Pawn Majority: Lasker's Win v Capablanca, 1914, Checked

Part 1St Petersburg, 1914: the favourite meets the champion

The St Petersburg tournament of April and May 1914 was played in two stages. Eleven players met in a single round robin and the top five went into a double round robin final. Capablanca led the preliminary stage with 8 points; Lasker, the world champion since 1894, was second on 6½, one and a half points behind. ^[3] ✓ Verified

In the final stage Lasker had White against Capablanca and chose the Ruy Lopez Exchange, a quiet line that trades queens early. Lasker won, Capablanca lost to Tarrasch in the next round, and Lasker took the tournament by half a point. ^[3][5] ✓ Verified

Sources disagree about how the standings stood just before the game. One has Lasker a full point behind Capablanca, another has the two level with Lasker due to play fewer games. They agree on the point that matters: Lasker needed the win. ^[4][5] ✓ Verified

Part 2What is a pawn majority, and when does it win?

A pawn majority is a wing where one side has more pawns than the other: four against three, or three against two. Pushed forward with the pieces behind it, the extra pawn can be exchanged for an enemy pawn in a way that leaves a passed pawn (a pawn with no enemy pawn in front of it or on the neighbouring files), which is the most valuable asset in an ending.

A majority only counts if it is healthy. A doubled pawn, two pawns on one file, counts as one pawn when you try to create a passer. That is the whole point of the Exchange Lopez: White gives up the bishop pair to leave Black with doubled c-pawns, and keeps a clean four against three on the other wing. ^[6] ✓ Verified

A majority has two uses. The first is the threat: it fixes the enemy pawns and takes squares from the enemy pieces. The second is the trade: when the pieces are ready, advance and exchange. The weaker side's counterplay depends on whether it has a majority of its own. For the same idea of timing a pawn advance, see pawn breaks and Fischer's e4 and f5.

Part 3How the Ruy Lopez Exchange creates the majority

Lasker played 4.Bxc6, giving up the bishop for a knight and doubling Black's c-pawns after 4...dxc6. Black gets the bishop pair, two bishops against bishop and knight, as compensation. White aims for an ending with the better pawn structure. ^[6] ✓ Verified

Stockfish 19 does not see an advantage in this structure, only an equal game. The engine rates the position after the queen trade at close to level, and in the next few moves it even prefers Black's chances. The majority is a long-term asset that has to be paid for with accurate play. ✓ Verified

Part 4Two plans from the same position

By move 14 the dark-squared bishops are gone. Lasker's 14.Bxd6 cxd6 even repairs Black's pawns, because the c7 pawn recaptures and the doubled pawns disappear. That sounds like a gift. It is a trade for a square: the knight is about to reach e6 through d4. ◐ Inferred

So both sides own a four-against-three majority, one on each wing, and the question is who will use it first. The defender's counterplay depends on one thing: whether the bishop on b7 and the rooks can reach the centre before White's pieces clamp down. ◐ Inferred

Part 5The decisions that mattered

The graph shows a game that stays near level for fifteen moves, then tilts slowly and steadily. The first two decisions belong to Black, who had the better chances early on and gave them away.

Part 6The turning point: 30...Nb6 and the e5 break

The evaluation had been climbing for a dozen moves. The last decision for Black, before the position falls apart, is a knight move that looks active.

Part 7What could Black have done? Stop the knight

A clear chance came earlier, on move 15. Black's rooks were not yet placed and the e6 square was open to the knight. A single move would have covered it.

Part 8A fresh angle: the engine reverses the legend

This does not make Lasker's play ordinary. Stockfish rates most of Lasker's moves from 12.f5 on as best or close to it, and the 12.f5 push, while only level, is the move that keeps all of White's options. The largest slip is 29.Rg3, worth about a pawn, which Black did not exploit. What the engine corrects is the blame. Capablanca blamed one move in the notes and others have blamed the opening. The numbers say that the damage was spread across the moves from 15 to 30, each of them a safe move rather than a plan. ◐ Inferred

Capablanca's notes also say it was wrongly claimed that 12.f5 wins the game, and that it took several mistakes of Black's own to reach a lost position. That statement is borne out by the engine: 12.f5 holds the balance, and the three alternatives Stockfish tested each drop about half a pawn or more. ^[2] ✓ Verified

From the several hundred spectators there came such applause as I have never experienced in all my life as a chess player.

Part 9How to use a pawn majority in your own games

• Is my majority healthy (no doubled pawn)?
• Which of the opponent's pieces can stop it, and can I trade it?
• Where does my king belong in this ending?
• What is the break, and what must stand where before I play it?

Your turnPractise it

Set each position up, decide your plan before you look, then play it out against Stockfish to see whether it holds.

Part 10What to take away

• A majority is a promise, not a gain. It becomes an advantage only when the pieces can keep it.
• Count by files. A doubled pawn counts once when you try to make a passed pawn.
• Fix before you push. A pawn that gains space and takes squares from the enemy is worth more than an early advance.
• Cover the outpost. One of the defender's best resources in this game was a bishop move that stops a knight from landing on e6.
• The engine corrects the blame. The famous mistake was a small slip; the game was lost by a staircase of safe moves from move 15.