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Josh Manion vs Vladimir Eduardovich Akopian
USA (1994)
King's Indian Defense: Orthodox Variation. Positional Defense (E94)  ·  0-1


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  lost in space: Wow, look at this!!!

They are listening at me. I should change my profession and get tamer in a circus.

Premium Chessgames Member
  johnlspouge: Saturday (Very Difficult): Black to play and win.

Material: B+P for R. The White Kh1 has 1 legal move. Black has a local superiority on the K-side, with Bb8, Bd7, Qg4, and Nh5 attacking both light and dark squares. Only the White Nb6 needs activation. The White has relevant defenders Qe1 and Bg2, with possible aid from Rd1, but Na3 and Nb5 are on another planet, away from the K-side. The White Qe1 defends Pg3, the focus of the Black attack, but the defense is illusory, because Qe1 is overburdened and must defend Rd1 against Qxd1. The candidate is therefore a capture of Pg3. White has no immediate counterattack, because Bd7 covers e8, the entry point for Qe1. In general, Ns are better "local" pieces than Bs, so the first candidate 30Bxg3 leaves the N on g3. A sample of 30Bxg3 is unpromising, so we sample 30Nxg3+ next.

Candidates (30): Bxg3, Nxg3+


White is best to decline the sacrifice [<according to computer evaluation, acceptance is better>], but then loses a P without compensation and faces a continuing K-side attack in a passive disorganized position. If White accepts the sacrifice, however:

31.hxg3 Bxg3 32.Qd2

The Bd7 no longer needs to guard e8.

[32.Qf1 or 32.Qg1 crowd Kh8 into a mating net; other Q moves abandon Re1 to Qxe1+]

32Qh4+ 33.<Kg1>

I had a failure of board vision and went for

33Qh2+ 34.Kf1 Bh3 (threatening 35Qh1+ 36Qxg2)

missing that 34Bxh3 is possible.

With the <last move entered> emphasized, and full computer variations given, so humans can improve at the end (definitely the case below), Toga II 1.3.1 evaluates this line as

[ply 15/45 time 00:32 value (to White) -1.46]

33.<Kg1> Bg4 34.Qd4 Bxd1 35.Qxd1 Qxb4 36.Qd4 Qe1+ 37.Bf1 Qe6 38.Qd3 Qg4 39.Nc2 Qg5 40.Bg2 Qc1+ 41.Bf1 Bf4 42.Nc3 Qb2 43.Bh3

Toga evaluates the game variation as

[ply 15/53 time 01:41 value (to White) -1.33]

33.<Nxc4> Qh4+ 34.Kg1 Bh2+ 35.Kf1 Qxc4+ 36.Qd3 Qxd3+ 37.Rxd3 Bxb5 38.Ke2 Bd6 39.a3 h5 40.Bxd5 b6 41.Bg2 Kg7 42.Ke3 Bxd3 43.Kxd3 h4 44.Kc4 Kf6 45.a4

The evaluation is close enough that game variation could be better positionally: it activates Nb6.

Aug-23-08  Rama: LOL! With the thing correctly labeled Black To Play, I saw the N-sac on g3 resulting utlimately in white's Qd2, but there is where I stopped because nothing obvious came to me. I had been searching for a way for black to get in Nc4 which opens a diagonal and has threats of its own -- but I had not seen that it also hits the Qd2 and thus gains a vital tempo! Blindness!
Premium Chessgames Member
  johnlspouge: <<lost in space> wrote: [snip] I should change my profession and get tamer in a circus.>

Hi, <lost in space>. A friend told me this story when I lived in Germany. A German tourist in England told someone, "I become a fish." ("Ich bekomme einen Fisch.") The answer was: "I hope not, sir."

Don't worry. I know your German is better than mine ;>)

Premium Chessgames Member
  kevin86: I answered the first move after abandoning the sacrifice 30...♕xd1+.

It looked like fumbled the ball when they said it was "white to move". I guess it's as easy as dropping a baton at a relay race.

(There's no truth to the rumor that Hitler or Saddam used sticks of dynamite to hand off in the relay races of Nazi Germany or Iraq)

Premium Chessgames Member
  lost in space: Hi <johnlspouge>,


seems that your German is better than my English.

Premium Chessgames Member
  johnlspouge: After some analysis with Toga II 1.3.1, these variations are the best so far:


White can decline the sacrifice

(1) 31.Kg1 Ne2+ 32.Kf1

32...Nf4 (threatening 33Qxg2#, 33Nxg2, and 33Qxe1)


White has lost a P without compensation. Despite approximate material equality, he faces a continuing K-side attack in a passive disorganized position. The variations are complicated, but refusal eventually loses more material than acceptance.

White can accept the sacrifice:

(2) 31.hxg3 Bxg3 32.Qd2

The Bd7 no longer needs to guard e8.

[32.Qf1 or 32.Qg1 crowd Kh8 into a mating net; other Q moves abandon Re1 to Qxe1+]

32Bf4 (threatening Be3 and Qg5, locking the dark-squares down for a mating net)

The game might continue:

33.Qd3 Qg5 34.Nd4 (to bring another defender to plug the h-file)

34.Nf3 Qh5+ 35.Nh2 Bf4 37.Kg1 Bxh2

leaving Black with B+3Ps for R.

Aug-23-08  PuzzleMaster: Sat 2008.08.23 (Black to play. 30 ... ?)

Candidates: 30 ... Nxg3+, 30 ... Bxg3

A1) 30 ... Nxg3+ 31. Kg1 Ne2+ 32. Kf1 Nf4

A2) 30 ... Nxg3+ 31. hxg3 Bxg3 32. Qd2 Qh4+ 33. Kg1 Qh2+ 34. Kf1 Nc4 ∞

I thought 30 ... Nxg3+ just HAD to be it.

Premium Chessgames Member
  johnlspouge: To calibrate the new CG puzzle guy (yes, you :), this puzzle is beyond standard Saturday level. Saturdays permit me (with computer aid) to enumerate all feasible variations to clear positions with at least 1P material advantage or mate. Rare Sundays force the use of positional judgment to terminate some variations in a material deficit, as today.

I probably speak for all of us in saying that the CG puzzles are wonderful. You have a difficult task, so <Woody Wood Pusher>'s suggestion of taking the puzzle page <as laid out> and solving it with a computer before posting is a sensible check.

Aug-23-08  PinnedPiece: "In these deeds shall be seen
the quick power of the queen"


Premium Chessgames Member
  johnlspouge: <<lost in space> wrote: [snip] seems that your German is better than my English.>

Hi again, <lost in space>. You do not have a chessforum, but I would like to tell you of an experience I had in Germany.

I had a good friend who spoke excellent English. I called him "mein Teufel" (my devil), because he continually teased me about how bad my German was (despite permitting only one person to speak English to me). I remember the one conversation where he broke into English to tell me: "You know, to understand you, I have to translate everything into English and then back into German. Why don't you spare me a step, and just speak English?"

Thanks for showing me his point of view :)

Needless to say, my friend was a tremendous stimulus to my continued improvement in German, and I am very grateful to him. The moment came, however, when I first conversed with his father, and his father asked me, "Are you planning to stay in Germany? Your German is so good!" Out of the corner of my eye, I saw my friend's face fall.

It was wonderful.

Premium Chessgames Member
  DavidD: One of the biggest problems in solving chess puzzles is the very fact that we know it is critical position with either White or Black to play and win. Thus our attention is focused on looking for a winning continuation. Sadly, when such positions occur in our tournament games, there is no one to tell us to look for a win in the position on the board. We miss wins because we aren't looking for them.

Now, however, there seems to be an ever greater bias. In general the puzzles range from easiest on Monday to insanely difficult on Sunday. So we become programmed to look for concrete wins early in the week and then just good lines later in the week. Again, this is an even worse bias to deal with. We are not only looking for wins, but for "easy" or "hard" wins depending on the day of the week.

All players here should strive to eliminate ALL bias in their play. Forget what day it is. Set up the position, put 15 or 20 minutes on the clock, and try to solve as much as you can under simulated tournament conditions.

And we should especially avoid ALL arguments as to whether this is a perfect puzzle for the day or not. Concentrate on the position. Examine the variations. Strive to discover the truth about the position of the day. That's what we are here for. To learn chess.

Premium Chessgames Member
  johnlspouge: <<DavidD> wrote: [snip] And we should especially avoid ALL arguments as to whether this is a perfect puzzle for the day or not. [snip] >

Respectfully, many of us have to plan our time ahead.

<Strive to discover the truth about the position of the day. That's what we are here for. To learn chess.>

My approach to each puzzle is visibly uniform and unprejudiced by the day of the week, so obviously, I agree with the rest.

Aug-23-08  MostlyAverageJoe: <johnlspouge: To calibrate the new CG puzzle guy (yes, you :), this puzzle is beyond standard Saturday level.>

Ahem, I have to disagree. After plugging the position into my evaluation algorithm, it came out as average Saturday difficulty (among the tractable Sat. puzzles). Note that about half of Saturdays are intractable (in the sense that the Hiarcs engine at highest setting has no clear idea of the best line within 10 seconds).

Another data point arguing for Sat difficulty: I saw the threat of Nxg3 when looking at the initially mis-posted puzzle (one move before the real puzzle position, white to move) fairly easily. Usually I have to spend more time on Saturdays to even come up with a plausible first move.

<DavidD: One of the biggest problems in solving chess puzzles is the very fact that we know it is critical position with either White or Black to play and win.>

Yup, I 100% agree. Perhaps you'd like to lend support to my modest proposal (see my profile for details) for making the puzzles more resembling the real life?

While the yesterday's mistake in the puzzle presentation was a clear SNAFU, I found it quite satisfactory nevertheless. I think anyone who diagnosed the mistaken postion to be won for black, not for white, deserves a good portion of the credit.

Premium Chessgames Member
  patzer2: For today's Saturday puzzle, having previously sacrificed the exchange with 17...Rxc5!? to hold the position in dynamic balance, Black now does not hesitate to play the sham sacrifice 30. Nxg3!! to demolish White's pawn structure for a complicated but decisive attack against White's castled King.

However, Black's follow-up must be conducted precisely to secure the win. For example:

If 32. Qf1, Black gets a mating attack with 32...Qh4+ 33. Bh3 Bxh3

If 33. Nxc4!?, White puts up more resistance but Black gets a won endgame after 33...Qh4+ 34. Kg1 Bh2+ 35. Kf1 Qxc4+ 36. Qd3 (36. Qe2 Qf4+ 37. Qf3 Bxb5+ 38. Kf2 Qh4+ 39. Ke3 Qxb4 40. Qf6 Qa3+ 41. Kd2 Bd6 ) 36... Qxd3+ 37.Rxd3 Bxb5 38. Ke2 Bd6 39. Bxd5 Bxd3+ 40. Kxd3 Bxb4 41. Bxb7 f5 .

Premium Chessgames Member
  johnlspouge: <<MostlyAverageJoe> wrote: Ahem, I have to disagree.>

On the issue of puzzle difficulty, I can only defer most humbly. Always nice to "see" you, <MAJ> :)

Premium Chessgames Member
  lost in space: Hi <johnlspouge>,

you are right, so far I have no chess forum. The reason is easy: I am a rookie on CG, just started a few months ago (after a long, painfull and frustrating debate with fritz) and my biggest problem is the time (especially during the week). But I am sure, sooner or later I will estabish my own forum.

I hope you are still in contact with mein Teufel. He can much better explain his point of view than I can.

Very much like your posts.

Premium Chessgames Member
  johnlspouge: I was curious about the move 29...Bb8 preceding the sacrifice 30...Nxg3+. Its placed Nb5 in the cross-hairs for ...Bxb5 in some variations, but 29...Nxg3+ looked playable. In fact, 29...Nxg3+ appears better than the game variation.

Here is the Toga evaluation, under my usual conditions:

[ply 15/50 time 00:40 value (to White) -4.52]

29...<Nxg3+> 30.hxg3 Bxg3 31.Qd2 Qh5+ 32.Kg1 Bg4 33.Kf1 Bxd1 34.Qe3 Bh2 35.N7b5 Qf5+ 36.Ke1 Bg4 37.Nd4 Qf6 38.Bf3 Bxf3 39.Nxf3 Qa1+ 40.Kd2 Qxa2+ 41.Kc1

It might be basically the same as a game variation I gave below, but with Nb5-d4-f3-h2 to rescue the White K no longer available. I still think this is a tough position, however, and I do not entirely trust my Mom-and-Pop computation.

If you care to power up your quad-core to correct me again, <MAJ>, feel free ;>)

Aug-23-08  Slurpeeman: I agree with whoever said it was a waste of time. I spend a lot of time on the position with white to play and decided that this is one of those positions where you have to gain slight advantage and nurture it till it's more pronounced.

My first thought with Black to play was Nxg3, but I like Bxg3 better because it is trickier and if White goes with impulsive Q x B, then ...Q x R mate.

I will try to find a win for White here (since I started doing that already it) and see what I can find. I will also try to find less agressive winning line(s) for Tsarev - Malaniuk. Coming up next week. Link on my profile

Aug-23-08  Jason Frost: 30...Nxg3 31. hxg3 Bxg3 32. Qc3 Qh5+ 33. Kg1 Qh2+ 34. Kf1 Bh3 as bishop can't take because of mate and 35. Rd2 is followed by 35...Qh1+ winning
Aug-23-08  SuperPatzer77: <Jason Frost: 30...Nxg3 31. hxg3 Bxg3 32. Qc3 Qh5+ 33. Kg1 Qh2+ 34. Kf1 Bh3 as bishop can't take because of mate and 35. Rd2 is followed by 35...Qh1+ winning>

<Jason Frost> You overlooked the White Rook at d1. Look -> 30...Nxg3+, 31. hxg3 Bxg3, 32. Qc3??? (Blunder) Qxd1+, 33. Qe1 Qxe1+, 34. Bf1 Qxf1#. 0-1

32. Qc3 is a blunder so, White's only move is 32. Qd2.


Aug-23-08  permutation: In the invitation for premium membership it says 'be treated like a king'. But kings have a hard time in chess.
This is not much of an incentive.
I think I'd rather be treated like a pawn on the eighth rank and be promoted. That way I get more choice and not pushed around from pillar to post like a poor old king!
Aug-23-08  Kings Indian: Hello, Kings Indian's Dad speaking again. Yesterday's puzzle befuddled me, and I didn't even give it a start. Whenever I get the first move right, it gives me lot's of encouragement to trust my instincts.

That was so for this puzzle. I figure the puzzle masters are trying to find games that do have a fairly straight line to advantage or victory.

The knight was a fairly easy start. It took out a defender while opening the H file for the queen. White takes the pawn.

What to do with that dangerous white queen? Chase it away with the dark bishop.

Now came a dilemma. Should I check the king now? or am I missing something.

Ah! of course, the white queen is inhibiting black's dark bishop. Any checkmate web would need more working space.

First I thought of the white's dark bishop. That proved a dud right off the bat. I hadn't first noticed how neatly the bishop wards the white queen off protecting it's king.

Other candidate, only the night way up there on the B6.

Down it comes to C4. The white queen offers a trade. I paid no attention, and checked the white king with my black queen. The only place to do that without the trade, is to go to H5. King moves to G1.

The black bishop needs to keep sentinel. I had to think this one out a long time. I knew I could check the white king with the queen, but then what? There is that pesky white bishop. I could not think of a way to continue the attack.

Of course the white king is now at F1. The only square he could flee to.

The white square bishop was poised to join the fray. Ah! The exchange made brings the black queen back into checking the king.

After that I got a bit lost, according to the answer. Still, I think I did enough to feel good about myself. I never know where to stop anyway.

Premium Chessgames Member
  Gilmoy: I took a different approach to this puzzle -- mostly due to external time constraints. I saw the 30..(N,B)xg3 complex right away, thought it too obvious, and didn't pursue either one further. (Plenty of time to return to them if Plan C doesn't pan out.)

What caught my eye was the possibility of Ba7, controlling g1 with a Greco mate (Nxg3+ and Qh5+). White's chained Ns control a7. But Black can undermine the front N with 30..Nc4.

It doesn't quite work, because 31.Nxc4 Bxc4 32.Ne3 pokes Black's Q one move too soon. So Plan C peters out -- but it does return a useful nugget in ..Nc4. Merge that back into Plan A/B.

Aug-24-08  456: Friday puzzle Aug-22-08 <34. ?> V Tsarev vs V Malaniuk, 1989
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Featured in the Following Game Collections[what is this?]
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