Rooks On The Open File

Activity does matter in chess and when it comes to semi open games you need to pay attention to the open file to help the activity of your rooks. If your rooks can control that file, most of the time the position will favour you. But controlling the open file is not enough; you must also stop your opponent from neutralizing its effect, create some targets on it and ideally some penetration squares.

Anatoly Karpov against Boris Spassky, 1974


Q: In the position above, Spassky’s last move was …Be7 threatening to play …Rd8 after which White wouldn’t have any serious advantage. How can he stop Black?
A: Karpov did it as follows:

1.Qe6!

Threatening Rd7.

1…Rad8

Almost forced as if …Nb8 then the rook on a8 is shut in.

2. Rxd8!! Bxd8

If 2…Rxd8 then 3 .Nxe5 is followed by penetration via f7 square. Though it’s worth considering 3…Qc7, a good calculation exercise.

3.Rd1 Nb8

Forced.

4.Bc5 Ra8

What else?

5.Rxd8!

Followed by Be7, so Spassky resigned.

The following instructive game of Peter Svidler was played in 2007 against Shakhriyar Mamedyarov, and provides a great illustration of our theme. After Mamedyarov’s 18 . e4 and 19 Re1?! he was never in the game:

Ashvin Chauhan.

Quick Decisions

“Choices are the hinges of destiny”
Pythagoras

In April we held the BC Championship qualifier for the continental final of Susan Polgar Foundation Girls Invitational 2017 in St. Louis. It is the second edition for us and the 14th edition for the continental final. This is a tournament exclusively for girls and over the years has helped discover promising talents, plus launch the career of many talented girls in North America. The format for us locally is 5 rounds Swiss or round robin (based on the number of entries) with the games being played under active time control (30 minutes per player, no increment). First place clear or after tie breaks qualifies to St. Louis. The tie break system is a written puzzles test consisting of solving 10 puzzles in 10 minutes or less. We have not had a tie so far, but each time the winner chose to take the test anyway just for fun.

Not sure how many of you are playing 30 minutes per player. This is a good option to play online. There is a decent amount of time to think about what you are doing, as well as it ends relatively quickly; in my opinion this is well balanced. Playing over the board under the same time control is not much different, but one needs to have some practice with it or the time pressure will get the better of you. What strategy you might consider to be successful? Here is my take on it:
1. Opening – you need to have reliable opening choices and play them well. There is very little time you can really spend on thinking about it and if you start guessing, time becomes your enemy rather quickly
2. Middle game – having a solid position will force the opponent to spend time deciding where and how to attack you. This is a good thing! A good middle game position builds up from the opening; here it is important to know typical setups and plans available out of your opening choices. One such setup to consider could be for example a specific pawn structure or a standard attacking idea
3. Endgame – do not ignore it, thinking there is little chance to reach it in such a short time! Being able to play a strong endgame could either allow you to defend stubbornly and force the opponent to find the win (mostly in increasing time pressure) or improve your position bit by bit and put your opponent in time pressure to defend a worst position

The game I have selected is a good illustration of the above. It was played in the 4th round and was of major importance in setting up the stage for the last round and deciding the first place. Black had played very serious up to that point and was rewarded with a bit of luck along the way by collecting wins in round 1 (when she was under assault) and round 3 (in an opposite colour bishops endgame). White on the other hand let a draw slip through her hands in round 2 when she kept the opposition for 3 moves and forgot to pay attention to it when playing the 4th move in a king and pawns endgame; her opponent gained the opposition and got the win. Looking at this position I can add a few details to help you understand better what was going on:
– White managed to play her preferred opening line
– Black decided to go pawn grabbing, probably because this was her first game where she could do that
– White’s clock was running well under 10 minutes, while black had 12+ minutes
– White is a player used to slower time controls, so here the time crunch was her enemy
– Ne5 is very well placed; kicking it out of there should have been high on White’s priority list
– the White pieces are lining up to storm the castle and that is worth the pawn White is down; that was the g-pawn black captured and has allowed white to place a rook on g3
– both Black rooks are not very useful, Rb7 being clearly the worst of them all
Who do you like here? What side would you prefer to play considering the time available? There is no right or wrong answer and it is pretty much based on what type of player you are. Let’s see what happened in the game:

Hope you found this article useful. A number of points could help you in any active game with reflection time up to an hour per player. We will continue to see faster time controls in many tournaments and being ready to play good is going to give you an edge. If you have any games and/ or positions you would like me to look at, please do not hesitate to let me know. I will gladly include them in my column for everyone’s benefit. Looking forward to your messages!

Valer Eugen Demian

A Shocking Breakthrough In A Pawn Endgame

Here’s an interesting pawn endgame. In spite of White’s passed pawn Black won this game with a shocking breakthrough on the queenside, creating his own passed pawn. Although both sides queen Black wins because he has some mating nets:

Sam Davies

Fourth Time Unlucky

Here’s a puzzle for you, taken from a game I played the other day. It’s White’s move. What would you play?

While you’re thinking about your answer, here’s what was happening three boards away. My teammate, a new club member who, until a few weeks ago, had never played competitive chess, never recorded his moves or used a clock, and knows very little opening theory, was playing black against a seasoned campaigner (ECF 129). He’s very keen to play and improve so we’re selecting him for our matches whenever we can. It’s always important to encourage new members.

1. e4 e5
2. Nf3 Nc6
3. d4 exd4
4. Bc4

A common choice at this level. You have to know what to do next. The usual reply is Nf6, which is fine as long as you know the Two Knights Defence and have good lines against both 5. O-O and 5. e5. If you prefer defending the Giuoco Piano to the Two Knights then you’ll probably prefer Bc5, which again will probably transpose after 5. c3.

On general principles, even if you don’t know the theory, you should get one of your pieces out rather than make a nervous reaction like..

4… h6

At one level it’s natural to be scared by the idea of Ng5, but after, say, 4… Nf6 5. Ng5, you can defend with either d5 or Ne5.

5. O-O Bc5
6. c3 dxc3
7. Nxc3 a6

Another unnecessary pawn move – just the sort of move we all tell our pupils not to play, and quite rightly so too. Perhaps he wanted to play b5 next move. The first time we met at the club we played a few friendly games, in one of which I played a similar gambit in the Ruy Lopez after he’d played some unnecessary pawn moves. After the game he asked me why I gave up the pawn.

Now White really ought to be pretty close to winning. He has several attractive attacking moves to choose from. The engines like Qb3 and Be3 (very happy for Black to trade and open the f-file) but White prefers a typical tactic in this sort of position.

8. Bxf7+

A temporary sacrifice to set up a fork.

8… Kxf7
9. Qd5+ Ke8
10. Qxc5 d6
11. Qh5+ Kf8
12. Ng5

I guess it’s tempting to threaten mate but there were probably stronger alternatives here. Black can meet the threat and then drive White’s pieces back.

12… Ne5

But not like this, though. The knight is open to attack here. It shouldn’t be too hard to spot 13. f4, which just wins at once, but instead White preferred…

13. Nd5 Nf6
14. Nxf6 Qxf6

Now Black has an awkward threat of g6, opening up a line of defence from f6 to h8 and winning a piece. The only way for White to keep an advantage now is to play 15. f4. Alternatively, 15. Nf3 leads to exchanges and a level position.

15. h3

Instead White misses Black’s threat and loses a piece.

15… g6
16. Qh4 hxg5
17. Qg3 Nf7
18. f4 Qd4+
19. Be3 Qxe4
20. fxg5 Bf5
21. Rac1 Rc8
22. Qf2 c5
23. Rce1 Qd5
24. Rd1 Qe6

Black has played sensibly over the past few moves and kept his extra piece. Now White spots a clever tactical idea to win a pawn…

25. g4 Be4
26. Rxd6

… but there’s a serious flaw.

If I told you Black had a mate in two in this position you’d have no difficulty finding it. If the opportunity for a snap mate comes along in a position in which you were just thinking about keeping your extra piece and checkmate hadn’t entered your head at all you could easily miss it.

But, as I keep on saying, you have to look at every forcing move: check, capture and threat.

It’s always nice to win a game with a queen sacrifice, but sadly for Black it wasn’t to be. There was an alternative win as well: Rxh3 when White has to trade twice on f7, ending up a rook down. No matter, though. Black’s still winning.

26… Qe8
27. Bxc5 Kg8
28. Rf6 Rxh3
29. Qd4

Now Black has another chance for an immediate win. It might not be so easy to find at this level, but 29… Rxc5 30. Qxc5 Qd7 leaves White with no defence against the twin threats of Qxg4+ and Rh1+ followed by Qd2+. He’s still winning easily, though after…

29… Rh1+
30. Kf2 Rh2+

Instead he could have traded to set up a fork: 30… Rxf1+ 31. Kxf1 Qb5+.

31. Kg3 Rg2+
32. Kh3 Rc7

Black stops to defend f7, but the computer finds 32…Nxg5+ 33.Kh4 Nf3+ 34.R6xf3 Bxf3 35.Rxf3 Qe1+ 36.Kg5 Qc1+ 37.Kxg6 Rc6+ 38.Bd6 Rxd6+ 39.Qxd6 Rxg4+ 40.Kf5 Qg5+ 41.Ke6 Re4+ 42.Kd7 Qg7+ 43.Kd8 Rd4, which is not possible for most of us to find over the board. The move also introduces the idea of transferring the rook to the h-file after the knight on f7 moves.

33. Re1

Now Black has a mate in six moves. Instead White might have tried 33. Rxf7 Rxf7 34. Rxf7, challenging Black to find the correct capture. The more obvious 34…Kxf7 leaves Black a rook ahead, but White can force a draw: 35.Qf6+ Kg8 36.Bd4 Qf8 37.Qe6+. Instead 34… Qxf7 35.Qxe4 Rxb2 should win.

34… Nxg5+
34. Kh4 Nf3+

An oversight, but it shouldn’t have mattered: I guess he must have overlooked that his bishop was pinned. The quickest mate was 34…Rh7+ 35.Kxg5 Rh5+ 36.Kf4 g5+ 37.Ke3 Rh3+ 38.Rf3 Rxf3#

35. Rxf3 g5+

There was still a mate: 35…Rh7+ 36.Kg5 Rh5+ 37.Kf4 g5+ 38.Ke3 Bb1+ and mate in two more moves.

36. Kh3 Rh7+

This should lose. Instead Black could draw by giving up his queen: 36…Rxg4 37.Rf8+ Qxf8 38.Bxf8 Bf5 threatening mate, when White can choose between 39.Qd5+ Rf7 40.Kh2 Rh4+ with a perpetual check and 39.Qxg4 Bxg4+ 40.Kxg4 Kxf8 with a drawn rook ending.

37. Kxg2 Bxf3+
38. Kxf3

The sort of obvious move you play without thinking – well at least I do, which is why I’m not a strong player! But it should only draw. Kf2, on the other hand, wins, as White will win the bishop later under more favourable circumstances.

38… Qxe1

Again, the obvious move you play without thinking – and again it’s a mistake. 38… Rf7+, taking time out to move the rook to a better square, would draw.

39. Qd8+ Kg7
40. Qxg5+ Kf7
41. Qf5+ Kg8

Or 41…Kg7 42.Bd4+ Kg8 43.Qg6+ Kf8 44.Bc5+ Re7 45.Qf6+ and wins

42. Qf8# 1-0

An exciting game but a sad end for Black. He’ll put it down to experience.

If you remember my articles from a few months ago (here and here) you’ll recognise the theme.

I was White, again facing the same opponent as in the first game quoted above, and again we both missed the same idea. In this case a bishop sacrifice decoys the black rook into a fork: 1. Bxd5 Rxd5 2. Qa8+. These ideas keep on coming up in my games – and every time I miss them, even though I’ve just been writing a chapter in Chess Tactics for Heroes based on this theme. The game, again, was eventually drawn. You may well see it in full here in a few months time.

We lost the 8-board match 3-5 but if we’d both taken our chances we’d have won 4½-3½ instead. Still, at least it was an end-of-season mid-division match with nothing at stake expect honour and grading points.

Richard James

Opening Principles: Part One

Beginners tend to lose games before they really get started because they randomly move pieces out onto the board with little thought being put into the moves they make. Often, you’ll see beginners making pawn move after pawn move during the opening, the first ten to fifteen moves of the game, while their more experienced opponent brings a variety of pieces into the game in a structured order. Beginners also have a bad habit of bringing their Queen out early, intoxicated by her power, thinking that one should employ the heaviest artillery early on to win the battle quickly. Beginners make a plethora of mistakes during the opening that lead to their downfall. Then there’s the beginner who memorizes a series of opening moves they found in a chess book. They make those moves without understanding the underlying mechanics of each move. Their more experienced opponent will make the appropriate responses, knowing why each move is made and it’s underlying principles, eventually making a move that starts a vicious attack. Our beginner wrings his or her hands in despair, not knowing what to do. If any of these scenarios sounds familiar, read on.

I’m going to break the opening principles down in great detail, exploring one principle per article. The first principle we’ll look at is controlling the center of the board with a pawn, something we should do on our very first move. When I say the center of the board, I’m talking about four squares, e4, e5, d4 and d5. These four squares make up the board’s center. The twelve squares that surround our four central squares are also important. Those squares are c3, c4, c5, c6, d3, d6, e3, e6, f3, f4, f5 and f6. What’s so important about the center of the board?

First off, the most important piece, the King, sits on a central file, the e file (the files are the eight vertical columns running up and down the chessboard, named (starting from the left) the a, b, c, d, e, f, g and h files). Since the opposition King is your target, going through the center of the board to get at him is the quickest approach. Another factor to consider is the simple fact that pieces have more power, the control of more squares, when they’re centrally located. On the chessboard, a Knight placed on one of the four central squares attacks or controls eight squares. That same Knight placed on the edge of the board attacks or controls four squares (half as many as when centrally located). A Knight on a corner square attacks or controls two squares. The same holds true for all pieces except the Rook. A Rook on an empty board controls fourteen squares no matter where it’s placed. Now you know why the center of the board is so important. Now to start the game!

Beginners are faced with a dilemma on their first move because they have a choice of twenty possible moves, sixteen pawn moves (pawns can move one or two squares forward on their first move, then one square at a time after that first move). Since Knights can jump over pawns and pieces, each player has a choice of four possible Knight moves. While an experienced player knows exactly what first pawn move to make, the beginner frets, trying to decide which pawn to push. In this article, we’re only going to look at initial pawn moves.

We know that our job during the opening phase of a chess game is to control the board’s center. We know that the central squares are d4, d5, e4 and e5. Therefore, we want to move a pawn that controls one of these squares. However, I need to amend this statement to say that we want to control a central square on our opponent’s side of the board. White’s half of the board consists of the first, second, third and fourth Ranks (Ranks are vertical rows running left to right, named the first, second, third, fourth, fifth, sixth, seventh and eighth Ranks). Black’s half of the board consists of the fifth, sixth, seventh and eighth Ranks. Thus, on White’s first move, we want to control the d5 or e5 square (on Black’s side of the board) and on Black’s first move, Black wants to control the d4 or e4 square (on White’s side of the board). Therefore, you should move a pawn two squares forward, not one square forward, because you want to control your opponent’s side of the center.

The reason pawns are so important has to do with their relative value, which is one. The pieces have values ranging from three to nine points (consider the King priceless). Therefore, a one point pawn that controls a square will dissuade an opposition piece from moving to that square if pawn can capture it since trading a Knight, for example, for a pawn would be a bad trade!

Knowing the importance of the central squares helps narrow down our choices regarding which pawn to use on move one. Since we know that pawns attack diagonally, we should choose a pawn that attacks the d or e files. This means the e, d and c pawns. What about the f pawn, you might ask? We don’t want to move our f pawn because moving that pawn can prematurely expose our King to attack. I’ve listed the pawns we want to move in an order the beginner should follow. You should start by learning e pawn openings, followed by d pawn openings and finally c pawn openings such as the English Opening. The beginner reading this should let out a sigh of relief since we’ve just narrowed our list of twenty possible first moves to one or two. I suggest that beginners learn e pawn openings first because d pawn openings lead to more closed positional games that require a skill set the beginner has yet to develop. However, you should study d pawn openings as soon as you’re comfortable with e pawn openings.

Playing white, the beginner should start with 1. e4. This plants one of your pawns firmly on a central square. However, having a pawn or piece on a central square doesn’t mean you control it. In the case of a pawn on e4, that pawn is controlling the d5 and f5 squares. Playing Black, the beginner should start with 1…e5, which controls the d4 and f4 squares. While there are other alternatives for Black’s first pawn move, such as 1…e6 (The French Defense), 1…c6 (The Karo Cann) or 1…c5 (The Sicilian Defense), these openings require a good knowledge of opening principles which the beginner needs to develop over time.

Moving a pawn to e4 for White or e5 for Black has an added bonus. With the exception of the Knights, all the other pieces are trapped behind a wall of pawns, unable to participate in the game. When White plays 1. e4, the pawn moves off the e2 square which allows the King-side or light squared Bishop and Queen to enter the game. The same holds true for Black upon playing 1…e5 (Freedom for Black’s King-side Bishop and Queen). You have to move pawns to get your pieces (other than the Knight) into the game. Ideally, White would like to play 1. e4 followed by 2. d4, which would give both Bishops immediate access to the board. However, 1…e5 stops White from being able to immediately play 2. d4 (although in some openings, White will play 2. d4, allowing Black to capture the d pawn). Remember, in chess there are two plans, yours and your opponents. You opponent isn’t going to let you have your way when it comes to controlling the board’s center and vice versa.

It’s important to make a first move that controls the center of the board if you’re commanding the White pieces. Since White moves first, the person in charge of the White army should take the initiative which means control of the board’s center. The person commanding the Black pieces is essentially a move behind. This means, as Black, you should aim to equalize the position. Thus, when White plays 1. e4, they have a foothold in the center. If Black makes a move like 1…a4 (a dreadful move) White will take advantage of this move and plant another pawn in the center with 2.d4 and Black will fall hopelessly behind in development. By development, I mean building up central control by developing or moving specific pawns and pieces. When Black plays 1…e5, Black has the same advantages as White such as control of a central square (d4) and the ability to bring the King-side Bishop and Queen into the game. Please note that just because you give your Queen access to the board doesn’t mean you should bring her out right away. The Queen is a powerful piece that will instantly become a target for the opposition should she be brought out early on. Save her for later.

When starting a game, always aim for the center and use a pawn to secure a foothold there. Since pawns have the least relative value (one), the have a great talent when it comes to keeping those more valuable pieces at bay (off of any square the pawn controls). Don’t go crazy and make nothing but pawn moves during the opening. Make one pawn move to start or two, should you have the opportunity to move the d pawn safely to d4, for White, or d5 for Black on move two. Pawns have to be moved to get your pieces into the game (except for the Knight). Learn to love and respect the pawn. Just because you start the game with eight of them and they have the lowest relative value doesn’t mean they’re not important. Every pawn has the potential to promote into a Queen.

We’re going to look at part two of your opening plan, bringing the minor pieces into the game next week. The minor pieces are the Knights and Bishops. For now, here’s a game to enjoy until next week. Enjoy!

Hugh Patterson

More Benefits of Studying the Classics

Before I studied the art, a punch to me was just like a punch, a kick just like a kick. After I learned the art, a punch was no longer a punch, a kick no longer a kick. Now that I’ve understood the art, a punch is just like a punch, a kick just like a kick.

~Bruce Lee

I’ve written before about the importance of studying the games of the old masters (as have many chess writers). One of the benefits of doing this is that we can often see some of the essential strategic and tactical elements of chess in a very pure or perhaps primitive form.

As modern chess theory and the general knowledge of chess players developed and improved through the decades, some of the building blocks of chess have become buried in complexity. The initial purpose of a move originally played in the 19th or 20th century gets obscured as computer analysis and scores of chess masters analyze complications and tactical divergences to a degree that beginning and intermediate players are no longer aware of the fundamental purpose of specific moves. They play the move because their chess book or database says it is a good move.

Of course, good opening chess books, videos, and coaches hopefully can help in this matter. However, one enjoyable way is to study the earliest incarnations of these moves, as played by masters who paved the way.

When Magnus Carlsen or Wesley So plays a move, they have the advantage of having seen the first 15 or 20 moves in dozens (or hundreds) of games played by masters over the years. The early masters such as Lasker, Capablanca, and Alekhine were building on very new theory – much of which they created themselves! This is not to discredit the modern elite player, who have to both remember, understand, and synthesize these mass amounts of theory to compete at the highest levels. However, it is both pleasing and fruitful to understand the problem of a chess position from the eyes of a master who is seeing it for the first time, or perhaps only a few times before.

So don’t neglect your study of the early masters.

Here is an example from a classic game between Edgar Colle (well-known for his opening for the White pieces) and Ernst Gruenfeld (also well-known for his origination of the defense that bears his name – although it is not featured in this game). This game features many instructive points, particularly if you find joy in a beautiful attack.

Bryan Castro

The Comeback Trail, Part 12

In previous articles in this series I’ve discussed different opening choices and judging their suitability. Assuming one has made some prospective choices what is the next stage?

There’s certainly a temptation to rush out (or perhaps rush online) to buy a specialist opening book on the opening in question. But instead of this I’d recommend trying it out first, perhaps in some internet games.

This will provide a lot of new information. Do you like the positions you get? How do your opponents typically reply? Do they tend to know what they’re doing or is there a serious surprise value?

This initial testing period can be combined with looking at some master games and watching some Youtube videos, assuming they are available. See this process as being something akin to dating, there’s no need to get married until you’ve got a clear idea of what you’re letting yourself in for.

Here’s a video that introduces the Semi-Slav, which is certainly something worth looking at if you’re interested in this opening. If you like what you see and then enjoy playing it, it might be worth introducing it into your repertoire:

Nigel Davies

Some Instructive Positions from Levon Aronian in Grenke

First of all, let me congratulate Levon Aronian for winning Grenke chess classic 2017. Secondly I would like to be clear that this article is aimed to beginners and pre-intermediate players only. Here I will discuss a couple of positions which might help you improve your endgame technique.

Here is the first one:

Aronian vs Vachier Lagrave, Grenke Chess Classic 2017 Round 3

Q: Which bishop should White exchange and why?

A: White should exchange the light square bishops as Black’s dark square bishop has no targets while White’s dark square bishop can easily target Black’s pawns. On top of that White’s king will be free very soon to join the attack pawn on e4. This would fall because Black’s king and bishop have to defend his pawns and to stop White’s outside passer.

In the game Aronian played
1. e6!! Bxe6

Forced.

2. Bxe6 Kxe6 3. Kd2

Black resigned. Black can force the exchanges of dark square bishops but then the king and pawn endgame would be an easy win for White.

Matthias Bluebaum vs Levon Aronian, Grenke Chess Classic 2017 – Round 4

Q: Formulate a plan that pockets the full point.

A: Of course the plan would be to win more material or exchange the rooks which simplifies into a winning king and pawn endgame.

Q: But the question is how?

A: Well, bring your Rook to b4 that forces the exchanges or loss of further material for White. But there are few turns where you must be careful.

1… Rc2 2. Kg3 Kg7!

Very important, bringing the king into the square. If 2…Rb2 3.f3 Rb4 4. Rxb4! and White can also make a queen and game might end in a draw.

3. h4 Kf6 4. Rf4+ Ke7

Now the White king is boxed in.

5. Rd4 Rc3+ 6. f3 Rc2!

The king has to guard g2 so it can’t support the rook on d4 in case of Black playing …Rb2 and …Rb4.

7. Kh3 Rb2!

White resigned.

Ashvin Chauhan

Endgame Play (3)

“To improve at chess you should in the first instance study the endgame”
Jose Raul Capablanca

This week’s endgame is a beauty! At first glance it looks deceivingly simple. It is white to move; please have a look and guess what the result would be:


Does the position look familiar to you? Do you happen to know more about it? I found it online as is and would love to hear who is the author, plus the time and place when/ where it was published. Moving on, the first thing I noticed were the 4 passed pawns, 2 for each side and on the same side of the board. Both pawns on each side are separated by one file; this means each king has a fighting chance against them. Let’s have a look at how each king has to fight those pesky pawns.

The White king: both pawns are on the 3rd rank and the king is not in their imaginary square (the corners of it are “a1-a3-c3-c1”) to stop their promotion. This means White must use the first move to enter in that imaginary square by playing either Ka4xa3 or Ka4-b3; both moves stop both pawns from promoting. The pawns can’t really do much against any move choice. OK, that sounds reassuring and we can move our attention to the other side.

The Black king: he is in the imaginary square created by the White pawns (the corners of it are “h2-c2-c8-h8). Do you remember why we should consider the c2-c8 as corners instead of b2-b8? Think about it and make sure you find the right answer before moving on. The answer will also be available below for verification. So, should the Black king be worried about those White pawns since it sits comfortably in their imaginary square. Will it just cherry pick them with ease like the White king will do? Apparently it will. Have a look at the White pawns now; could they do anything about it? Well, one strong strategy the pawns separated by a column have in fighting the opposing king is to maintain an L-shape (knight move) formation. They sit on f3 and h2 identical with a knight move and maintaining that makes them intangible. When the Black king attacks the front one (the f3-pawn here), the backwards one (the h2-pawn) moves forward “h2-h4” in the same L-shape (knight move) formation. The Black king would not be able to capture the f3-pawn and also stop the h4-pawn from promoting, so this could pin down the Black King.

Do we have enough to solve the puzzle? Let’s see if we do and will start by taking one of the Nlack pawns (less to worry about, right?):

Hmm, that did not turn out as expected, right? What is the reason for it? Well, the Black king came all the way to the queen side and helped the c3-pawn promote. Fortunately we have the luxury of choosing which Black pawn to take, so let’s try to capture the c3-pawn first. There is no way the Black king can come to the rescue of the a3-pawn:

The answer to the question above regarding the imaginary square of the white pawns: the left hand side corners of it should be c2-c8 because the h2-pawn would move h2-h4 in one move, meaning it could promote in 5 moves instead of 6. You must be aware of this detail with passed pawns still on their original square. Hope you liked it and used this opportunity to refresh your endgame knowledge. If you have any games and/ or positions you would like me to look at, please do not hesitate to let me know. I will gladly include them in my column for everyone’s benefit. Looking forward to your messages!

Valer Eugen Demian

A Shocking Pawn Endgame

I found it shocking that Black can win this endgame but he does so with a very surprising breakthrough. The other thing is that when both sides promote, Black needs to be able to force the exchange of queens after which he’s closer to the queenside than White:

Sam Davies