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Bonifratz ( Bonifratz@feddit.de )  to Chess@lemmy.ml · 3 years ago

White to move and win (difficult) - Alexey Troitsky, 1897

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White to move and win (difficult) - Alexey Troitsky, 1897

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Bonifratz ( Bonifratz@feddit.de )  to Chess@lemmy.ml · 3 years ago
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  • SnokenKeekaGuard ( SnokenKeekaGuard@lemmy.dbzer0.com ) 
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    3 years ago

    Bc6 Rb2 Trying to mate on g2 and defending.

    I’m not sure where to go from there, either bg2+ or nf4+

    Either case I can’t find a forced mate in my head atleast

    • Bonifratz ( Bonifratz@feddit.de ) OP
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      3 years ago

      Good start. You don’t have to calculate all the way to mate in that line, White gets an overwhelming advantage.

      But more interestingly: What do you do after Bc6 Rb1+?

      • SnokenKeekaGuard ( SnokenKeekaGuard@lemmy.dbzer0.com ) 
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        3 years ago
        1. Bc6 Rb1+

        2. Ke2 Rxh1

        3. Bg2+ Kxg2

        4. Nf4+ Kg1

        5. Ke1 g2

        6. Ne2

        • Bonifratz ( Bonifratz@feddit.de ) OP
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          3 years ago

          Perfect, you found it!

          • SnokenKeekaGuard ( SnokenKeekaGuard@lemmy.dbzer0.com ) 
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            3 years ago

            No way!

        • wahming ( wahming@monyet.cc ) 
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          3 years ago

          Does it work if black declines to take the queen?

  • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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    3 years ago
    1. Bc6 Rb1+

    2. Ke2 Rxh1

    3.Bg2+ Kxg2

    4.Nf4+ Kg1

    5.Ke1 G2

    6.Ne2#

    Edit K for knight to N

    • apotheotic (she/her) ( apotheotic@beehaw.org ) 
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      3 years ago

      I think it’s meant to be Ke1 G2 as Ne1 is an illegal move but that’s just a notation issue

      • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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        3 years ago

        Yeah it was very late i was meant to be asleep not playing chess puzzles knight starts with a k haha

    • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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      3 years ago

      It appears I’m an idiot too

      I’m very new to chess annotation and i keep using k for knight and king.

    • wahming ( wahming@monyet.cc ) 
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      3 years ago

      It seems to be open ended if black doesn’t take queen, though

      • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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        3 years ago

        Bishop moves to g2 checkmate of it doesn’t check the king.

        If it does then the king walks back towards the rook. Until it takes it or the rook doesn’t check the king ending the game

        • wahming ( wahming@monyet.cc ) 
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          3 years ago

          What about Rb2, Kd3, Pg2?

          • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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            3 years ago

            It gets all very messy if black doesn’t take the bate it seems

            • Bonifratz ( Bonifratz@feddit.de ) OP
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              3 years ago

              In what position? After 1. Bc6 Rb1+ 2. Ke2 Rb2+ 3. Kd3 Black doesn’t have anything but spite checks. And if …g2, White can now safely go Qc1 with quick checkmate to follow via Qh6+ (since g2 is covered by the bishop).

        • wahming ( wahming@monyet.cc ) 
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          3 years ago

          deleted by creator

      • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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        3 years ago

        What’s interesting is if black moves to Rf4 and ignores the queen i see how it gets very open ended

    • Bonifratz ( Bonifratz@feddit.de ) OP
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      3 years ago

      Nicely done! You solved the main (study) line. There’s other lines where Black actually holds out longer, but they’re much simpler to calculate.

      • wahming ( wahming@monyet.cc ) 
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        3 years ago

        What happens if black declines the queen? Too lazy to calculate it out at this point

        • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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          3 years ago

          Anything it seems. But I’m probably missing a lot

    • Taako_Tuesday ( Taako_Tuesday@lemmy.ca ) 
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      3 years ago

      After 4. Nf4+, wouldn’t it be better for the king to go to f3? Or am I overlooking something obvious

      Edit: answered my own question, white king covers f3 after moving to e2, forgot about that

  • Dsklnsadog ( Dsklnsadog@lemmy.dbzer0.com ) 
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    3 years ago

    I need the reddit bot to try it online.

    • Bonifratz ( Bonifratz@feddit.de ) OP
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      3 years ago

      My bad, next time I’ll provide a link right away. Here you go: https://lichess.org/analysis/4B3/8/6N1/5p2/1r4p1/6pk/7b/4K2Q_w_-_-_0_1?color=white

      • Dsklnsadog ( Dsklnsadog@lemmy.dbzer0.com ) 
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        3 years ago

        Thanks

  • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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    3 years ago

    King E1 to F1

    • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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      3 years ago

      No that’s no good either, then castle comes to check

      • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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        3 years ago

        Hang on im still onto it.

        New plan

        Bc6

        Rb1 checking king

        Kd2

        Rb2 checking King

        Kc1

        Rook must leave or be taken. Anywhere doesnt matter.

        Qg2 checkmate

        • Bonifratz ( Bonifratz@feddit.de ) OP
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          3 years ago

          Right, but what about 1. Bc6 Rb1+ 2. Kd2 Rxh1?

          • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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            3 years ago

            Shit. Leave it with me

            • Squareeyed ( Squareeyed@aussie.zone ) 
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              3 years ago

              deleted by creator

            • Squareeyed ( Squareeyed@aussie.zone ) 
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              3 years ago

              Bc6, Rb1, Ke2, RxH1, BxH1, Pg2, Nf4, Kg3/h4, Nxg2. That’s as far as I’ve gotten

              • wahming ( wahming@monyet.cc ) 
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                3 years ago

                Once white loses their queen, a mate is impossible

                • Squareeyed ( Squareeyed@aussie.zone ) 
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                  Got a modification on it. I think it works…

                  Bc6, Rb1, Ke2, Rxh1, Bg2+,Kxg2,Nf4+,Kg1,Ke1,Pg2,Ke2#

                  ? I dunno if my logic is right, but pretty sure that might be it, been fiddling moves for a while…

                • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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                  3 years ago

                  Nah thats not true

          • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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            3 years ago
            1. Bc6 Rb1+

            2. Ke2 Rxh1

            3.Bg2+ Kxg2

            4.NF4+ Kg1

            5.Ne1 G2

            Hows that

            6.Ne2#

            Edit K for knight to N

      • fosforus ( fosforus@sopuli.xyz ) deleted by creator
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        deleted by creator

        • wahming ( wahming@monyet.cc ) 
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          3 years ago

          How does horse take castle? Castle is on b1, free queen

          • fosforus ( fosforus@sopuli.xyz ) deleted by creator
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            deleted by creator

            • wahming ( wahming@monyet.cc ) 
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              3 years ago

              Nvm, turns out that free queen is actually the bait for a checkmate

    • sepiroth154 ( sepiroth154@feddit.nl ) 
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      deleted by creator

      • Aussiemandeus ( Aussiemandeus@aussie.zone ) 
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        3 years ago

        What about the Queen?

  • wahming ( wahming@monyet.cc ) 
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    Does it involve Ke2, Pg2, Qe1? Ending with Qc1, Qh6

    Edit nvm I’m dumb

    • Bonifratz ( Bonifratz@feddit.de ) OP
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      Unfortunately no. After 1. Ke2 g2 2. Qe1 Black has a simple way to win the queen, and after 2. Qc1 Black can at at the very least promote the pawn and there will never be a checkmate for White.

  • wahming ( wahming@monyet.cc ) 
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    deleted by creator

  • gabbagabbahey ( gabbagabbahey@lemm.ee ) 
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    3 years ago

    Chest

  • ☭SaltyIcetea☭  ( SaltyIceteaMaker@lemmy.ml ) 
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    deleted by creator

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