not attacking the King directly, but clamping down on space. The A...