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Grigory Serper vs Ioannis Nikolaidis
"The Usurper" (game of the day Jun-08-04)
St Petersburg Open (1993)  ·  King's Indian Defense: Kramer Variation (E70)  ·  1-0
To move:
Last move:

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Given 11 times; par: 64 [what's this?]

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find similar games 1 more Serper/I Nikolaidis game
sac: 17.Nd5 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 6 OF 6 ·  Later Kibitzing>
Mar-19-15
Premium Chessgames Member
  Alex Schindler: This is really enjoyable to play through. It sure is cool when a player can sustain an attack that lasts the whole game, tossing out pieces with reckless abandon because there's a bigger prize at the end. Must have been a tough guess the move!
May-31-15
Premium Chessgames Member
  Phony Benoni: Have fun!
May-31-15
Premium Chessgames Member
  diagonalley: brain hurts... wibble wibble wibble
May-31-15  jith1207: This month I have solved more Sunday puzzles than some of the mid-week puzzles. Sometimes I have missed Tuesday puzzles, may be often this month. It gives more satisfaction to be this way though, hope next month I can be even better.
May-31-15
Premium Chessgames Member
  agb2002: White has a rook and a pawn for a bishop and a knight.

Black threatens 25... fxe3.

The first idea that comes to mind is 25.Qd5 Qxd5 26.Rxc8+ Kf7 27.Rxd7+ Kf6 28.Ne4+ Kf5 but White looks lost.

This line suggests 25.Ng4, enabling f2 for the bishop, controlling f6 and e3, and preventing a possible exf2+:

A) 25... fxe3 26.Qd5

A.1) 26... Qxd5 27.Rxc8+ Kf7 28.Rxd7+ Ke6 29.Re7+ Kf5 30.Nxe3+ Kg5 31.Nxd5 Rxc8 32.d7 Rd8 33.c6 wins.

A.2) 26... e2 27.Kf2 Qxd5 28.Rxc8+ as in A.1.

B) 25... 0-0 26.Bf2 g5 27.Qxb4 with thre linked passed pawn looks winning.

-----

Another option is 25.Rxc8+ Qxc8 26.Qd5:

A) 26... fxe3 27.Qe6+ Kf8 (27... Kd8 28.Qe7#) 28.Rxd7 exf2+ (28... e2 29.Nd3) 29.Kxf2 Qe8 30.Re7 wins.

B) 26... Nf8 27.Qf7+ Kd8 28.Qe7#.

C) 26... Nhf6 27.Qe6+ Kf8 28.Ne4

C.1) 28... fxe3 29.Nxf6 Bxf6 30.Rxd7 wins.

C.2) 28... Nxe4 29.fxe4 fxe3 30.Rxd7 wins.

-----

I'd play 25.Rxc8+.

May-31-15
Premium Chessgames Member
  morfishine: This wildly unbalanced position has the earmarks of a Blitz or rapid game.

White is up an exchange but about to lose a piece

I thought the most promising continuation was <25.Rxc8+> 25...Qxc8 followed by <26.Rc7> planning a pawn-roller

I didn't consider centralizing the Queen <26.Qd5>

*****
Exciting game to go through

*****

May-31-15
Premium Chessgames Member
  gofer: White is R + P v B + N exchange "down", but has to mighty passed pawns and also black's king trapped in an un-castled state. So my initial reaction would be to cement that situation...

<25 Rxc8+ Qxc8>
<26 Qd5 ...>

White gives back an exchange to go a whole knight down (and with a bishop en prise), but has a number of threats... Qe6+, Ra8 and c6! The worst of these seems to be Qe6+ winning Nd7 and Qc8 and moving swiftly into a winning endgame.

Moving the knight to stop Qe6 check doesn't work...

26 ... Nb8 27 Re7+ Kd8 28 c6

26 ... Nxc6 27 Re7+ Kd8 28 Bxc6

Counter-attacking doesn't work...

26 ... fxe3 27 Qe6+ Kf8 28 Rxe7 Qxe7 29 Qxe7 exf7+ 30 Kxf7

"Running away solves nothing"

26 ... Kf8 27 c6 Nhf6 28 cxd7 Qd8 29 Qe6 fxe3 30 Nd3 Ng8 31 Nxb4 Bf6 32 Nc6

<26 ... Nhf6>
<27 Qe6+ Kf8>
<28 Nd4 ...>

~~~

Hmmm, I gave up, but worse than that I saw the main line, but missed <all> the side issues.

Like 29 Kf1! and then the startling 30 Rf7+! both avoiding black having any chances of playing any checking moves and forcing the loss of the queen. Very Difficult indeed!

May-31-15  wooden nickel: Many options to try on this wonderful Sunday puzzle. Although not all forced, this line looks interesting: 25.Ng4
If 25... fxe3 then 26.Qd5 Qxd5 27.Rxc8+ Kf7 28. Rxd7+ Ke6 29. Re7+ Kf5 30. Nxe3+


click for larger view

25... O-O looks safer for Black but still good for White. One deficiency of puzzles is not knowing the right to castle for either side without peeking at the game with a viewer... By the way, my compliments to CG for the improved link to the default viewer pgn4web, since a few weeks ago, it directly leads to the puzzle position.

May-31-15
Premium Chessgames Member
  Penguincw: Damn it, I thought 25.Rc7 was the answer, but I missed 25...fxe3 (and also the fact the rook is hanging).

Ugh, 0/7 this week, what a tough week. At least tomorrow is Monday...

May-31-15
Premium Chessgames Member
  MindCtrol9: The first 2 moves are not bad to see where White with a great concept of what having the initiative is exchanged the Rook by Bishop with check, then centralizing the Queen threatening to get the Black Queen.I like this puzzle where you see that on move 42 Black can resign due to the lack of coordination of the pieces he had on the board.
May-31-15  Clodhopper: It's just amazing the amount of massive talent - Like Grigory Serper - who are still out there but you hardly ever hear about these days.
May-31-15
Premium Chessgames Member
  patzer2: One surprising aspect of today's Sunday puzzle solution 25. Rxc8+! is it's a follow-up to a combination begin with the strong move 21. Bb5!, which first appeared here (21. ?) as a Friday (i.e. June 17, 2011) puzzle.

As a general rule, the initial moves in a long combination are more difficult to find than the later follow-up moves.

Does this mean today's Sunday puzzle (25. ?) solution is less difficult than the Friday puzzle (21. ?) combination setting it up four years ago?

If it's a trend, maybe I've got a shot at solving a few more weekend puzzles this year.

P.S.: Black's best chance at improvement in this game appears to be the missed opportunity 11...h5! when play might continue 12. Nf1 Qc7 13. Qd2 Nf8! (-0.70 @ 26 depth, Deep Fritz 14x64).

May-31-15
Premium Chessgames Member
  nazgulord: Oh. My. God. WHAT A GAME!!! Thank you CG for alerting me to this masterpiece!
May-31-15
Premium Chessgames Member
  Jimfromprovidence: How about 29...Qa6+?! This forces 30 Kxf2; now comes 30...Qe2+?!


click for larger view

Next comes 31 Kxe2 Nf4+ 32 Kf2 Nxe6 and when the dust clears we have this position.


click for larger view

It it white to play and win in this side puzzle.

May-31-15
Premium Chessgames Member
  patzer2: The real fire works in this game begin with 17. Nd5!!

Now (17. ?) would make for an interesting Sunday puzzle. I don't know if 17. Nd5! a forced win, but it's surely a sound positional sacrifice that gives White excellent winning chances.

May-31-15
Premium Chessgames Member
  Phony Benoni: <jith1207: This month I have solved more Sunday puzzles than some of the mid-week puzzles. Sometimes I have missed Tuesday puzzles, may be often this month. It gives more satisfaction to be this way though, hope next month I can be even better.>

To each their own. Personally, I'm happy solving Monday and Tuesday puzzles. That's a useful skill, since those are the types of positions we see in almost every game.

We might reach one Sunday puzzle position in a lifetime. And we'd probably botch it.

May-31-15
Premium Chessgames Member
  patzer2: <Jimfromprovidence> Nice puzzle position (i.e. final diagram in your post above) after 29...Qa6+ 30. Kxf2 Qe2 31. Kxe2 Nf4+ 32. Kf2 Nxe6.

I saw 33. c6! easy enough, but missed 33...Kg8 34. Re7! (not 34. c7?? Kh7! ) 34...Bf8 35. Re8 Kf7 36. d7 g5 37. Rxe6 Be7 38. Rh6! Rxh6 39. c7! (diagram below):


click for larger view

when play might continue 39...Rc6 40. d8(N)+ .

May-31-15
Premium Chessgames Member
  chrisowen: Plan rook ah gap vowed aboved haven an a8 reached,

c8 as aps daggar true vilificate delighted gad fly gas paid up dip dob bawl club watches c8 first over queen c6 back and flow from there tactics abound hunt d5 centre entre e6 and get d7 bishop off ah good allowed bishop and knight to be taken off and get rid off pieces until c6 marches home and got my camel he c8 good hi hot trot c8 lit rit ok roves lore loud appraisal ukelele c8 blast jink jowl wavers d7 taken later white haven won good gads difficult by dagrees didnt catchup until d5 and wondered if white could wind down c5 and d6 to gained victory and plug c8 away wrist watched lace rush on a limb mob under am c8 first vamoose queen c6 guts gas tuttle ploy use rum blink cojoined woah chubbed.

Good i cayenne c8 pepper haven c6 abounds c8 and queen enter read d6 angle e6 face off ar good brother c8 act ring it ok of course it is inglorious vetted path vested interest greta game good dump rat use podium finish kid aims c8 and wins.

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land decides c8 first an clean 25.Rxc8+ jo on hand d7 given joust jock c5 jocular c8 an jod hopper dojoed on by joe joffi c6 back jog on josh joie de vivre c8 jolly lows mojos jonty c6 joop haven joker ala journey joss stick jot jowls c6 by joves c8 jotter pine joy an oomph an oodles of vetted room act boon da oose it is a good turn resaved and,

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riven cashheads act cannibals rivet an captures away act calamitys and cessateds ash cow-horns and cow-bells,

May-31-15
Premium Chessgames Member
  chrisowen: Rung out couchdown ash wins cockwins any vet up cuffhands and chastened away act chowdowns comeinter glide corpuscle and carry-ons ash classifys oh door countown and crotchets ash caseheads and coveralls mince hoof d5 lance e6 huffle and chef fetches head cuff fletches an arrow fleece huff d5 hide berth chooses and choices abound bash amp bath blanche c8 i nash and nosh hand hunt chases chip had busses around d7 on keyed 25 ...Qxc8 26.Qd5 fxe3 27.Qe6+ or gantrys 27.Nd3 wins queen be a8 gushers 27 ...Kf8 28.Rxd7 or couldtry 28.Qe7+ an redmarks 28.Ne4 drawish best to d7 grab haven by encircle 28 ...exf2+ bod dob catcher c8 later wins haven try amply good winner riven betted i fee fi fo fum vowed affable good build off ar good dint doot i f2 any glass wax a cut i caved away i f2 lease am flackhead 29.Kf1 Qe8 30.Rf7+ about lovely half turned off ar good flighter if angled floater glide across formed fanciful lively flanger true delights haven called corroborates 30 ...Qxf7 31.Qc8+ bad landed i c8 angled off ar be churlish behavior arrives canalleys away forded i nash headers c8 act use thorn on campers caveheads away angled ray i 31 ...Qe8 32.d7 Kf7 33.dxe8+ mob why dick around cabled wire brush away huvs angled betters evermores abreast exactly entwines raven off ar goods establish vetted pointed erstwhile good build ash bud 33...Rxe8 34.Qb7+ fact be beneaths come on no cheating it is ok riven raves ash rove choice believed muff driven besotter keyed lights bouncers ash coves away waves after waves it serves no purpose vetted interest ash case 34 ...Re7 35.c6 e4 36.c7 e3 37.Qd5+ dash nash hands given try i delver and rove dipper vowed away dasher bet gane had ride drowns out ok vow amps daddy bug gotch grins riven port dances away aimed fed good dancer vantage off ar good ash guffaws 37 ...Kf6 38.Qd6+ oblivion aether bind given dipoffs and be draggar true light it ok roves away obituary written inter glide bruvver rambled gives donkeys up over i dreamer cane bambooed plinth cased drivers calm good detox divides into fifths haven ash flighter 38 ...Kf7 39.Qd5+ of course it is ok roves amp i delves deep drifts haven ride over dipoff tries dancer free checks plug drains haven frame failsafe good fleece away an loves ash fancifuls 39 ...Kf6 40.Qd6+ an points ash foilable mission select black it ok roves parks decides game i drifter glide dancers vow an duffers haven goods dipoffs right deceits coves and angle drought over fluffer 40 ...Kf7 41.Qxe7+ pined off ar good fade given often eg liege nt plod an eg gains right room an left to his devices queens i c8 and wins light it ok rove exactlys then points it ok hovel down ar good evermore abreast angles energies right and left be exacters over raved bloods an dagger e7 i ment core angles c7 and promotes haven guild bash an eg won gavel hammer c7 rides away betcha grins an c8 gives amp victory back to walls creatives an gesture cherubims and holy light won key it is ok rove i 41 ...Kxe7 42.c8Q 2 points ahead round g6 pawn up and cover e1 king's an gap haven be e3 light wins back pint reed flute free bishop g7 an e3 cant be good ja hips barge g6 around often rich reenter thins hi light low pack pit cinches c8 limbs man pop it hind wobble car bind change wads mooted points exchange off re e3 you'd rover bishop bruv under gun dog hit ok over now mince pad free engage an e3 cant be good planet ref palms i remember done rec crescent moon leeway pray from cad i now gap haven won revver g7 angle h6 an e3 food king's an flap engage paved flow face pins cayenne pepper riven pot roved balance boot dog hit ok hovel h6 hips light g6 bis key bluff hail duress rummage c8 on life dote dins back kind barge g6 keed batcher c8 am beyond doubt mince rec ram dash hi bath lance bats an e3 cant be good back pond king's aether pave flow face pins bank i e1 moon ash hobble g7 angle h6 an e3 puts out it was.
May-31-15  Moszkowski012273: I gotta meet this guy.....
May-31-15  houtenton: Again: when you know there must be a winning line, the two basic moves Rxc6 and Qd5 "must be the solution", even more by absence of other acceptable moves. At least that is how I "solve" them most of the time. So I found the first two moves easely based on the priciple above. OK, I sometimes also miss the easy problem of tuesday too.

Then I thought 27.c6 will win quickly, and that finish my work for today (to early maybe).

May-31-15  houtenton: I'm sorry: Rxc6 must be Rxc8 of course.
So: 25.Rxc8 Qxc8 26.Qd5 fe3 27.Nd3 and what can black do? Threat now is 28.c6: Nd7 cannot step away because of Qf7+ and Qe7#.
May-31-15  vajeer: Would 26. Rc7 followed by c6 win too?
May-31-15  houtenton: <vajeer> At the first view it looks like your line (26.Rc7 followed by c6) and my line are winning easier than in the game. No time anymore to work it out. Maybe <patzer2> will still help us in the last hour of the day.
May-31-15
Premium Chessgames Member
  Pedro Fernandez: Hey <Chris>, this puzzle is almost impossible to solve on terms Serper did. At the puzzle position one sees clearly that white possesses a superior position. For instance, 25.Qxb4 "should win" too, and if 25...fxe3 then 26.Qxh4 threatening mate at e7, etc. However if black side can do ...0-0! my variation doesn't work. At first glance I didn't like 25.Rxc8+! since the black bishop on 'c8' is pinned.
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