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Feb-29-04
 | | crafty: 22.  xb2 c3+ 23. c1 cxd2+ 24.  xd2  c8 25. b4  d8  (eval -1.28; depth 12 ply; 1000M nodes) |
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Feb-29-04
 | | Shadout Mapes: 22.Kxb2 c3+ 23.Kxc3 Nc4+ 24.Kxc4 Qb5# |
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Feb-29-04
 | | patzer2: Apparently, White declined the sacrifice offer because he feared the pretty combination 21...Rxb2 22. Kxb2 c3+ 23. Kxc3?? Nc4+! 24. Bd4 <24. Kxc4 Qb5#> Nxd6  .Although White can avoid this worst case scenario and the game continuation shows declining the gambit is hopeless, accepting the gambit also loses quickly. Fritz 8 calculates a Black win after 21...Rxb2 22. Kxb2 c3+ 23. Kc1 cxd2+ 24. Bxd2 Qc8 25. Bb4 a5 26. Bxa5 Nc4 27. Qc7 Qa6 28. Rd1 Nxa5 29. Bd3 Qf6 (-2.09 @ 16 depth & 723kN/s). In the final Fritz 8 analyzed position, White's two extra pawns are no where near enough compensation for Black's extra piece and well developed attack. White is busted with straight-forward, active piece development against his weakened king position. |
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Feb-29-04
 | | Sneaky: What about 22.xb2 c3+ 23.b1 |
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Feb-29-04
| | Lawrence: Sneaky, 23...cxd2 eval -2.28 (Junior 8) |
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| Feb-29-04 | | Egghead: Forgot it was Sunday. :) |
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Feb-29-04
| | patzer2: If 22. Kxb2 c3+ <23. Kb1>, Fritz 8 calculates a forced win for Black after 23...cxd2 24. Bd3 a5! (-3.69 @ 15/44 depth & 734kN/s). |
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| Feb-29-04 | | socrates: What about just playing 21...c3!? immediately, threatening the rook, the b2 pawn, and the family fork with Nc4? |
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Feb-29-04
| | crafty: 21...c3 22. bxc3  c4 23. xa6 xe3 24. a4 e5 25. xb5 (eval -1.14; depth 14 ply; 500M nodes) |
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Feb-29-04
 | | kevin86: Black's pieces leap out of nowhere to trap white's king-note:is it because it's leap day that black stages a king side attack on the queenside? (This used to be called Sadie Hawkins day in which girls invited guys to a party)Now,of course,it is regular that both guys and girls do the inviting,it used to be only guys. |
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| Feb-29-04 | | worktobedestroyed: what about
22. Kxb2 Nd3+ 23. Kb1 Qb5+ 24. Bb3
?? |
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| Feb-29-04 | | ezumpf: Why doesn't white take the knight on 25? |
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Feb-29-04
 | | Benzol: 25.gxf3 xd4; 26.xd4 f4+; 27.d1 d2# |
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Feb-29-04
| | TrueFiendish: I agree with worktobedestroyed. Isn't it 21...Rxb2 22.Kxb2 Nc4+ 23.Kb1 Qb5+? Wouldn't want to argue with a computer, though... |
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Feb-29-04
| | TrueFiendish: Sorry! I meant ...Nd3+. Oops. |
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| Jun-26-11 | | Antiochus: Double check, easily... |
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Jun-26-11
 | | dzechiel: Black to move (21...?). White is up a pawn. "Insane." All of black's pieces seem to be aiming at b2. The rook, the bishop (through the knight), the pawn (after moving to c3) and even the knight after moving to d3. Listing candidate moves, it would seem that one of these must be the key: - 21...Rxb2
- 21...c3
- 21...Nd3+
The knight move is a check, so at first blush it seems the most forcing, but the pawn move not only attacks the rook and the pawn on b2, it also vacates c4 as a good square for the knight. The more I look the more I like the pawn move. Let's check it out. 21...c3
The rook is threatened by the pawn, but even if white plays 22 bxc3 black gets to play 22...Nc4, on the queen, the rook and the bishop. I think white needs to move the rook, and probably to e2 to defend the bishop. 22 Re2 cxb2+
The king is on the move, but where to?
23 Kb1
On 23 Kd1 black gets to play 23...b1=Q+ 24 Bxb1 Rxb1+ 25 Ke2 Rxh1 picking up serious material. And 23 Kd2 allows the knight fork on c4. 23...Nc4 24 Qxa6
This is vital to protect a3. If the queen moves elsewhere black winds it up with 24...Na3#. The problem with this line is it's not "insane." So either I have wandered down a side variation that is simple enough for me to find quickly, or (even worse) I have miscalculated and overlooked a much better move for white. Both cases are bad, I'm going to check and see which one I have tumbled into. =====
I'm not sure what's wrong with my line. I suspect it probably just doesn't win. |
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Jun-26-11
 | | al wazir: <21. Rxb2 (I got that far) 22. Qxa6 Qb8> 23. Qd6. Now what? If 23...c3, then 24.Qxb8, blunting the attack. If 23...Qxd6, then 24. Rxd6 Nd3+ 25. Kd2. |
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| Jun-26-11 | | rilkefan: Thought about Nxf3 for a second and then Nd3+ but I'm drawn to 22...Rxb2. I think white can't take and live, so I'll stand pat with the damage to white's king position. |
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Jun-26-11
 | | sevenseaman: The point of impact seems to be b2.
Thoughtways
1. The N at e5 has to clear out
or be in a dangerous position for a disco.
2. Rook sac looks on with Q at e8 handy to move to b5 or b8. Lines
A. 21...Rxb2 22.Kxb2 Nd3++ curtains. So White will not take the R at b2 B. 21...Rxb2 22. Qxa6 (moving the K to d1 is no better)22...Nd3+
23. Bxd3 cxd3 24. Qa3 Qb8 25. Rxd3 Rc8+ 26. Rc3 Bxc3 0-1 soon. 
click for larger viewLet us see how close have I gone.
~~~~~~~~~~~~~~~
Quite different but basics match. We shall see which was the
best play. |
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Jun-26-11
 | | diagonalley: i reckon OTB 21....c3 would be pretty compelling.. i wouldn't burn much precious time looking for better |
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| Jun-26-11 | | ColeTrane: essentially saying "Get off that square!" to the white Q setting up the sack. How bout Nxf3 on move 24!?! |
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Jun-26-11
| | sevenseaman: I found a small challenge in my line;
B. 21...Rxb2 22. Qxa6 (moving the K to d1 is no better)22...Nd3+
23. Bxd3 cxd3 24. Qa3 Qb8 25. Rxd3 Rc8+ 26. Rc3 Bxc3 0-1 On move 24. White can respond
click for larger view<24. Rxb2>, the game then goes; 24...Bxb2+ 25. Kxb2 Qe5+ 26. Kc1 Qc3+ 27. Kd1 Qc2+ 28. Ke1 Qe2# |
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Jun-26-11
 | | David2009: H Ree vs A J Mestel, 1983 Black 21...? Black has the opportunity to sacrifice a Rook for a double check. Try it: 21...Rxb2
22. Kxb2 Nd3+ 23.Kb1 Qb5+ 24.Bb3 cxb3 25.Qxd3 bxa2+ 26.Kxa2 Qa4+ 27.Qa3 looks fine for White.
Instead try 22...c3+ 23 Kxc3 Nc5+ 24 Kxc4? Qg5# so White must give up material. Time to
check:
====
Here's the pre-puzzle position:
click for larger view H Ree vs A J Mestel 1983 21?
Crafty End Game Trainer link:http://www.chessvideos.tv/endgame-t...
White plays Qxd6 and the EGT replies 22...Qc8! Is this an alternative solution? Here's an EGT link to the game line at move 22:
http://www.chessvideos.tv/endgame-t... : it verifies that taking the Rook looks like a dead loss. Enjoy defending the position! |
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Jun-26-11
 | | morfishine: <Patriot> I left you a message at my forum as this falls under the category of being "Off Topic" <Once> Feel free to read my response to <Patriot> at my forum concerning <LMAJ> <LMAJ> You are welcome to read my response to <Patriot> at my forum |
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