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Alekhine's Defense O'Sullivan Gambit [TRAPS For Black]

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  • เผยแพร่เมื่อ 15 ส.ค. 2024
  • GM Igor Smirnov's B'day Special
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    📥 Download the PGN of this O'Sullivan Gambit chess opening from this blog-post - chess-teacher....
    In this video lesson, GM Igor Smirnov shares with you one of the trickiest chess openings for Black, which is universal as it works against both 1.e4 and 1.d4 by White.
    It’s called the O'Sullivan Gambit from the Alekhine’s Defense which happens after the first moves: 1.e4 Nf6 2.e5 Nd5 3.d4 b5. It can also be transposed if White plays 1.d4 and then 1...b5 2.e4 Nf6 3.e5 Nd5.
    This gambit is so tricky that White loses in just 6-8 moves in the most common variations. It sets a trap almost every move and even top-rated players fall for these traps; yes, it works even against 2500+ players!
    ▬▬▬▬▬▬
    ► Chapters
    00:00 Aggressive Chess Gambit for Black
    00:27 Universal Chess Opening Against 1.e4 & 1.d4
    01:43 Line-1: If White plays 5.dxc5
    03:42 Transposition from 1.d4
    04:44 Line-2: If White plays 5.c3
    05:23 Stats: Even 2500+ ELO fall for these TRAPS
    06:07 Line-3: If White plays 5.c4
    07:38 Proof: 92% Win Rate for Black
    08:25 Line-4: If White plays 5.Bc4, correct response
    10:19 White's stronger move to watch out for
    10:57 Black's aggressive, riskier approach
    12:08 Igor's cat likes this aggressive approach
    📗 Free chess courses - chess-teacher....
    #GMSmirnov #ChessGambit #OpeningTraps #ChessTraps

ความคิดเห็น • 155

  • @GMIgorSmirnov
    @GMIgorSmirnov  ปีที่แล้ว +12

    🎁Only 24 hours LEFT - GM Igor Smirnov's B'day Special, get 64% OFF on all courses till 2nd Nov - online.chess-teacher.com/

    • @jimcoia2525
      @jimcoia2525 ปีที่แล้ว

      Belated b/day wishes

  • @v1das007
    @v1das007 ปีที่แล้ว +34

    This channel has quickly become my favorite chess channel on youtube. Very instructive and no nonsense. Great work.

  • @minshweyi6468
    @minshweyi6468 ปีที่แล้ว +3

    Hey, happy birthday, bro!!! I am new to Chess. Guess what. Within a month, your strategies and knowledge has helped me a lot to win some of my friends who have been playing it for years! I can't thank you enough for your well-explained videos. They're totally precious. Wishing you the best birthday ever! Cheers to playing Chess!🍻

  • @novandi0411
    @novandi0411 ปีที่แล้ว +4

    Many Happy Returns.. Thanks for sharing all your Chess knowledge.. this means a lot to us as beginners as well as advanced players.. Stay blessed 🙏🏻 Love from Indonesia

  • @0b1b7a3886e1df44
    @0b1b7a3886e1df44 ปีที่แล้ว +1

    Happy Bday!! Woot! Love your channel. Blessings on you today.

  • @ivanafterfive
    @ivanafterfive ปีที่แล้ว +6

    I could see this winning a lot in blitz especially. And Happy Birthday!

  • @GMIgorSmirnov
    @GMIgorSmirnov  ปีที่แล้ว +4

    ► Chapters
    00:00 Aggressive Chess Gambit for Black
    00:27 Universal Chess Opening Against 1.e4 & 1.d4
    01:43 Line-1: If White plays 5.dxc5
    03:42 Transposition from 1.d4
    04:44 Line-2: If White plays 5.c3
    05:23 Stats: Even 2500+ ELO fall for these TRAPS
    06:07 Line-3: If White plays 5.c4
    07:38 Proof: 92% Win Rate for Black
    08:25 Line-4: If White plays 5.Bc4, correct response
    10:19 White's stronger move to watch out for
    10:57 Black's aggressive, riskier approach
    12:08 Igor's cat likes this aggressive approach

    • @HubertK28
      @HubertK28 ปีที่แล้ว

      Unfortunately, the most common move is 3.c4, not 3.d4

  • @tonyomar7150
    @tonyomar7150 ปีที่แล้ว

    OMG!! i studied this opening this morning and started playing this afternoon and i’m getting win after win. i moved from 1580 and i’m now at 1630 and still playing
    HAPPY BELATED BDAY GM IGOR

  • @MyBiPolarBearMax
    @MyBiPolarBearMax ปีที่แล้ว +3

    Im so glad i found your channel. I play very similarly to your style (albeit many ELO lower 😂) and even though your channel deserves to be bigger, its not yet so all of these tactics become successful for me!

    • @sharpvidtube
      @sharpvidtube ปีที่แล้ว +1

      Something else I like, at my level, I know if someone finds all the right moves, they're most likely cheating😂

    • @GamingChair9482
      @GamingChair9482 ปีที่แล้ว

      @@sharpvidtube I don't even remember the right moves to counter my own opening.

  • @kyleprosper8942
    @kyleprosper8942 ปีที่แล้ว +4

    Black grob opening ! The Borg!

  • @bowenmiller2649
    @bowenmiller2649 หลายเดือนก่อน

    Ha ha ha !!! I agree with the cat!
    Happy birthday!! And many more young man. Keep up the humor, chess can be boring.

  • @Brewermb
    @Brewermb ปีที่แล้ว +1

    I paused the video for about two minutes to see where my cat was!!😄

  • @ameenhussaini2058
    @ameenhussaini2058 ปีที่แล้ว +3

    What if they play knight to C3 and block the check as well as protect the bishop?

    • @boezou
      @boezou ปีที่แล้ว

      I think then your knight can just take c3. And if they then retake your knight, then you take the bishop with your Queen. So then you’re up the exchange a bishop for a pawn.

  • @AkbarPoker
    @AkbarPoker ปีที่แล้ว +1

    I recommend you to use this gambit in a OPEN Classical tournament Igor.

  • @rnandhan9232
    @rnandhan9232 ปีที่แล้ว

    Many more happy returns of the day. God bless you 💐💐💐

  • @douglasscovil3447
    @douglasscovil3447 ปีที่แล้ว +1

    nice defense: unusual, deceptive (looks like alekhine's def at first) and easy to remember.

  • @crashcondo
    @crashcondo ปีที่แล้ว

    Love your vids, watch every one when I get the notification, always good stuff. Bought the course as well, it's great!

  • @arwanpawar3260
    @arwanpawar3260 5 หลายเดือนก่อน

    Thanks for tutorial...go on.

  • @vicclark6275
    @vicclark6275 ปีที่แล้ว +1

    Hi Igor. Love your channel. Question: after black moves the knight to d5, white does not have to respond with d4. They can play c5, chasing the knight again and the whole thing falls apart. How to respond? chrs, Vic

  • @jth137
    @jth137 ปีที่แล้ว +1

    In the line that you talk about at 4:57 where white reinforces the center with c3 and we play cxd4, what do you suggest if our opponent plays Qxd4 instead of cxd4
    I looked at it in the database and it looks like maybe Qc7 followed by bb7 if they play Qxd5? Thoughts?

  • @trailerpark948
    @trailerpark948 ปีที่แล้ว

    very Happy Birthday Igor 🎉🎂

  • @Pankaj15571
    @Pankaj15571 ปีที่แล้ว

    Many happy returns of the day sir !!

  • @user-mp3fj6xt9w
    @user-mp3fj6xt9w ปีที่แล้ว

    Pb5 doesn't necessarily stop Pc4 by white as he says in video. If pxp by black, then simply BxP by white, developing a piece.

  • @indraarunkumar4579
    @indraarunkumar4579 ปีที่แล้ว

    Many many happy returns of the day sir

  • @iancollis5971
    @iancollis5971 ปีที่แล้ว

    Happy birthday Igor, another great video, thanks.

  • @BobChess
    @BobChess ปีที่แล้ว

    I love this gambit, This opening is very useful and trappy. I love you :D

  • @MichaelFischer1949
    @MichaelFischer1949 ปีที่แล้ว +3

    What if instead of White playing 3. d4, White plays 3. c4 threatening the Knight immediately?

    • @Scythe5609
      @Scythe5609 ปีที่แล้ว +1

      if this happens, take whites d4 pawn, baiting taking that knight, and if it is taken, then the same queen trick is allowed

    • @HubertK28
      @HubertK28 ปีที่แล้ว +1

      @@Scythe5609 This doesn't answer the question as @Michael Fischer was referring to 1. e4 Nf6 2. e5 Nd5 3.c4, with 3.c4 being a very popular move.

    • @Aperson-kq7pt
      @Aperson-kq7pt ปีที่แล้ว

      You just have to learn how to play the Alekhine defence.

  • @soupymilk1631
    @soupymilk1631 หลายเดือนก่อน

    What do you do if after c3, cxd4, then Queen recaptures instead of pawn?

  • @idanaviad34
    @idanaviad34 ปีที่แล้ว

    Happy Birthday. Thank you for the great content 🎂

  • @tiagosilva7448
    @tiagosilva7448 ปีที่แล้ว +1

    Nice opening!! Happy birthday

  • @erichholzshu5840
    @erichholzshu5840 3 หลายเดือนก่อน

    Happy Birthday! What's the name of this gambit, again?

  • @stuartmitchell6991
    @stuartmitchell6991 ปีที่แล้ว

    Happy bday. Love your videos. Im going to try this at club tonight. Wish me luck 🤣🤣

  • @brass4235
    @brass4235 ปีที่แล้ว +1

    Very trappy line. With the e4 opening, 1 question I have Is what if white plays 6. Nc3 after 5...Qa5? This still blocks the check and protects whites bishop on b5. Or am I missing something else?

    • @brass4235
      @brass4235 ปีที่แล้ว +1

      Would it be 6... Nd5xNc3 7. bxNc3 .... Qxc3+

  • @Dan_Moller
    @Dan_Moller ปีที่แล้ว +1

    I've been using Russeau for quite a while and it works somewhat well, although there are some nasty downsides. Might I try this one? It seems that white is going to knight out very often instead of pushing forward...

    • @Juleye
      @Juleye ปีที่แล้ว

      I have the same reaction as well with white often knight to c3 which makes this set up not work so well. But I'm also very low rank so that may have an impact as well

  • @ramilparedes9930
    @ramilparedes9930 ปีที่แล้ว

    Happy birthday master.Very helpful

  • @raminmehran1246
    @raminmehran1246 ปีที่แล้ว

    Verty nice, thanka a lot

  • @jaisonlee007
    @jaisonlee007 ปีที่แล้ว +1

    I haven’t got anyone to fall for this yet. They always move their knight out to protect their pawn

  • @kevinbenedetto5281
    @kevinbenedetto5281 ปีที่แล้ว

    So what happens queen takes pawn on d4, instead of bishop takes knight? Any traps there?

  • @davidhansman7190
    @davidhansman7190 ปีที่แล้ว +1

    Stockfish says 76% is the optimal discount on your courses

  • @renatosuter2899
    @renatosuter2899 ปีที่แล้ว

    Happy B-Day Igor 🎉🎉🎉

  • @sluster
    @sluster ปีที่แล้ว

    1600 player so getting opponents in that range - I've tried this twice now and weirdly both times it's been 1.e4-Nf6 2. e5-Nd5 3. Bc4 Not sure how to respond I've played Nb6 and just played chess but curious if that 3rd move breaks the trap or if there are any ways to keep the themes going

  • @19bradley65
    @19bradley65 ปีที่แล้ว

    Igor, what's with the new background? My daughter and I want the cat back!

  • @DexterHaven
    @DexterHaven ปีที่แล้ว

    6:25 if Nc3, white blocks the check and protects the bishop!
    But allows pxN, pxp, Qxp+ threatening the black rook.

  • @stoikdema
    @stoikdema ปีที่แล้ว

    At famous "risky move" where Igor's cat liked it, doesn't the pawn has en passant anyway???

  • @mariannefischer3613
    @mariannefischer3613 ปีที่แล้ว

    These kinds of traps, although a lot of fun, rely on opponent's blunders. Pc3 and Qxd4 give white a fine position.
    Before trying these things, you need a plan for when they fail.

  • @davidbatchelder85
    @davidbatchelder85 ปีที่แล้ว +2

    Pawn could take eponsont and still get the check

    • @ninety_ldn
      @ninety_ldn ปีที่แล้ว +1

      For En passant the black pawn would need to be on the same rank so no this would be possible

    • @MyBiPolarBearMax
      @MyBiPolarBearMax ปีที่แล้ว +3

      Its pronounced “en croissant” 🥐

    • @peter-klausnikolaus4823
      @peter-klausnikolaus4823 ปีที่แล้ว +1

      on peasant

    • @pola_behr
      @pola_behr ปีที่แล้ว

      @@peter-klausnikolaus4823 I was so shook when I heard Hikaru pronounce it like that bro😭

    • @sgtnubbings6501
      @sgtnubbings6501 ปีที่แล้ว

      Black pawn needs to be on c4 not c3 to be able to en passant

  • @FloydMaxwell
    @FloydMaxwell ปีที่แล้ว +1

    After black plays queen to a5, what about white playing knight to c3, protecting the bishop?

    • @bharrisn
      @bharrisn ปีที่แล้ว +1

      Knight takes knight

    • @aleksandrapetkovska5177
      @aleksandrapetkovska5177 ปีที่แล้ว

      You take the knight on c3 with your knight on d5 after they they take back you take the bishop

    • @rehanaslam8519
      @rehanaslam8519 ปีที่แล้ว

      What if white plays knight a3

  • @merlanmedenilla4561
    @merlanmedenilla4561 ปีที่แล้ว

    Happy Birthday IGOR.

  • @JohnS-il1dr
    @JohnS-il1dr ปีที่แล้ว +2

    With the Alekhine white always plays c4 after I play ...Ne4 so I never get the chance to play ...b4 to set the trap

    • @sharpvidtube
      @sharpvidtube ปีที่แล้ว

      I find that with so many traps, they almost always play the wrong move, that avoids it by accident.

    • @REKKnives
      @REKKnives ปีที่แล้ว

      Same here, never get to use this gambit

  • @srichaitanyasaraswatmathspain
    @srichaitanyasaraswatmathspain ปีที่แล้ว

    Thank you Master: the best!!!👏👏👏🎊🎊🎊🎉🎉🎉

  • @Bhavishya.962
    @Bhavishya.962 ปีที่แล้ว

    Thanks For this opening

  • @justanotheryoutubechannel3102
    @justanotheryoutubechannel3102 ปีที่แล้ว

    I bet your cat would totally approve of my "Zeller Ice Queen" (in the blackmar diemer gambit) as the "main line" is about 3 points bad for white, but is a rare line with around 70% chances in every other line. an online troll griped that it's "unsound", parroting the old GM talking point, but any time you're winning 70% or more of your games, the word unsound doesn't apply. gambiteers like risk and i'm so glad i stumbled on this as I was having a hard time trying to find a repertoire against 1.d4 to go with the albin (few gambits) and with indian/benko, but THIS, like the rousseau which this kings gambiteer so wants to get rid of the scandinavian for, looks like just what i need to stop effing stonewalling. i hate pawns in the way even if the stonewall is very playable if you don't mind 50+ move games.
    thanks for sharing, i'm cobbling a book out of this video and lichess right now. the carnage in the MAIN LINES is awesome! i'll put up with 1 in 20 painful losing games for 19 fun ones any day!
    BTW i'm NEVER playing the alekhine! i hate hypermodern everything! this looks better as a 1.d4 repertoire that can't be side stepped

  • @manolitomoralizon2534
    @manolitomoralizon2534 ปีที่แล้ว

    Happy birthday master!!!

  • @guyza123
    @guyza123 ปีที่แล้ว

    On fire!

  • @girijas6573
    @girijas6573 ปีที่แล้ว

    I am thinking white will play knight c3 since there is no defender for black knight which kinda invalidates pawn b5?...not been through the entire video yet

  • @alejandroayalamaldonado2817
    @alejandroayalamaldonado2817 ปีที่แล้ว

    Gracias por la explicaiòn.

  • @saarunaa
    @saarunaa ปีที่แล้ว

    Happy birthday🎁🎉🎂

  • @keithleung8700
    @keithleung8700 ปีที่แล้ว

    What happens after 5 c3 cxd4 6 Qxd4?

  • @user-ok2ur8hs7p
    @user-ok2ur8hs7p 4 หลายเดือนก่อน

    Last gambit does not make any sense, because everyone plays c4 only and almost never D4 and there is no variation presented with c4 move

  • @belmirotancredoculita1831
    @belmirotancredoculita1831 ปีที่แล้ว

    Happy bthday Igor, I wish U all the best & more and more happy years of life & chess!
    Cheers🎉🎉🎉🎉🎉🎂🎂🎂🎂🎂🎂🎂🎂🥂🥂🥂🥂🥂🥂

  • @adampressley6629
    @adampressley6629 ปีที่แล้ว

    happy birthday, nice video

  • @sonipolakian4256
    @sonipolakian4256 4 หลายเดือนก่อน

    Nice video

  • @billburros5343
    @billburros5343 ปีที่แล้ว

    Ive been trying this. When they play d4 i offer the knight pawn. They take it and i go on to win. However, most of the time they play c4 instead.

  • @edzmuda6870
    @edzmuda6870 ปีที่แล้ว +1

    I always get opponents who play 3. C4. How do you handle that?

    • @Aperson-kq7pt
      @Aperson-kq7pt ปีที่แล้ว

      You just have to learn how to play the Alekhine Defence.

  • @jonabdo4796
    @jonabdo4796 ปีที่แล้ว +2

    I keep trying a computer on "Easy" mode and doesn't fall for the trap. I guess I have to try it on a human game. Thanks for the videos by the way. I suck at chess so everything helps

    • @faisaltanveer1967
      @faisaltanveer1967 ปีที่แล้ว

      Yes computer doesn't fall for trap they use 5. C3 and whole plan fails

  • @divyanshujain5809
    @divyanshujain5809 ปีที่แล้ว

    Happy Birthday sir!!

  • @kkagari
    @kkagari ปีที่แล้ว

    happy birthday you handsome beast!

  • @boredlake
    @boredlake ปีที่แล้ว

    What if white does 4. Qg4?

  • @trailerpark948
    @trailerpark948 ปีที่แล้ว

    how can I save this clip?

  • @rehanaslam8519
    @rehanaslam8519 ปีที่แล้ว +1

    At 3:04 what if white plays nighta3 to attack the black queens as well ?

    • @sgtnubbings6501
      @sgtnubbings6501 ปีที่แล้ว

      I'd guess you just drop your Queen back to a6, still protecting Bishop so it maintains the threat on White's Queen though from there cannot be attacked again by any pieces, forcing their Queen to move enabling the g2 pawn/h1 Rook skewer, and still able to move in to f1.

    • @rehanaslam8519
      @rehanaslam8519 ปีที่แล้ว

      Queen a6 ????

  • @phidybee3334
    @phidybee3334 ปีที่แล้ว

    Count me in, il.ley u know how I get on, thanks

  • @CB-jq7fe
    @CB-jq7fe ปีที่แล้ว

    🎉🎊 Belated B-day!

  • @joanmarino3179
    @joanmarino3179 ปีที่แล้ว

    Happy Birthday

  • @jakekashh
    @jakekashh ปีที่แล้ว

    Happy Birthday!!

  • @celing0624
    @celing0624 ปีที่แล้ว

    Belated happy birthday Igor.

  • @Biblogigonogogga
    @Biblogigonogogga ปีที่แล้ว

    Nah wait wut, this is too good . I will share this chhannel with all of my friends who play chess damn this is so good lol I won 3matches with black💀

  • @nareshvarma1227
    @nareshvarma1227 ปีที่แล้ว

    Its really great steps . 90% winning chances.

  • @percivalrc
    @percivalrc ปีที่แล้ว

    Happy Birthday!

  • @fkassis76
    @fkassis76 ปีที่แล้ว

    Happy birthday

  • @petkopetkov9385
    @petkopetkov9385 ปีที่แล้ว

    1e4 Kf6 2 e5 Kd5 3c4 and than what (no trap for black now)

  • @shobham2941
    @shobham2941 ปีที่แล้ว

    Happy Birthday 🎉🥳

  • @idkidkk5011
    @idkidkk5011 ปีที่แล้ว

    100 % gonna try this. Happy birthday

    • @julesrevillon960
      @julesrevillon960 ปีที่แล้ว

      Don't try it ur wasting time and lp caus it can only be played as black and never happen irl

  • @rubberduckie5518
    @rubberduckie5518 ปีที่แล้ว

    It's a cool trap but I feel even weak players can sense it's a bad move (the bishop takes the free pawn). Common knowledge that your bishop will just get kicked next move (at minimum), and potential for complications early. Maybe blitz chess this could be a common mistake tho.

  • @INFJ-ThaneTr
    @INFJ-ThaneTr ปีที่แล้ว

    I never see players push the king pawn to attack the knight on f6 but rather defend their pawn with their own knight 🤷

  • @booni5114
    @booni5114 ปีที่แล้ว

    Happy birthday 🎉

  • @edwinpompert1227
    @edwinpompert1227 ปีที่แล้ว

    5. Pc3! free pawn

  • @JavidIran_7
    @JavidIran_7 ปีที่แล้ว

    Happy birthday 🎈🎈🎈

  • @D_M4N8
    @D_M4N8 ปีที่แล้ว

    I just end up getting chased down by pawns 😑

  • @ede2225
    @ede2225 2 หลายเดือนก่อน

    Love it--except that my opponents never take the pawn on B5. Anyone else notice this? . Blah.

  • @cameront3768
    @cameront3768 ปีที่แล้ว +3

    I am between 1200-1300 in 5 minute blitz, I tried all these openings I lost every one.😂 I think they have studied your video too. 🤣😆😭

  • @divided_and_conquered1854
    @divided_and_conquered1854 ปีที่แล้ว

    No one's going to push their pawn to e5 chasing a naked knight... 9 times outta 10, they'll defend the pawn on d4.

    • @Aperson-kq7pt
      @Aperson-kq7pt ปีที่แล้ว

      The most common move on the lichess database is e5 (played over 40% of the time) and played over half the time in non-bullet games rated over 1400.

    • @divided_and_conquered1854
      @divided_and_conquered1854 ปีที่แล้ว

      @@Aperson-kq7pt Wow. Non-bullet games, over 1400, huh? Jeez. Thanks for that.
      PS - I'd have to believe that blitz games are going to account for the lion's share of that 40%... (scratches chin...)
      I wonder what the stat would be if we eliminated bullet _and_ blitz games for players over 1400... Cheers!

    • @Aperson-kq7pt
      @Aperson-kq7pt ปีที่แล้ว +1

      @@divided_and_conquered1854 Just over half of the games played at a rating of above 1400 on the lichess database that have a time control of rapid or longer played e5. The reason why it’s the most played move is because it is the best - it takes more central space with tempo, and stockfish 14 NNUE gives white a +0.7 advantage at depth 45. If you want to see the popularity of each move in different openings, you can just use the book on the lichess analysis board (you can also adjust the rating ranges the moves come from, and the time controls).

    • @divided_and_conquered1854
      @divided_and_conquered1854 ปีที่แล้ว

      @@Aperson-kq7pt Thank you!

  • @2Malachi
    @2Malachi ปีที่แล้ว

    I hardly ever (1 or 2 in 100) see a two pawn move opening by white (playing ten minute games at 1000). So sadly, I doubt I will ever be able to use this. Thanks anyway.

    • @MyBiPolarBearMax
      @MyBiPolarBearMax ปีที่แล้ว +1

      Practice solid opening habits and crush your opponents for not playing properly then. At 1000, traps are less necessary than practicing spotting poor moves than can be taken advantage of .
      Advantages come from material, position and time. Space and controlling the center. Development of pieces. Planning attacks that don’t compromise your defense and making a solid position *before* attacking.
      Good luck, youll get there!

  • @Mrfelixacastillo
    @Mrfelixacastillo ปีที่แล้ว

    happy b

  • @obaidulislam2170
    @obaidulislam2170 ปีที่แล้ว

    Very nice I from Bangladesh

  • @e.j.bosman7728
    @e.j.bosman7728 ปีที่แล้ว

    Somehow my opponents, bot or not, usually play something different 😅

  • @ekpurdy
    @ekpurdy ปีที่แล้ว

    Didn't address 4.a4...

  • @richardsantos4706
    @richardsantos4706 ปีที่แล้ว

    Pb4 en passant

  • @jenm1
    @jenm1 ปีที่แล้ว

    35 is young!

  • @alexqdn8210
    @alexqdn8210 ปีที่แล้ว

    Включи пожалуйста субтитры.Знак субтитров темный не активен.

  • @barrywuthrich8530
    @barrywuthrich8530 ปีที่แล้ว

    Does this gambit have a name???

    • @user-mp3fj6xt9w
      @user-mp3fj6xt9w ปีที่แล้ว

      He mentions a name at 4:36, not clearly, but I eventually figured out he said "O'Sullivan Gambit." After 1. d4 the general opening is called the A40 Polish Defense in my source.