Day 4of 16, Capablanca's Chess Career

How Capablanca Stormed a Castled King With Pawns and Heavy Pieces

Capablanca vs Raubitschek · New York 1906 · Pawn-Storm the Castled King

In the return game of their match, Raubitschek castled on the far side from Capablanca, and that handed young Capablanca a target he spent the whole game attacking. With the kings on opposite wings, he threw his queenside pawns forward, a4, b4, c5 and c6, to pry open the files in front of the black king on a8. Pawns alone do not mate, so he brought the heavy pieces up behind them, a queen to a6 and both rooks to the a and b files, and when he had enough force gathered he sacrificed his way through to mate. Take one idea from this above all others: to break a castled king you need pawns to open the lines and at least three pieces to crash through them, so storm with the pawns, then pile the pieces on behind.

Three ideas you'll take from this endgame

01

Pawns open the lines

A castled king hides behind its pawns. Push your own pawns at it to tear those lines open, because an attack needs a road in.

02

The rule of three

Pawns do not mate on their own. Bring at least three pieces to the attack, the queen and both rooks here, before you expect to break through.

03

Spend to finish

Once the force is gathered, sacrifice to blow the last doors open. Capablanca gave up a rook and his queen to mate on the a-file.

Study Mode: Watch & Play Along

Watch the lesson, then play the game through on the board below. The board stays with you as you scroll. Make each move yourself while you read. You'll remember a plan you played with your own hands far longer than one you only watched.

▶ The Lesson

♞ Play Through the Game: The Board Stays With You

The Big Idea

Storm with pawns, then pile on the pieces

The kings castled on opposite wings, Capablanca short and Raubitschek long, so Capablanca attacked the side where the black king sat. His plan has two clear stages. First the pawns: 17.b4, 18.a3, 20.a4, and the earlier 14.c5 and the push to c6, all aimed at prying open the a and b files in front of the king on a8. Then the pieces: the queen comes to a6, and both rooks swing to the seventh rank with 26.Rb7 and later to the a-file. Black generates counterplay, even landing his queen on f2 beside the white king, but it comes a move too slow and his central passed pawns are too far away to decide. When Capablanca has his queen and both rooks trained on the a-file he finishes by force: 32.Rxa7+ Qxa7 33.Ra5 Qxa6 34.Rxa6 is mate. Pawns opened the door, and the heavy pieces walked through it.

How the Endgame Arose

A Ruy Lopez, and kings on opposite wings

From a Ruy Lopez Berlin, Raubitschek castled queenside on move 10 while Capablanca had castled kingside, so once again the kings stood on opposite wings and the game became an attacking race. Capablanca's structure pointed his pawns straight at the black king: the c-pawn had already reached c5, and the a and b pawns were free to march. The lesson begins on move 17, with the black king tucked on a8 and Capablanca ready to open fire with the pawn storm.

Stop and Assess

Opposite wings again. How do you crack the king on a8?

After 16...Ka8 the material is level and the kings are on opposite wings. The black king has shuffled into the corner on a8, behind the pawns on a7, c7 and the c6 pawn. Capablanca has to open those lines and bring enough force to break through. The question is how: with what, and how many pieces. Stop and assess before you read on.

The material is level and the black king sits on a8. How does White break that fortress open, and how much force does it take?

Look at the pawns that can march at the black king, a4, b4 and the c-pawns. Picture the files they open, then the queen and both rooks arriving on the a and b files behind them. Count the attackers you would need, then reveal.

Capablanca vs Raubitschek, after 16...Ka8: level material, kings on opposite wings, the black king boxed on a8. — The attack begins after 16...Ka8: level material, and a black king on a8 to be stormed open

Reveal the assessment

Capablanca's method

March the pawns. Push a4, b4 and the c-pawns to pry open the a and b files in front of the king on a8.
Bring three attackers. Follow the pawns with the queen and both rooks; a castled king rarely falls to fewer than three pieces.
Sacrifice to break through. When the force is gathered, give up material to open the last line and force mate.

Raubitschek's problem

A king under a storm. The pawns in front of the king on a8 will be prised open and cannot be held forever.
Counterplay too far away. Black's passed d and e pawns are dangerous but on the wrong side of the board, nowhere near the white king.
No time to defend in force. Each tempo spent pushing a central pawn is a tempo not spent defending the king that is actually under fire.

The Plan

Open the a-file, then three pieces finish it

Capablanca attacks in the right order. The pawns go first: 17.b4 and 20.a4 widen the storm, and with c5 and c6 already in place the files in front of the black king are cracking open. Then the pieces arrive: the queen settles on a6, hard by the king, and the rooks come to the seventh and the open files with 26.Rb7. Raubitschek generates real counterplay, pushing the central pawns with 27...d4 and 28...d3 and grabbing a pawn with 29...Qxf2, where the queen sits right beside the white king and has to be met by 30.Rf1. But it is all a step too slow: the central pawns are far from the white king, the queen alone cannot break through, and Capablanca's whole army bears down on a8. When Capablanca has his queen on a6 and both rooks bearing down the a-file, he strikes: 32.Rxa7+ rips the last pawn away, and after 32...Qxa7 33.Ra5 Qxa6 34.Rxa6 is mate. The central counterplay never got going, because it was pointed at empty space while the real attack was pointed at the king.

The Critical Moment: Think First

Here is the breakthrough. Capablanca has the queen on a6 and both rooks on the a and b files, three heavy pieces trained on the black king. Black has just pushed in the centre with 31...e3, miles from the action. It is White to move, and the gathered force is finally enough to crash through on the a-file. The finish is a short, forcing sacrifice.

White to play. How does Capablanca convert all that pressure on the a-file into mate, and why does Black's central counterplay not matter?

Capablanca vs Raubitschek, after 31...e3: White to play a forcing sacrifice to break through on the a-file. — After 31...e3 White plays 32.Rxa7+, tearing away the last pawn in front of the king

Reveal the move and the why

32.Rxa7+, and the king's last shelter is gone. The rook gives itself up to strip the a7 pawn, and after 32...Qxa7 the black queen is dragged onto a square where it blocks nothing useful. Capablanca swings the other rook over with 33.Ra5, renewing the threat down the a-file, and after 33...Qxa6, taking the queen, 34.Rxa6 is mate: the king on a8 is pinned in the corner with no escape and no defender. Count what did the work: the queen and both rooks, the three attackers the pawns had spent the game making room for, two of them sacrificed so the last rook could mate, while Black's central passed pawns sat too far from the fight. In your games, when you attack a castled king, open the lines with pawns first, then make sure you commit at least three pieces to the break. An attack that is one piece short stalls; an attack with three crashes through.

♞ Follow the Finish: The Board Returns

Three Pieces Break Through

The a-file opens, and the corner king falls

Look at the position after 33.Ra5. Capablanca has already given up one rook on a7 to strip the king's pawn, and now the second rook swings to a5 to renew the threat, while the queen on a6 holds the king pinned in the corner. Black has a queen and two rooks of his own, and passed pawns racing on the d and e files, but not one of those pieces can reach a8 in time. This is the picture the whole pawn storm was building toward: three white attackers on the open a-file against a king with nowhere to run.

Capablanca vs Raubitschek, after 33.Ra5: the queen on a6 and rook on a5 trap the king on a8. — After 33.Ra5 the queen and rook bear down the open a-file on the cornered king

33...Qxa6 34.Rxa6 is mate. Capablanca had given up a rook and then let his queen be captured, and it did not matter, because the last rook mates on a6 and the king on a8 cannot move or be defended. A level middlegame had become a forced mate, built entirely on an opposite-wing pawn storm and the rule of three. Carry the real lesson into your games: when you and your opponent castle on opposite sides, attack with your pawns to open the lines, then pour the queen and both rooks down them. Do not count the material you spend, and do not be distracted by counterplay that points away from your king.

Capablanca vs Raubitschek, after 34.Rxa6#: the rook delivers mate on the a-file against the king on a8. — 34.Rxa6#: the last rook mates on the open a-file, and the cornered king cannot escape

Principles to Take to Your Own Board

This game is over. Your games are where it matters.

1 · Attack where your opponent castled.

The rule: when the kings are on opposite wings, aim your attack at the side where the enemy king sits. In this game: Black castled long, so Capablanca stormed the queenside. In your games: point your pawns and pieces at the file in front of the enemy king.

2 · Open the lines with pawns.

The rule: a castled king hides behind pawns, so push your own pawns to pry those lines open before the pieces attack. In this game: a4, b4, c5 and c6 cracked the files on a8. In your games: use a pawn storm to make the road your pieces will travel.

3 · Obey the rule of three.

The rule: breaking a castled king usually takes at least three attacking pieces; two will stall. In this game: the queen and both rooks did the mating. In your games: count your attackers before you commit, and bring up a third if you are short.

4 · Spend material to break through.

The rule: once the force is gathered, a sacrifice that opens the last line is worth far more than the piece it costs. In this game: 32.Rxa7+ and the queen offer forced mate. In your games: look for the sacrifice that removes the final defender or pawn.

5 · Counterplay must point at the king.

The rule: counterattack is only fast enough if it threatens the enemy king too; threats on empty space arrive too late. In this game: Black's queen reached f2 but alone was too slow, and his passed pawns never got near the white king. In your games: when defending, seek counterplay aimed at the attacker's king, not just at material.

Test Yourself

Five questions before you go

1 · Why attack with pawns instead of just pieces?

Because a castled king hides behind a wall of its own pawns, and pieces alone often cannot get through that wall. Pushing your pawns at the king forces those defensive pawns to move or be captured, which opens files and diagonals. Only then do the pieces have a road in. Here Capablanca's a, b and c pawns pried open the lines on a8 that his queen and rooks then used to mate.

2 · What is the rule of three?

It is a practical guide that breaking a castled king usually needs at least three attacking pieces. With one or two, the defender can meet every threat; a third attacker creates a second threat the defence cannot cover. In this game the queen and both rooks made three, which was exactly enough to force mate down the a-file. If your attack feels one piece short, it probably is.

3 · Why did Black's passed pawns and extra material not save him?

Because they were on the wrong side of the board. Landing the queen on f2 beside the white king was a real threat, and Capablanca had to spend a move meeting it with 30.Rf1. But the queen alone could not break through, the central passed pawns were too slow, and none of it defended the black king on a8. Capablanca's attack simply arrived first, and mate ends the game regardless of the scoreboard.

4 · Why sacrifice the rook with 32.Rxa7+?

To tear away the last pawn shielding the king and open the file completely. After 32...Qxa7 33.Ra5 Qxa6 34.Rxa6 the second rook mates, because the king on a8 is trapped in the corner. The sacrifice is not a loss of material, it is the price of opening the final line, and with three attackers already in place the mate is forced.

5 · What is the one habit this game should change?

Attacking a castled king with too little force, or in the wrong order. Capablanca shows the method: open the lines with a pawn storm, then bring at least three pieces to the break, then sacrifice to finish. Train yourself to storm first and pile on second, to count your attackers, and to ignore counterplay that points anywhere but at your own king.

Sharpen Your Eye: Six Endgame Exercises

Now you convert the edge

Six attacks on the castled king, rising in difficulty. In each one you have the attacking side; find the blow that breaks through and play it out. Drag the pieces; the board plays the defence for you.

Capablanca Stormed the King. Can You?

Knowing how to open lines with a pawn storm, how many pieces an attack needs, and when to sacrifice to break through are the skills that win sharp, opposite-side games. In a 2-hour Strategy Assessment I go through your games personally and hand you a roadmap built for your chess, not a hypothetical student''s.

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More from the series: follow Capablanca''s Chess Career game by game, each one a single idea you can take straight to your own board.