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|Apr-24-17|| ||lost in space: I saw that 15. Nf5! wins, but much more interesting was why 15. Qg5 not|
15. Qg5? Nxd4 16. Qh6
(16. h3 Ne2+ 17. Qf4+ and it is black to win)
16...Ne2+ 17. Kf1 Ng3+ 18. Kg1 Qf1+ 19. Rxf1 Ne2#
click for larger view
|Apr-24-17|| ||aporia: 15. Nxc6 also wins, right?
If 15. ... QxQ, then 16. Ne7++
If 15. ... bxc6, then 16. QxQ
If 15. ... Qxc6, then the black Queen cannot get back in the game to stop Q-g5, h6, g7++
It didn't strike me as "very easy," though.
|Apr-24-17|| ||Walter Glattke: After 15.Nxc6 Qxc6 black one move too slow for Rd8/Qe8/Qf8.|
|Apr-24-17|| ||lost in space: Yes, also 15. Nxc6 wins|
|Apr-24-17|| ||jith1207: Royal checkmate!|
|Apr-24-17|| ||saturn2: Nf5 wins the queen|
|Apr-24-17|| ||stst: N-sac..
15.Nf5 will make Black very uncomfortable...
(A).......QxQ, 16.Nh6 fork and mate.
(B).......exN, 16.QxQ ... rest easy
(C).......Qc1+ meaningless, 16.RxQ...
|Apr-24-17|| ||diagonalley: <aporia> ... agreed... i went that way too!|
|Apr-24-17|| ||agb2002: White is one pawn down.
Black threatens Qxd4.
The black queen is defenseless and Nh6 would be mate. Therefore, 15.Nf5:
A) 15... Qxg4 16.Nh6#.
B) 15... Nxe5 16.Ne7(h6)#.
C) 15... exf5 16.Qxc4 + - [Q vs n].
|Apr-24-17|| ||AlicesKnight: Moving the N to threaten mate and attack the Black Q is the answer; 15.Nf5. The position after move 8 is quoted anonymously in Abrahams' "Chess Mind" - it's unclear if he saw it as a game or an analysis.|
|Apr-24-17|| ||leRevenant: I close ranks with APORIA & DIAGONALLEY.|
|Apr-24-17|| ||cocker: FRITZ prefers 15 Nxc6|
|Apr-24-17|| ||morfishine: <15.Nf5>|
|Apr-24-17|| ||whiteshark: <15.Nf5!!>, and that's it.|
|Apr-24-17|| ||zb2cr: I went the 15. Nxc6 route as well.|
|Apr-24-17|| ||mel gibson: The computer says a different move but
it's the same idea.
15. Nf5 (15. Nxc6 (♘d4xc6 ♕c4xc6 ♕g4-f4 ♕c6-c3 ♖a1-f1 ♕c3xe5
♗f6xe5 f7-f6 ♗e5xf6 ♗c8-d7 ♕f4-c7 ♖f8xf6 ♕c7xd7 ♖a8-f8 ♕d7xb7 ♖f8-f7 ♕b7-b5
♔g8-g7 f2-f3 ♖f6-f5 ♕b5-b2+ e6-e5 ♖f1-c1 ♖f7-e7 ♖c1-c5 ♔g7-g8 ♕b2-b4 ♔g8-g7
♕b4-b5 ♔g7-f6 ♔g1-f2) +10.45/15 89)
score +10.45 depth 15
|Apr-24-17|| ||xela: There's a cute variation earlier in the game (thanks, Stockfish!): instead of 11 Kf1, the move 11 Qd2 is nearly as good, because black can't accept the double rook sacrifice: 11 ... Qxa1+ 12 Ke2 Qxh1 13 Nxe6 with a winning position.|
|Apr-24-17|| ||malt: 15.Nf5 and 16.Nh6#|
|Apr-24-17|| ||Walter Glattke: To the smothered mate of lost in space I found, that 15.Qg5 always lose after 15.-Nxd4, so with 16.Re1 Ne2+ 17.Rxe2 Qxe2 18.g3 Qh5 or maybe 16.g3 Nf3+ or
16.h3 Ne2+ as shown, but still 16.-Ne6
|Apr-24-17|| ||chrisowen: Jags f5s feeler lake vent wham f5s fausts hand luv and d4 crude auld taurus bull gaunt us call i wag one von key jags drive vows lick boot
vims hang q mew flip file i few good men ever yup oz v its v rien checks vivas its riven check ways vint o wo coys hive wine vim rinks hark crank vis yos enrich vows kyoto worn heck vinos wry ivy worn nicker vow vices hon wry neck why visor wrecks hon ivy covens why vim irk why risk cove whys rink f5s feeler lake jags goes good drive relic luck boot vims thin
hung hang q am me then marquis new flip files f6s fluffus file f5s whiff flip pull yup yo z v it ok viva guv u over u cuff 14...Nc6 ugly o cuffash 10 auld taurus bull f5s feeler lake fausts hand why over u cull 14...Qc3 um coccyx i vim equate auld taurus bull u focus 15.Nf5 feeler lake vent wham f5s fausts hand luv and crude auld taurus bull gaunt us call i wag one von jags drive vows off fawn fangus famous faxlag live f5s filers flash huff flush gulch hug hang huff gaff guff feel like fausts hand and c4 crude auld taurus bull gaunt us call i wag one von jags drive vows mama man malt us bam cam magazine plans mud lake vim goods guffaws want ermine key vow bottle bap rice vide famine huff cuff famous wads tree vent ramp rump balance dux alive luv and balance rides afar weight rove road fag gaff focus hi vim band mundane key ulterior motive das dusk dual it aloof file; |
vivas hark hunt hurt gag hug gang hung hang cad cud fad daffy duck darcy duff focus hi key iffy coccyx i vim equate taurus bull u focus hive cad dangs ums had goods feeler lake hi jags f5s feeler;
|Apr-24-17|| ||Walter Glattke: Oh, sorry, 15.Qg5? Nxd4 16.Qh6 Nf5!
16.h3 h6 17.Qxh6 Nf5 18.Qd2 Kh7, of course Ne6 is impossible.
|Apr-24-17|| ||patzer2: Here's my look at today's Monday puzzle position (15. ?) and game with the opening explorer and Deep Fritz 15:|
<1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Bb4+ 5. Nc3 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4 Qa5> A slightly better alternative IMO is the current popular move 8...Bxc6 = as in the drawn games A Giri vs Aronian, 2015 and
A Giri vs Harikrishna, 2017.
<9. Bxf6 Bxc3+ 10. bxc3 Qxc3+ 11. Kf1 Qxc4+> The popular alternative and my preference here is 11...gxf6 as in Black's win in Hracek vs Wang Hao, 2013.
<12. Kg1 O-O?> Black is probably lost after this move. Instead, the second player can stay in the fight with 12... Bd7 13. Rc1 Qb4 14. Bxg7 Rg8 15. Bf6 Rg6 16. a3 Qa5 17. Nb3 Qb6 18. Bh4 Na6 19. h3 Bc6 20. Nd2 Qd4 = to .
Another playable alternative here is 12...Nd7 as in the drawn correspondence game Z Caputto vs S Letic, 1962.
<13. Qg4 g6 14. e5 Nc6??> This blunder loses the Queen after 15. Nf5! Black can put up more resistance with 14...Qc5, but is
probably still losing after 15...Qc5 15. Qf4 Re8 16. Nb5 Nd7 17. Rc1 Qf8 18. Nc7 Nxf6 19. exf6 e5 20. Qa4 Bf5 21. Nxe8 Rxe8 22. h4 to .
<15. Nf5! 1-0> This
solves the Monday Apr 24, 2017 chessgames.com puzzle as White wins the Queen or mates next move.
White can also win with 15. Nxc6 as 15...Qxc6 is met 16. Qf4 Qc3 17. Rc1 Qb2 18. Qh6 Qxc1+ 19. Qxc1 (#9, Deep Fritz 15 @ 31 depth).
|Apr-24-17|| ||leRevenant: <cocker: FRITZ prefers 15 Nxc6>
Well then FRITZ is stupid, for a machine.|
|Apr-24-17|| ||crwynn: Alekhine plays a very modern-looking opening in today's puzzle.|
|Apr-25-17|| ||cocker: <leRevenant> Don't understand your comment. 15 Nf5 wins Black's queen for a knight. 15 Nxc6 wins Black's queen for nothing, and finishes game quicker.|
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