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Ian Nepomniachtchi vs Aleksandr Alekseevich Kharitonov
Russian Team Championship (2009), Dagomys, rd 1, Apr-04
Nimzo-Indian Defense: Panov Attack. Main Line (E54)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Dec-12-09  Al2009: CHESSTTCAMPS, you asked me to indicate books in which you can find written evidence of the old rule according to which in a same position a faster win is better than another one taking more moves.

Among many books, I can suggest you the most famous: “My 60 memorable games” by Bobby Fischer ( surely a competent player, isn’t he?), in which the rule above is underlined many times:

1) Game Fischer – Larsen 1958 (page 22) : after move 31. Qd6+ ….”A mistake! Qh6+ forces mate in three”

2) Game Fischer – Celle 1964 (page 310) after move 27. Qg4 ….” Here I forgot Lasker’s maxim. 27. Qe7+ would have forced mate in four…”

3) Game Fischer – Bednarsky 1966 (page 342), after move 17. Qe2+! “ By now I was hunting for a bigger game than the paltry win of a Queen after 17. Nf6+, gxf6 18. Bxf7 + “ (Fischer refuses to win a Queen to get a faster win). See also the comment to the game above by Larry Evans (pag. 338): “…By move 12 Fischer obtains a formation at which he had had success even as a child. Naturally he wins, but THE ECONOMY with which he does so is delightful.” ….

Therefore, it is clear that winning a game saving moves is better, it’s an implicit rule well known by everybody.

But this is also a scientific rule (chess is a scientific game), which is well known in physics, mechanics, math, logics, etc., and is named “least action principle” after XIX century's scientist Hamilton.

Between two options in the same situation , nature tends to choose the one taking least actions than the other.

Dec-12-09  Al2009: Fischer himself explains in his book “My 60 memorable games” another very important reason why it is always preferable to win by saving moves, whenever possible.

In his game Fischer – Julius Bolbochan, 1962 (page 215): “Objectively best is 25. Nxe7+ Qxe7 26. Rxa6 Rfe8 27. a4! But I was hoping to win in the middle game. Ironically, I wouldn’t been awarded the brilliancy prize had I chosen the best line here. They don’t give medals for endgame technique!”

This is an old and well known rule: some tournament organizers award players brilliancy prizes and money, but you cannot win them in the endgame, even playing like Capablanca, or Grigorjev.

Nepomniachtchi entered an endgame, but he could win in the middle game, so his choice was a mistake.

Dec-11-10
Premium Chessgames Member
  notyetagm: https://webcast.chessclub.com/icc/i...
Jan-01-11
Premium Chessgames Member
  notyetagm: <patzer2: For today's Friday puzzle solution, White's demolition 25. Ngxf7!! sets off a chain of surprising deflection sham sacrifices and a Knight Fork threat which enables him to go up a couple of pawns and simplify to an easily won ending.>

One of Nepomniachtchi's Best Games.

Game Collection: Nepomniachtchi's Best Games

Jan-01-11
Premium Chessgames Member
  notyetagm: I Nepomniachtchi vs A A Kharitonov, 2009

https://webcast.chessclub.com/icc/i...

Feb-09-12  pericles of athens: wow fantastic game. great play by nepo.
May-20-14  mathlover: A good combination to win 2 pawns.
Dec-31-16
Premium Chessgames Member
  YouRang: Saturday 25.?


click for larger view

White has lots of firepower aimed at Pg6, which is just in front of black's weakly guarded king. So, how about we undermine its support, push the king to the edge of the board, and bring in yet another strong attacker with <25.Nxh7 Kxh7 26.Qg5>


click for larger view

Black is now facing some threats:

(1) the threat of Nxf7 ...Rxf7 Qxg6+ ...Kh8 Qxf7

(2) the threat of a rook lift Bxg6, Re4 and Rh4.

If black guards Pf7 via <26...Kg7>, I can take Pg6 instead! <27.Nxg6 f6 28.Qg4 Kf7 29.Qh5>

If black guards Pg6 via <26...Ne7>, then <27.Bxb7>

Overall, I'm pretty pleased with this.

~~~~

I see that in the game, white found a flashier and perhaps stronger combination starting with 25.Ngxf7. In fact, this is a recycled problem from 2009, and back then I even saw that flashy line myself.

I was flashier back in 2009. Nowadays, I am more into "modest flashiness". ;-)

Dec-31-16
Premium Chessgames Member
  TheBish: I Nepomniachtchi vs A A Kharitonov, 2009

White to play (25.?) "Very Difficult"

With two knights near the enemy king and queen, it's natural to look for forks. It just happens that White has a way to set one up.

25. Ngxf7! Rxf7

Otherwise, after 25...Qe7 26. Qh6+ Kg8 (26...Kf6 27. Qxh7 with dual threats of Qxg6# and Ng4#, and if 27...Qe8 28. Qh4+ Kg7 29. Qh6+ Kf6 30. Qg5+ Kg7 31. Qxg6#) 27. Bxg6! White wins major material or mates, e.g. 27...Nf6 (27...hxg6 28. Qxg6#) 28. Bxh7+ Nxh7 29. Qxg6#, and even 27...Rxf7 doesn't help since 28. Bxf7+ Kh8 29. Ng6 is mate, so here Black would have to toss in the queen with 28...Qxf7 29. Nxf7 Kxf7.

26. Qh6+! Kg8

The only try, since 26...Kxh6 27. Nxf7+ (the fork!) Kg7 28. Nxd6 is an easy win.

27. Nxf7 Kxf7 28. Qxh7+ Ke8 (not 28...Kf8? 29. Bxg6 Qe7 30. Qh8#) and now White can choose between 29. Bxg6+ with a rook and three pawns for two knights (and a continuing attack), and 29. Rxc7 Nxc7 (29...Qxc7 30. Qxc7 Nxc7 31. Bxb7) 30. Bxb7. There's a lot to study here, and now to see the game!

Dec-31-16  mel gibson: I saw the move & the computer agrees
although some moves after are different.

25. Ngxf7 (25.
Ngxf7 (♘g5xf7 ♖f8xf7 ♕d2-h6+ ♔g7-g8 ♘e5xf7 ♕d6-f8 ♕h6xf8+ ♖a8xf8 ♗e4xd5 ♘c7xd5 ♘f7-d6 ♗b7-a6 g2-g3 ♖f8-d8 ♖e1xe6 ♔g8-f8 ♘d6-e4 ♖d8-d7 ♖e6-d6 ♔f8-e7 ♖d6xd7+ ♔e7xd7 ♘e4-g5 h7-h5 f2-f3 ♗a6-b5 ♔g1-f2 ♘d5-e7 ♔f2-e3 ♗b5-c6 ♔e3-d3) +4.65/20 146)

score = +4.65 depth 20

Dec-31-16
Premium Chessgames Member
  morfishine: Seen this game already, very nice combination, not too difficult to spot

*****

Dec-31-16  AlicesKnight: Missed the Q incursion. An attractive combination leading "only" to a won R+P ending.
Dec-31-16
Premium Chessgames Member
  whiteshark: <[ECO "E54"] <1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4>>

I see!

Dec-31-16
Premium Chessgames Member
  perfidious: <whiteshark: <[ECO "E54"] <1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4>>

Here is another way to a QP opening after the once-common 6....Be7, instead of 6....Bb4: 7.cxd5 Nxd5 8.Bd3 Nc6 9.0-0 0-0 10.Re1 Bf6 11.Be4 Nce7 and we have reached a position from the Semi-Tarrasch beginning with 6.e3 (ECO D42).

Dec-31-16
Premium Chessgames Member
  agb2002: The material is identical.

White can start an attack against the black king with 25.Ngxf7:

A) 25... Rxf7 26.Qh6+

A.1) 26... Kxh6 27.Nxf7+ Kg7 (27... Kh5 28.Bf3+ Kh4 29.g3+ Kh3 30.Ng5#) 28.Nxd6 + - [R+P vs N].

A.2) 26... Kf6 27.Nxf7 Kxf7 28.Qxh7+ followed by Bxg6 or Qxg6 + - [R+3P vs 2N].

A.3) 26... Kg8 27.Nxf7 Kxf7 transposes to A.2.

A.4) 26... Kh8 27.Nxf7+ Kg8 28.Nxd6 wins.

B) 25... Qe7 26.Qh6+

B.1) 26... Kf6 27.Bxg6 Qe8 (27... hxg6 28.Qxg6#) 28.Qg5+ Kg7 29.B<anywhere but h7>#.

B.2) 26... Kg8 27.Bxg6 Rxf7 28.hxg6 Qxg6# (or Qh8#).

Dec-31-16  The Kings Domain: Tough and good puzzle. Top-notch game, Nepomniachtchi unleashes his inner Anderssen.

Happy New Year to all. 😊

Dec-31-16  RandomVisitor: After 21.Ne4


click for larger view

Komodo-10.1-64bit:

<-0.13/34 21...Nf5> 22.Bb5 Rf8 23.Ng3 Rc8 24.Nxf5+ exf5 25.Rc1 Rxc1 26.Rxc1 f6 27.Nc6 Qa8 28.Nb4 Rf7 29.f3 Qd8 30.Nxd5 Bxd5 31.Rc3 Qd6 32.g3 Re7 33.Kf2 g5 34.Re3 Rxe3 35.Qxe3 a5 36.Bd3 Qd7 37.Qe2 Bf7 38.Qe3 b5 39.Be2 Bd5 40.Qd2 Bb3

Dec-31-16  psmith: <JimfromProvidence> 24... f6 25. Nxh7 Kxh7 26. Nxg6 looks good for White.
Dec-31-16  Everett: <Therefore, it is clear that winning a game saving moves is better, it’s an implicit rule well known by everybody.

But this is also a scientific rule (chess is a scientific game), which is well known in physics, mechanics, math, logics, etc., and is named “least action principle” after XIX century's scientist Hamilton.

Between two options in the same situation , nature tends to choose the one taking least actions than the other.>

Each game is played in a larger context, say, a multi-round tournament, a long WC match, etc. In such instances, Efficiency can also be found in conserving energy for future rounds by playing a sure yet less taxing and slower win, yet a win nonetheless.

With the clock ticking, often one does not have the time to work out all the intricacies and complexities of a potential winning combination of moves, thus pragmatism will often be the better and often the more effective way to go to ensure greater success in the long haul.

Dec-31-16  johngalt5579: I am confused about the solution but I think it involves Ngf7 and Ng4.
Dec-31-16  johngalt5579: Aah! did not see Qh6!
Dec-31-16  King.Arthur.Brazil: I see that Nc7 was theme of combination due to Ne6+ possibility, but didn't see Qh6+ directly, but had seen Rxc7! After all, the win in the endgame seem to throw out all the briliancy expected before. It's nothing wrong, yes, white win but didn't seem too good. But this is the last 2016'y game and I'd like to whish you all very happy new year, even if my comment will be cut off afterwards. Hope that 2017 get us together in this Kibi's corner again. Thank so much chess webmaster too.
Dec-31-16
Premium Chessgames Member
  ColeTrane: CG's engine actually saw it today. I however did not.
Dec-31-16
Premium Chessgames Member
  chrisowen: Djs cup f7s flungoff von guv f7s fobhungs lunks h6s huffoff g8s ghosthugs von guv f7s flockoff von guv f7s foodhugs it to dinklug 27...Qd7 dog dunk dubsoffs hmmmus jacks o russel von guv thous 3 ousts it to chincogs 28.Rxc7+ kub alm clungoff bunks it to dinkdunk 28.Bxd5 kub alm doorus los it to hinthung 28.Qxh7+ kub ousts hungoffs 5 ousts it to chincogs 28...Qxc7 dob bod clungoffs lunk u von guv thous tumps d5s doorus o g8s ghosthugs cob hug e6s it's i eveoffs von guv thous h8s doghunts hunghoods dunks thous goods tho plussy won conts it to dinklug hmm von guv thous djs cup plums ave aboon von guv nub bag gab thy wus kos oks von guv queasy h6s hugoffs hem fin victor dunks d5s kub alm doorus los it to hinthung 28.Qxh7+ kub ousts hungoffs 5 ousts it to chincogs 28...Qxc7 dob bod clungoffs lunk u von guv thous tumps d5s doorus o g8s ghosthugs cob hug e6s it's i eveoffs von guv thous h8s doghunts hunghoods dunks thous goods tho plussy won conts it to dinklug hmm von guv thous djs cup jocks cjs cos thous ave passy plums man pal lab aboon bap von guv nub bap gab bag bug gut thy way wus ukelele g8s ghostarms has moots kos oks von guv queasy h6s hungoff hem emp muffy fem fun von guv nub fin o c2s cub los it to dinklug hmmm von guv thous hug fine i vet motor vid ebb o d5s kub alm doorus los it to hinthung 28.Qxh7+ kub ousts hungoffs 5 ousts it to chincogs 28...Qxc7 dob bod clungoffs lunk u von guv thous tumps d5s doorus o g8s ghosthugs cob hug e6s it's i eveoffs von guv thous h8s doghunts hunghoods dunks thous ave goods tho plussy won conts its lates von guv hiyas von guv bus v aisle thy queasy hilts aye yea von guv hails yet latish q yes hasty lie bashy lites hay bus tilly von guv hay vines islet tails hey lay heist von guv f7s flungoff won drone quods cutoff bud dunks d5s doorus lunks dogus bud cruds von guv fought bud cup e6s it's i eveoffs von guv thous h8s doghunts hunghoods dunks thous goods tho plussy won conts it to dinklug hmm von guv thous bud fly bonds dunks doors o dub o cutoff bud duv it's i eveoffs von guv thous d6s duffhug bus los it to ford 24...Qd6 v foods dughuff von guv thous 3 oust bus los it to ford 24...Rb8 v foods o u bondhungs von guv thous ousts o dug conts could job jod hop oks von guv ave fought fluffs o c2s cub bus los it to cinch von guv thous bluff gutoff von guv h6s hungoff finish o it's i evermores von guv thous ave gums ums das dones its lates von guv hiyas von guv bus v aisle thy queasy hilts aye yea von guv hails yet latish q yes hasty lie bashy lites hay bus tilly von guv hay vines islet tails hey lay heist von guv f7s flungoff bus los it to finds;
Dec-31-16
Premium Chessgames Member
  chrisowen: 25.Ngxf7 Rxf7 26.Qh6+ jod hop finish queasy hinthug hungoff job jocks jod joffy jog jug jojos von gluvs journ jossy jut jot lubbly jubbly jowls joy von guv f7s fobhungs flockoff von guv foodhung fluffvow foglungs flushout fogjumpy foothung flockhug von guv fullvons flumpout flungout floodoff von guv flopoust finishus von guv flowbung hog hung o c2s cub won bus los it to dinklug von guv thous hog hung gog grogs von guv goofs guffs huffs hoofs it's i eveoffs von guv thous d6s duffhug bus los it to ford 24...Qd6 v foods dughuff von guvs thous 3 oust bus los it to ford 24...Rb8 v foods o u bondhungs von guv thous ousts o dug conts could job jod hop oks von guv gongs ghosts ghouls gruff von guv gulch flungs mucks mocks fog foggy mug moggy guffs goofs hoofs it's i eveoffs von guv thous d6s duffhug bus los it to ford 24...Qd6 v foods dughuff von guv thous 3 oust bus los it to ford 24...Rb8 v foods o u bondhungs von guv thous ousts o dug conts could job jod hop oks von guv glums o c2s cog com flocks muffs clung gusts ghosts ave ghouls flumps its lates von guv hiyas von guv bus v aisle thy queasy hilts aye yea von guv hails yet latish q yes hasty lie bashy lites hay bus tilly von guv hay vines islet tails hey lay heist von guv f7s flungoff lunks h6s huffoff bus los it to goodus 26...Kg8 27.Nxf7 Kxf7 dog fob flungoff bus los it to dinklug 27...Qd7 dog dunk dubsoff von guv thous 3 ousts it to cinchhug 28.Rxc7+ kub alm clungoff bunks it to dinkdunk 28.Bxd5 kub alm doorus bus los it to hinthung 28.Qxh7+ kub ousts hungoffs 5 ousts it to chincogs 28...Qxc7 29.Bxd5 Kg8 30.Bx6+ about it's i eveoffs von guv thous ave coots 30...Kh8 doghunts hunghoods dunks thous goods tho plussy won conts it to dinklug bus nuk nuk knock tints coots lug flock vow conks crunk uvs hug tonks luv knight f7s flungoff ooh prang bocks hoofs ave lug foots fun von guv nub ukelele g8s ghostarms has moots kos oks von guv queasy h6s hungoff hem emp muffy fem fun von guv nub fin o c2s cub los it to dinklug hmmm g5s gourds von guv thous hug fog f7s flungoff boots but vow bunts blunt tub butty coffs cuffs hoofs chuff goods lug flush hocks locks fob boffs fun guv luv nub flush found bloop oks von guv vow cuffs d6s duffhug bus los it to ford 24...Qd6 v foods dughuff von guv thous 3 oust bus los it to ford 24...Rb8 v foods o u bondhungs von guv thous ousts o dug conts could job jod hop oks von guv ave fought fluffs o c2s cub bus los it to cinch off ons von guv thous vow uvs hug pub pob pogos h6 hungoff finish hod bud hmm ohm bog con don cod bun fog gun buds ums bod x achtung ave baby minds hug hes jovial v account good give mucks mocks d6s duffhug bus los it to ford 24...Qd6 v foods dughuff von guv thous 3 oust bus los it to ford 24...Rb8 v foods o u bondhungs von guv thous ousts o dug conts could job jod hop oks von guv ave fought fluffs o c2s cub bus los it to cinch off lug f7s flungoff;
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