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Kenneth Regan vs Dan Cramling
Baerum (1980), Baerum, Norway, rd 5
Alekhine Defense: Two Pawn Attack. Lasker Variation (B02)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Feb-25-21
Premium Chessgames Member
  Phony Benoni: Hey, Everybody! New puzzle! Thanks to whoever straightened this out.
Feb-25-21  mel gibson: I saw that:

Stockfish 12 says:

18. Rxe6+

(18. Rxe6+
(♖e1xe6+ ♗d7xe6 ♗d3-b5+ ♗e6-d7 ♖a1-e1+ ♗f8-e7 ♕g5xg7 ♖h8-f8 ♗f4-h6 ♗d7xb5 ♕g7xf8+ ♔e8-d7 ♕f8xf7 ♔d7-c8 ♕f7xe7 ♕d8xe7 ♖e1xe7 a7-a5 ♗h6-f4 h5-h4 c3-c4 ♗b5-a4 ♖e7-h7 ♖a8-a6 ♖h7xh4 ♖a6-c6 ♖h4-h8+ ♔c8-d7 ♗f4-e3 ♖c6xc4 ♖h8-a8 b7-b6 ♖a8-a6 b6-b5 ♖a6xa5 ♗a4-c2 h2-h4 b5-b4 h4-h5 ♖c4-h4 ♖a5-d5+ ♔d7-e8 ♖d5-c5 ♗c2-b1 ♖c5-b5 ♖h4xh5 ♖b5xb4 ♗b1xa2 ♖b4-b8+ ♔e8-d7 f2-f3 ♗a2-c4 ♖b8-b7+ ♔d7-e6) +5.33/41 133)

score for White +5.33 depth 41.

Feb-25-21  phantasmagorium: Whay not 20... Be7? I cannot see anything especially devastating after 21. Bd6 0-0. Or 21. Qxg7 Rf8 22. Bd6 Bxb5.
Feb-25-21
Premium Chessgames Member
  An Englishman: Good Evening: Thanks for the fix, CG! Had started to worry that I would finish the week at 0/0 with 7 known.
Feb-25-21  Walter Glattke: 3 tempi for black ... Looks like an exhibition match ... Findung at the first website in Blitz a piece win by 18.Rxe6+ Bxe6 19.Bb5+ Bd7 20. Re1+ Be7 21.Bd6 0-0 22.Bxe7 Qe8 23.Bxf8? (Qxf8? Bxd7) now 23.-Qxe1#, hence 23.Bxd7 Qxd7 24.Bxf8 Rxf8 25. Qxh5 Little white advantage then so Schwitz (sweat) instead of Blitz (Flash, quick chess) they played 20.-Qe7 (21. Rxe7+Bxe7 22.Qxg7 Rf8) 21.Bxd7+ Kxd7 22.Qb5+ Kc8 23.Qf5+ Qe6 24.Rxe6 fxe6 25.Qxe6+ Kd8 26.Qd5+ Ke8 27.Bg5 threatens Qe6+ 27.-Ba3 28.Qxb7 28.-Rd8 29.Bxd8 0-0 (29.-Kxd8 30.Qb8+ Kd7 31.Qxh8) decisive material, QPP for R, it need a scheitz/ sweat to find this, looks a bit like a "lucky punch" (23.-Kd8!? 24.Rd1+!/23.-Qd7? 24.Re8#)
Feb-25-21
Premium Chessgames Member
  al wazir: <phantasmagorium: Whay not 20... Be7? I cannot see anything especially devastating after 21. Bd6 0-0.>

21. Qxg7 Rf8 (21...Bxb5 22. Qxh8+ Kd7 23. Rd1+) 22. Bd6 Bxb5 23. Rxe7+ Qxe7 24. Bxe7 Kxe7 25. Qe5+.

Much the same outcome as in the game line.

Feb-25-21
Premium Chessgames Member
  agb2002: White is one pawn down.

Black threatens Qxg5.

The first move that comes to mind is 18.Rxe6+:

A) 18... fxe6 19.Bg6#.

B) 18... Bxe6 19.Bb5+ Bd7 20.Re1+ Be7 21.Bd6

B.1) 21... Bxb5 22.Rxe7+ Kf8 (22... Qxe7 23.Qxe7#) 23.Rd7+ Kg8 (23... Ke8 24.Rxd8+ Rxd8 25.Qxe7#) 24.Rxd8+ Rxd8 (24... Kh7 25.Qxh5#) 25.Qxd8+ wins decisive material.

B.2) 21... f6 22.Qg6+ Kf8 23.Rxf6+ gxf6 (23... Kg8 24.Bc4+ Be6 25.Bxe6#) 24.Qxf6+ Ke8 (24... Kg8 25.Qg6+ as in this line) 25.Qg6+ Kf8 26.Bc4 Qe8 27.Qf6+ Qf7 28.Qxf7#.

Feb-25-21  Brenin: A couple of hours later than usual, with CG not responding to provide my usual breakfast accompaniment, I find an excellent new (!) POTD. The first three moves 18 Rxe6+ Bxe6 19 Bb5+ Bd7 20 Re1+ are hard to resist, and then one has to check that neither 20 ... Be7 21 Qxg7 nor 20 ... Qe7 21 Bxd7+ (as played) leads to safety for Black. Thank you CG!
Feb-25-21
Premium Chessgames Member
  agb2002: I made a mess in my line B.2: 22.Qxg7 and mate soon.

Also, I forgot B.3) 21... O-O 22.Bxe7 Qb6 (22... Qc7 23.Bf6 and mate soon) 23.Bxd7 with a winning position.

Feb-25-21  saturn2: I took 18 Rxe6+ Bxe6  (fxe6 and Le7 wirse)19. Bb5+ (remove the attacked Bd3 with check)Bd7 20. Re1+ Be7 21. Bd6 

21...Bxb5 22. Rxe7 or
21...Kf8 22.Bxe7 lose queen

Feb-25-21  TheaN: <18.Rxe6 Bxe6 (fxg6 19.Bg6#)> and 18....Be7 is a worse version of the main line. <19.Bb5+ Bd7 20.Re1+>.

Here I kind of discarded Qe7 as being lost for Black. Of course, White has invested a rook so it'd be Q:2R, but in these positions where White can force the king to move, the rooks are rather helpless.

Instead, <20....Be7 21.Qxg7> and White creates just enough time to get in a similar situation. <21....Rf8> Bxb5 immediately opens up the d-file, as after 22.Qxh8+ Kd7 23.Rd1+ +-. 22.Bh6 and 22.Bd6 are similar, but after the former 22....Bxb5 23.Qxf8+ Kd7 24.Qxf7, White keeps quite a bit of material on the board. <22.Bd6 Bxb5 23.Rxe7+ Qxe7 24.Bxe7 Kxe7 25.Qe5+ Kd8 26.Qxb5 +-> and White simplifies to the following end game.


click for larger view

Uncoordinated rooks and very loose pawns, so this is a rather straightforward win for White.

Feb-25-21
Premium Chessgames Member
  chrisowen: Flushy avidus Rxe6 goodness arrive fof backus bon mitigate avidus von guv flushy piston it meagre labelled it i von guv dent bent lent wintry within quack crock its pry make it zulu don’t gotcha within bluffs avidus qd8 gadfly against aquakong qc3 flushy von guv abridge axled it i von guv afford gap plugger qd8 bad bin avidus tot add gongha deal it gong avidus wham it code Rxe6 etc;
Feb-25-21
Premium Chessgames Member
  chrisowen: I swear to god shake rattle and hum no?
Feb-25-21
Premium Chessgames Member
  chrisowen: Referee on the rocks and no?
Feb-25-21  King.Arthur.Brazil: The first moves seems direct: 18. ♖xe6+ ♗xe6 (Since 18...fxe6 19. Bg6#). Then 19. ♗b5+ ♗d7. (Or else, lose the ♕ with {Qd7). Also, the column is used to attack: 20. ♖e1+ ♗e7. I guess this is clear for everyone. Now, what? Then, one (as me) could take a wrong way, thinking about 21. ♗c7 ♕xc7 22. ♕xe7# or 21...♗xb5 22. ♗xd8 ♔xd8 23. ♖xe7 ♔c8 24. ♕e5 with checkmate next. However, this jewelry vanishes by 21...O-O. Then, White cannot recover the material, as A) 22. ♗xd8 ♗xg5 after choosing the ♗: 23. ♗xg5 ♗xb5 or 23. ♗xd7 ♗xd8 White lost a ♖; B) 22. ♖xe7 ♕xe7 23. ♕xe7 ♗xb5 and Black has 2♖ by ♕. Note that: 23... ♖fe8 is not so good because of 24.♕c5 ♗xb5 25.h3 ♖e1+ 26. ♔h2 ♗c6... and Black has a counter-attack. Bad is 24...♖e1+ 25. ♗f1 a6 26. f3 ♗b5 27. c4 ♖c1 28. ♔f2 ... when White escapes. If 22. ♕xe7? ♕xe7 23. ♖xe7 ♗xb5 with a ♖ advantage. Therefore, the continuation must be 21. ♗d6. Following, {21...Bxb5 22. Rxe7+ (If 22...♕xe7? 23. ♕xe7#), 22...♔f8 23. ♖d7+ (Also 23...♔e8? 24. ♖xd8+ ♖xd8 25. ♕e7#). 23...♔g8 24. ♖xd8+ ♖xd8 25. ♕xd8+ ♔h7 26. ♕g5 and White has a ♕ by a ♖ and keep on attacking next with possible 26... ♗c6 27. ♕xh5+ ♔g8 28. ♕g4 ++. Time to check out.
Feb-25-21  Refused: 18.Rxe6 has to work.
18...Bxe6 19.Bb5+ Bd7 20.Re1+
a.)20...Be7 21.Bd6+-
b.)20...Qe7 21.Bxd7+ Kxd7 22.Qb5 looks horrible.
Feb-25-21  Brenin: After 18 Rxe6+ Bxe6 19 Bb5+ Bd7 20 Re1+ Be7, White's choice is between 21 Qxg7 and 21 Bd6. The former, after 21 ... Rf8 22 Bd6 Bxb5 23 Rxe7+ Qxe7 24 Bxe7 Kxe7 25 Qe5+ Kd8 gives the position shown above by <TheaN>, with White having a clear win, but still some work to do. The latter, after 21 ... 0-0 22 Bxe7 Re8 23 Bxd8 Rxe1+ 24 Bf1 Bb5 25 Qxb5 Rxd8 26 Qxb7 Rdd1, allows Black to regain material (Q+B for 2R) on f1, and go into a K and P endgame a P down, White having a passed c-pawn, so a probable (and quieter) win for White.

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