Sunday, November 22, 2009

Suggestions for Digital Chess Clocks?

I'm getting ready to start playing rated tournaments again, and I've decided to get with the 21st century and replace my analog clock with a digital one. The main features I'm looking for are durability (I'm worried about opponents bashing it around in time trouble) and readability (so I can record the time taken by me and my opponent after every move easily). I'm assuming that all digital clocks allow a time increment, which is another mandatory feature.

I would welcome any suggestions for clocks that fit the bill. Price is a lesser consideration--I want to find a good deal, but I don't want to buy something that's going to break after a few rounds of blitz. Some of these plastic clocks I've been seeing my opponents with lately, such as this and this, just feel like they're too delicate.

Saturday, October 24, 2009

Heisman's "Three Showstoppers"

Last month, Dan Heisman's column at ChessCafe.com ("The Three Show Stoppers") set a lightbulb off for me. Which is odd, because he's discussing issues of time management, piece safety and piece activity that he's written about before. However, these concepts came together to form a "perfect storm" of chess instruction.

A theme of Heisman's is that there are certain basic skills such as time management and playing what Heisman calls "real chess" consistently on every move of the game. The trick, of course, is consistently. If 49 moves out of 50 you play properly, and 1 move out of 50 you launch a stinkbomb of a move because you moved too fast or a piece was hanging, then your chess strength is severely diminished. I think that, for most people, working on improving this aspect of their game will likely produce greater dividends than just about any other chess-related activity.

Easily said, but as the byline of this blog says: "Do as I say, not as I do." It takes gumption to work on this, and if most of your chess is online blitz then you're not going to be able to play "real chess" a la Heisman unless you're pretty gifted. However, in this column Heisman reduces the essentials to three principles:

  • Time Management: not moving too fast or too slow, but using the appropriate amount of time for each move
  • Safety
  • Piece Activity
Quoting Heisman:

As in math, some consistency in base issues is required before anyone can benefit from the multitude of advanced possibilities. From a graphical standpoint the chess bases look something like:

Slow –> Safe –> Active –> Explosion of all other strategies

Therefore, to get the full benefits of the wonderful world of chess strategy, a player should first be able to apply the base issues fairly well. In other words, since the base three issues are such critical “showstoppers” (i.e., chokepoints), we need to at least minimally pass them first before the main learning fun can fully bloom.

I've been pretty good at time management, but only, say, 95% of the time. In both slow and fast games, I'll occasionally toss out a disastrous fast move; in blitz games I'll often take far too long on one particular move rather than pull the trigger and move. Also, even when I ask "Is it safe?" before making a move, I still find that many of my mistakes are obvious shortly after releasing my moved piece.

I've thought for sometime that Blitz just reinforces bad habits, and that it's main useful purpose was to generate chess games that can later be analyzed (check the opening lines, analyze the tactics and blunders, review the endgame, etc.). However, for someone whose problem is with the "three show stoppers", I'm now wondering if these three concepts can be successfully practiced through Blitz at my usual time controls online.

First, a review of time management. If you assume a typical game length of 40 moves, you can calculate, with or without an increment, about how long the game should take and how much time should be spent per move.

If you take the time control in minutes, and add 2/3 of the time increment in seconds, you get the time you have for a 40-move game. For example:

2+12: 2 + 8 = 10 minutes
5+5: 5 + (10/3) = 8 1/3 minutes
22+12: 22 + 8 = 30 minutes

So, if you want to commit to a g/22+12, you should be prepared to spend an hour or more on the game (30 min x 2 players).

As for how much time to spend per move: For 40 moves, each minute on the clock gives you 1.5 seconds per move. So:
g/5: 7.5 s/move
g/5+5: 12.5 s/move
g/2+12: 3 + 12 = 15 s/move
g/22+12: 45 s/move

For my favorite time control of g/2+12, that means I should be spending 15 seconds per move, ideally. It also means that even if the game goes longer and I'm running short on time, I still have 12 seconds to think. That means I can keep up a regular pace of moves without having to change my pace much for longer games.

However, in tournament chess a time delay of 5s is more common. I've started playing g/5+5 instead, which not only replicates real tournament time pressure more closely, but also forces better time management. 15 vs. 12 seconds though doesn't exercise this skill as much...there's not much variation between the regular pace of moves and time trouble. 12.5 vs. 5 seconds is a significant difference, and a player that better paces their moves should have a significant advantage.

At 12 seconds per move, I can't hope to play "real chess" (I can't really play "real chess" even with g/60, or 1.5 min/move), but I can at least force myself to think about Heisman's other two "show stoppers" during that time: safety and activity.

I have noticed in my blitz play that I have a tendency to opt for a fancier, less clear and active continuation than a safer, clearer one. Heisman on the other hand stresses safety over activity. It may be possible to reprogram myself to value safety over activity on a consistent basis even as I play Blitz.

Ideally, I would do all of this but play slower games. I may try to switch to playing 30-minute games instead of multiple blitz games, or play against the computer to practice my thought process. For now, as an experiment I'm trying to apply these "big 3" concepts to my blitz play (as well as my weekly club games), and see if it has a dramatic effect on my blitz rating. If I can consistently manage my time, and within 12 seconds ask "what does my opponent's last move do?" and "is my next move safe?", it should.

Give Heisman's article a read, and ask yourself if the "three showstoppers" are still limiting your chess progress. I think for a lot of club players, the answer is "yes". Fixing this problem won't be easy, but I'm going to try and follow this protocol religiously and try to push myself to the next level.

Sunday, October 4, 2009

Mate in Two

The following Mate in Two problem is from Yusupov's Build Up Your Chess I, and I think it's the hardest mate in two problem I've come across so far.



I'm not going to give away the answer, but it's a good test of your ability to analyze a dense thicket of short variations.

Laszlo Polgar's Chess: 5334 Problems, Combinations, and Games has a ton of mate-in-two problems in it, and I occasionally turn to a random page and try to solve some. Some of them are really devilish, and are good practice for practicing Kotov-like analysis (trying to analyze each branch of a variation once and only once).

I'm going to try and get a couple more chapters of Yusupov's book knocked out this afternoon.

Wednesday, July 15, 2009

I'm In the Driver's Seat

Encountered while surfing: the Advertising Slogan Generator. Here's one that was generated for me:

Everything We Do is Driven by Grandpatzer.

Enter a word for your own slogan:

Generated by the Advertising Slogan Generator. Get more Grandpatzer slogans.


Play around with it and let me know if one tickles your fancy (for me, or you, or whoever).

Wednesday, July 8, 2009

Mate Analysis from Yusupov's BUYC2

Just to give a taste of the level of Yusupov's book, here are the first 6 positions from Chapter 1, with my own, often flawed, analysis. It seems that I am capable of both relatively deep analysis and gross oversights.


I started off well, solving the first position with little difficulty (white to move):


1. Nf6+ Qxf6 2. Bh7+ Kh8 3. Bg6+ (key point: blocks Q from coming back to the defence) Kg8 4. Rh8+ Kxh8 5. Qh5+ Kg8 6. Qh7#

So, after calculating a mate-in-6 I felt pretty good going into the next position (Black to move):


This example revealed a couple weaknesses in how I analyze. First, the two most obvious candidate moves are 1...Qxd1+ and 1...Nf6+ (both the most forcing move possible: a check). I analyzed the latter move first, and when I arrived at a satisfactory answer I stopped there without analyzing 1...Qxd1+. I usually try to keep in mind the old advice "when you've found a good move, look for a better one". However, in tactical puzzles I've noticed a tendency to think, "oh I found the answer" and stop my analysis there when in a real game I would think a bit more.

I analyzed 1... Nf3+ and found that Black wins after 2. Bxf3, 2. Kh1 and 2. Kf1. However, after analyzing 2.Bxf3 I very quickly thought "and 2. Qxf3 is no different". However, 2... Qxd1+ 3. Qxd1 Re1+ doesn't work because of 4. Qxe1 (whereas after 2.Bxf3 and 3.B (or N)xd1 the e1 square isn't covered and 3...Re1 will mate. It's rather shocking that I dismissed 2.Qxf3 as leading to an identical result as 2.Bxf3 with about 1 second of thinking.

Correct is 1...Qxd1+, which the reader can work out leads to mate, e.g. 2. Nxd1 Nf3+ 3. Qxf3 Re1+ 4. Bf1 Rxf1#.

The next position I solved easily. White to move:


1. Qxf4 Bxf4 2. Rxh5 gxh5 3. Rxh5 *

I was then brought back down to earth in the next example. Curiously, I analyzed a double capture on h6 that failed, and missed a different capture on h6 that worked. White to move:


After 1.Rh8+ Kg6 I analyzed 2. Rxh6+ 2... Kxh6 (a secondary oversight: 2... gxh6 would also defend, but ...Kxh6 is stronger) 3. Rh8+ Kg6 4. f5+ exf5 5. Qh6+, which would mate except that there's still a g-pawn: 5... gxh6! -+

Correct, however, is 2. f5+ exf5 3. Qxh6+! because here after 3...gxh6 4. Rag8#

At this point I'm batting .500. I get the next position "half-right" (White to move):


The principal variation was clear to me: 1. Bxf6 Bxf6 2. Qxh7+ Kxh7 3. Rh5+ Kg8 4. Ng6 with mate to follow.

However, I had trouble with 1... gxf6. I calculated 2. Qg4+ Kh8 3. Rd3 Rg8 4. Nxf7#. Alas, 3...Nxe5!-+ defends, as well as 3...fxe5+/=.

The book solutions include both 2. Qh6 (which seems more straightforward, e.g. 2...Nxe5 3. Rh5) and 2. Rh5, e.g. 2...Nxe5 3. Rxh7 Ng6 4. Qh6. If instead 2... fxe5 (so the bishop defends after 3. Rxh7? Bf6), White has 3. Qf5!

I may charitably still been batting .500 after that example, but not after this position. Black to move:


This is another example where I had two moves to consider, and stopped after analyzing just one. I thought I had found a clever tactic with 1... Rh3, and indeed after both 2. gxh3 and 2. g3 Black mates. There was just one little problem: 1...Bxh3. On occasion, I overlook that bishops can indeed move backwards.

Yusupov mentions in the "Candidate Moves" chapter: "Accurately calculating over the distance of the first few moves is more important than the capacity to calculate long variations". This oversight certainly supports that remark.

Correct is 1...Nf3!, which leads to mate.

This should give the reader both an idea of the level of Yusupov's book, and the uphill battle I face in improving my ability to calculate.

Build Up Your Chess 2 by Artur Yusupov

Yusupov has turned a series of chess lessons from his chess academy into a series of books. The first book at the under-1500 Elo crowd; the second is for the 1500-1800 Elo players, and the third book will be for the 1800-2100 Elo level. I'm barely into BUYC2, but so far this book is promising to be just what the doctor ordered.

For a long time I've recognized that one of the most important exercises I should be doing is just analyzing tactical positions at a board, without moving the pieces. The first chapter of mating combinations seems to be tuned to just the right level of difficulty for my needs. However, I would also like to to check out a copy of the first volume as well, because from what I've read on the intertubes it should still be plenty challenging enough).

Unfortunately, I won't be taking this book with me on vacation because I don't want to be packing a chessboard with me. Yusupov is instructing the reader to analyze the positions over a board, write down your analysis, and play the positions out; I agree with that advice and want to use the book accordingly.

For now, I want to give an overview of the contents of the book. I intend to follow up soon with another post featuring some mating problems from the first part of Chapter 1. This is in part to give readers a feel for the level of the book, and in part because some of my mistaken analysis reveals some of my chess weaknesses.

The Table of Contents includes:

1. Mating combinations
2. General endgame principles
3. Combinations involving the back rank
4. General opening principles
5. The double attack
6. Good and bad bishops
7. Candidate moves
8. The centre
9. The pin and the discovered attack
10. Zugzwang
11. Deflection
12. The Greek gift sacrifice
13. Evaluating the position
14. Planning in chess
15. An opening repertoire for White after 1.e4 e5
16. Destroying the castled position
17. an opening repertoire against 1.e4
18. Exchanging
19. Priorities when calculating variations
20. Pawn endings 1
21. Decoying
22. Time in the opening
23. Improving the position of your pieces
24. Pawn endings 2

Plus a final test and recommended books.

Two features immediately strike the eye. The first is the large number and variety of topics, which spans opening, middegame and endgame; tactics, calculation, strategy and endgame technique. The second is the apparent randomness of the order in which the topics are introduced. The first is readily explained: it's the author's intent that, through this series of books, that a student get a well-rounded education and that any gaps in the player's knowledge be filled. As for the second issue, I suspect that there's method in the author's madness. If nothing else, given the length of each lesson (1-2 hours) it would be good to mix it up a little. Plus, some order can be seen in the progression. General opening principles are covered, then the center, then specific opening repertoires, then a discussion on the value of time in the opening.

I will be very interested in the opening material, since the author's approach to developing an opening repertoire seems to match my own. For example, "This is... only an example...You should prepare your repertoire according to your own chess tastes and style. It is very important that you should like and understand the typical positions which result from your chosen opening." I have only skimmed the future sections of the book, but I get the sense the approach taken to studying the opening is "teach a man to fish" rather than "give a man a fish".

I leave for vacation tomorrow, but I'm looking forward to working through this book when I return.




Thursday, July 2, 2009

Winning a R vs. Knight's-Pawn Endgame

I recently had another of my obtain-crushing-advantage-then-screwing-up games. However, I managed to draw instead of lose because my opponent couldn't find the win in a R vs. P endgame. The analysis was interesting, because it showcases an interesting resource that is peculiar to knight pawns.


61...Rb2?= 62. g7 Rb7 63. Kh8 Rxg7 64. Kxg7 1/2-1/2

Instead, both 61...Kg5 and 61...Rh2 win for black. I find the former move the clearest, so I will use that move order.

61... Kg5 62. g7 (else 62. Kg7 Rf6) 62... Rh2! prevents promotion of the pawn 63. Kg8 Kg6 64. Kf8 threatens again to promote Rf2+! 65. Kg8:


65...Rf1

This is the key finesse: Black must capture the pawn via ...Rh7, not ...Rf7, to avoid stalemate: 65...Rf7?? 66.Kh8 Rxg7 is stalemate.

66. Kh8 Rh1+! 67. Kg8 Rh7 and the pawn falls.

After analyzing this game I found this same type of endgame covered in Muller and Lamprecht's Fundamental Chess Endings (Vaulin-Gashimov, Swidnica 1999 on p. 162). In that game, the attacker also missed the best sequence of moves and ended up drawing.