Puzzles needed for tactics trainer

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Daeru

Yea, luckily my opponent didn't see it :P

EndgameStudent

Thankyou Tapani

5th puzzle http://www.chess.com/tactics/server.html?id=391957

Unfortunately the 0.3-1.0 rule still applies when mate is possible.

Legopirate, you really need to use an engine to check your puzzles. At no stage in the puzzle does white have a significant advantage.

EndgameStudent

The puzzle can be from your other games (eg.other website or OTB) , or variations.This site's engine is a good start but I'd use a stronger engine to check it.

I've expanded and altered the criteria again in the first posting to include answers to everyone's questions. 

Daeru

Here is another win my opponent missed :D

LegoPirate
katonas wrote:

Legopirate, you really need to use an engine to check your puzzles. At no stage in the puzzle does white have a significant advantage.

Katonas, you really need to look at puzzles more before criticizing them. If you looked a bit more you might have seen that I don't have a significant advantage because I started out a piece down. The task is to equalize so you have some chance of winning, or at least drawing.

You said that there could be puzzles with the solution move +0 and the next best move -1.6. I'd estimate my solution to be more than 0 because I would be ahead an exchange at the end. And the next best move would be about -3 because I'd be down a knight.

EndgameStudent

Legopirate. I don't recall any significant difference between the best and next best moves at any stage of your puzzle suggesting there was more than one way to equalize. You use the word estimate, so I suspect you hadn't checked the puzzle with an engine. As you have deleted the puzzle you have prevented anyone from looking at your puzzle more as you suggested.

LegoPirate

 "I don't recall any significant difference between the best and next best moves at any stage of your puzzle suggesting there was more than one way to equalize."

Well then, what is the other way to equalize?

"You use the word estimate, so I suspect you hadn't checked the puzzle with an engine."

My engine doesn't work.

"As you have deleted the puzzle you have prevented anyone from looking at your puzzle more as you suggested."

http://www.chess.com/livechess/game.html?id=316809492

It's from move 19 to move 21.

EndgameStudent

I have used ! for moves the computer thinks are the best available, and ? for poor moves when a better move is available. Unfortunately Legopirate I couldn't see any workable puzzle. 

LazyChessPlayer3201

Well not sure if this fits the criteria, but here is a puzzle from a OTB game I played. Computers may suggest other moves for black, but nothing is really much better. Here is a link where I posted the whole game  http://www.chess.com/forum/view/fun-with-chess/free-game-analyse

MoonlessNight
katonas wrote:

The puzzle can be from your other games (eg.other website or OTB) , or variations.This site's engine is a good start but I'd use a stronger engine to check it.

I've expanded and altered the criteria again in the first posting to include answers to everyone's questions. 

have you looked at my tactics?

EndgameStudent

Nate, I was waiting for you to let me know when you'd checked your puzzles with an engine to see if they were eligible according to the criteria.

Lazychessplayer, I don't have access to an engine at the moment. Are you able to check your puzzle for competing lines etc ?

LazyChessPlayer3201

I have checked my game with a engine more then 10 times already. After Deep analysis I couldn't find a better move for white in every position.

The evaluation changes more then +2.00 (Infact the computer starts suggesting random moves for black)

Here is some analysis

from the position shown the computer suggest a night move, but after the move I played the analysis starts to change, thats cause it's the only winning line. At first the computer said -0.98, which is not in my favour, but after all my moves, which are very forcing, the analysis started to change. After I played Bh6, the computer suggested Qd8 itself, but now the analysis reads +12.55 in my favour. The computer suggested fxg6 which is strong, but not as forcing and strong as my continuation. Then the computer suggested the moves played by black (Doesn't reccomend my moves) after my move Qg5 the analysis +21.03 for me. Black choices are huge material lose or he gets mated like in the line I showed.

EndgameStudent

Thanks 3201, I'll have a proper look as soon as I can.

Daeru

Did you look at the last one I sent?

EndgameStudent

8th puzzle http://www.chess.com/tactics/server.html?id=368957 Thankyou LazyChessPlayer3201. Next time please try to exclude moves when there is more than one winning move, and on the whole choose the best move for the computer. Well done.

7th puzzle http://www.chess.com/tactics/server.html?id=416665

and

6th puzzle http://www.chess.com/tactics/server.html?id=197285 Thankyou Daeru (two for the price of one!). Sorry for the delay, I hadn't realized you'd sent another puzzle until last night. 

piphilologist

Heres one from an otb game of mine last year

, black just played e2-e1=Q?? in time-trouble. I think these moves are the only ones to draw but i havent got an engine to check with

Ben_Dubuque

here is one from a sideline I found 2 seconds after I made the wrong move. it wasn't hope chess either accepting and declining the offered material lost.

is it ok to post sidelines that cannot happen anymore from games that are still ongoing. if not I can delete this post and find a different one.

Ben_Dubuque

here is another one. I used a sideline for black though because what black played in game was not his best defence.

msjenned

 

 

 

 

 

 

Like this one:

http://www.chess.com/livechess/game.html?id=318230765

Ben_Dubuque

the first move in solution is Bg5

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