Stockfish 17 simply DOESN'T Understand Fortresses! - Leela C Zero's Immortal 120 Move Fortress!!!

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  • Опубліковано 23 гру 2024

КОМЕНТАРІ • 33

  • @blijebij
    @blijebij 4 дні тому +7

    I would love to see Leela play this with the white pieces! That would be awsome! I love Ai chess as its genious level, so dynamic&elegant. Thanks Josip, fantastic explaining all moves of both sides! :)

  • @naoufal5490
    @naoufal5490 4 дні тому +12

    I still haven't seen the games, but Game 19, stockfish also made a pile fortress that leela didn't quite understand.

  • @michaelmassaro4375
    @michaelmassaro4375 4 дні тому +3

    Fantastic play from Leela after the Queen exchange Strong fortress Stockfish was bugging to find an opening where there wasn’t any . Stockfish does better when it gains advantage early Great game thanks Jozarov

  • @Ratva666
    @Ratva666 4 дні тому +8

    It is the same position from the day before yesterday that she played. Exactly the same. Immortal Defense.

    • @eliasseoane7663
      @eliasseoane7663 4 дні тому +3

      it's different

    • @michaelmassaro4375
      @michaelmassaro4375 4 дні тому +2

      There was a game couple days ago with the fortress forcing a draw I’ll have to wait to see endgame

    • @michaelmassaro4375
      @michaelmassaro4375 4 дні тому +3

      Right crazy endgame that’s nuts slightly different but just as effective

  • @EnriqueBecerra-x7s
    @EnriqueBecerra-x7s 3 дні тому +1

    Brutal tablas, gracias jozarov, saludos

  • @thwaib100
    @thwaib100 4 дні тому +5

    Amazing by leela , amazing by jozarov

  • @davidschneide5422
    @davidschneide5422 3 дні тому +1

    From Fischer’s “sac, sac, mate” to Leela’s “sac, sac, sac, stalemate”

  • @FevziKonuk
    @FevziKonuk 4 дні тому +4

    I saw this live..such a beautiful game

  • @veritasdivina
    @veritasdivina 4 дні тому +7

    Learning to build a fortress as part of your strategy or recognize it when defending is not something a relatively small net like Stockfish's NNUE net can do. And because Stockfish is pure CPU engine, increasing the network size comes at a cost of alpha/beta search speed. Stockfish 17.1 evaluates "only" 40 Mn/s, whereas pure classical engine with no NN can do it 10 times faster on tcec hardware. It remains to be seen if Stockfish also starts utilizing GPU in its evaluation (where available) in the future.

    • @michaelmassaro4375
      @michaelmassaro4375 4 дні тому +2

      That’s a lot of fancy jargon

    • @veritasdivina
      @veritasdivina 3 дні тому

      @@michaelmassaro4375 Sorry, been a software engineer for 30 years now. It comes naturally. It's easy to forget how weird it sounds to regular people. I'm so used to talking to other software engineers.

    • @oscarhernandez2779
      @oscarhernandez2779 3 дні тому

      Whats “NN”?

    • @oscarhernandez2779
      @oscarhernandez2779 3 дні тому

      And whats “only 40Mn/s”?

    • @oscarhernandez2779
      @oscarhernandez2779 3 дні тому

      Since you bring it up, Ive been wondering myself about this. Have you heard of Alphazero 19, and if so, what are your thoughts on it and how it compared to Stockfish 17?

  • @joseraulcapablanca8564
    @joseraulcapablanca8564 4 дні тому +3

    A great strategy with an evolving fortress. I would usually call a queen for rook knight and two pawns a dynamic imbalance and not a sacrifice. But this was done to create a completely static position. Thanks Josip.

    • @michaelmassaro4375
      @michaelmassaro4375 4 дні тому +2

      Rook Bishop 2 pawns = 10 pts Queen = 10 pts Leela gained a bishop rook and two pawns not a knight etc but ok ✅ 😊

    • @joseraulcapablanca8564
      @joseraulcapablanca8564 4 дні тому +2

      @ yeah you are right but the principle is the same. I would be a dynamic imbalance or dynamic balance depending on viewpoint, but Leela took all dynamics out of the position.

    • @XEJTEP
      @XEJTEP 4 дні тому +2

      ​@@michaelmassaro4375 Queen worth is 9 points .

  • @andream171
    @andream171 4 дні тому +3

    Really spectacular! It would be a blast if you create a playlist that contains every fortress game that you covered so we can study from it! 💪😊

  • @wombolino2343
    @wombolino2343 3 дні тому +1

    As a beginner, i wondered for most of this recap, why the black b6 pawn was invulnerable, despite white being seemingly able to attack it twice (with Queen+Bishop) while black could only sustain one defender (the knight)...

  • @Mentoritori-h5u
    @Mentoritori-h5u 4 дні тому +3

    Amazing défense for lela

  • @raylopez99
    @raylopez99 4 дні тому +2

    What?? Another Furious Rook?!!

  • @Ratva666
    @Ratva666 4 дні тому +5

    That is MY GIRL. LeelaCzero.😍😍😍😍😍😍🥰🥰🥰😇😇😇😇

  • @alpal2002
    @alpal2002 2 дні тому

    The Black Knight on c4 became too powerful .
    I think a human would have swapped it for a Rook and tried to get some pawns too for the trade.

  • @anonym5160
    @anonym5160 4 дні тому +5

    The dumb fish

    • @oscarhernandez2779
      @oscarhernandez2779 3 дні тому

      If you cant beat it then that makes you even dumber than a fish! 🤣