Bizarre Computer Analysis

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Check the computer's advice on the following moves ('!' indicates really egregious advice):

6!,13,23!,24!,26,28!

bondiggity

Did you look over the lines offered:

 

Move 6: Correct analysis, black can't play 6...Bxd1 due to 7. Bf7#. Best response is 6...dxe5 7. Qxg4 exd4; where you have destroyed blacks defenses and will probably win back the d-pawn. You have a strong attack on black's uncastled king. 

Move 13: Iffy analysis; they look relatively equal, the benefit from 13. Qh5+ g6 14. Qh3 is that if you can keep your opponent from castling long (which shouldn't be too hard), his kingside is now weaker. Maybe the reason is that after 13. Qg4 h5! 14. Qh3 h4 15. f4 hxg3 16. Qxh8 O-O-O; although down material a safer position for black? I don't know I'd say the computer is splitting hairs on this decision.

Move 23: Correct analysis. Both are strong moves but Rxd4+ seems to decided the game on the spot. 23. Rxd4+ exd4 24. Qd5+ Qd6 25. Qxa8+; not really a rook sac since you win your rook back immediately, as well as a pawn and the black king has a shattered defense. Seems correct to me. 

 

Move 24: Correct for the same reasons as move 23, although now stronger since you have control of the c-file and your rook can easily come into the attack. ex) 24. Rxd4 exd4 25. Qd5+ Qd6 26. Qxa8+ Ke7 27. Rc6+; now you have all sorts of material threats and mating threats. I think its safe to say game over with no major blunders on your part. You can see how black is suffering due to his failure to complete development. 

Move 26: Sort of splitting hairs, you are already winning by so much either path you'll still be decisively up. The reason I think the queen trade is preferred is because: 26. Qxd7 Qxd7 27. Rc7 Kd8 28. Bxa8. Now you have the king trapped on the 8th rank and you can start thinking of mating ideas with the 2 rooks. 

Move 28: 28. Rc8+ Kf7 29. Bd5+ Ke7 30. R1c7 Kd6 31. Be4 Rg6!; lol best stall 32. Ra7 Rxg2+ 33. Kxg2 any move 33. Rc6# Looks like a mate in six to me, where's the mate in 2?

 

Moral of the story, the analysis offers lines of play which it seems you have ignored. Most of the information is in those lines of play so I suggest you read them when you get games analyzed. 

spoiler_alert

Did you look over the lines offered

No I did not see it was giving an entire alternate line there so thanks for pointing that out.

spoiler_alert

I see your point about why his taking my queen would be mate for him on the next move.  (and thanks for pointing this out as the computer does not offer suboptimal lines for black.)  Wonder if under time constraints I would have ever played out the line in my mind of "wonder what happens of I just let him take my queen there early in the game."

Also your point about the rook sacrifice only being temporary-  At that point in the game, when the outcome looks inevitable would I bother playing out a line in my mind that looks like I sack my rook.  Well maybe by the time I get to 1400 I will.

I was mistaken about the mate in 2.  Thanks for your comments.

bondiggity

Yeah no problem. It all really depends on the amount of time you have. If you are playing under long time controls or a correspondence game you have time to look around and try to find the absolutely best continuation. However Its perfectly understandable to miss those lines when playing blitz on live chess. Also it was much easier for me to find these knowing that they were there. It's much harder in the game when you don't know that there is a tactical justification for a move. 

 

Nevertheless, good game and congrats on your win. You did a great job of punishing your opponent for poor development. His king never found safety, he never connected his rooks and never developed his dark squared bishop and you punished him with a nice attack on the lights squares which he couldn't defend with his queen alone.