A Casual Game in the City of London, October 1912
Edward Lasker had only recently arrived in London from Berlin when he sat down opposite Sir George Alan Thomas at the City of London Chess Club on 29 October 1912. It was not a tournament game. The two were playing an offhand encounter, the kind of game most masters would expect to forget by the following morning. Neither man could have known they were about to produce one of the most replayed miniatures in chess history.
The pairing itself carried weight. Thomas was no club amateur but a genuine master who would twice win the British Championship, in 1923 and 1934. Lasker, a young engineer and a distant relative of world champion Emanuel Lasker, was a sharp attacking player who would go on to win five US Open titles. The game opened as a Dutch Defence: 1.d4 e6 2.Nf3 f5 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf6 Bxf6 6.e4 fxe4 7.Nxe4 b6 8.Ne5 O-O 9.Bd3 Bb7 10.Qh5 Qe7. Ten ordinary-looking moves, and Black appeared to have everything under control.
The Position After Ten Moves
On the surface, Thomas stood reasonably. He had castled, developed his bishop to b7, and his queen on e7 defended the f6 bishop against the threatened Nxf6+. The pawn on h7 seemed adequately shielded by the king itself. But the position contained a hidden geometry that Lasker had seen and Thomas had not.
Three White pieces bore down on the black kingside: the queen on h5, the knight on e5 covering g6 and f7, the knight on e4 ready to leap to f6, and behind them the bishop on d3 aimed straight along the b1-h7 diagonal. The critical detail, the kind of pattern study that separates masters from amateurs in chess tactics, was that the capture on h7 did not need to win material. It only needed to drag the king onto a square where a discovered double check would begin an unstoppable chain. Once Lasker confirmed that every black reply was forced, the queen became expendable.
11.Qxh7+!!: The Sacrifice
Lasker played 11.Qxh7+ and Thomas had no choice: 11...Kxh7 is the only legal move. Then came the point, 12.Nxf6+, a discovered double check from the knight on f6 and the bishop on d3. Double check is the most forcing device in chess, since the king must move; no piece can block or capture two attackers at once. After 12...Kh8 White mates instantly with 13.Ng6#, so Thomas had to walk forward with 12...Kh6.
From there the hunt unfolded with mechanical inevitability: 13.Neg4+ Kg5 14.h4+ Kf4 15.g3+ Kf3 16.Be2+ Kg2 17.Rh2+ Kg1. Seven consecutive checks, and at every single moment Thomas had exactly one legal reply. The king that had castled into safety on move eight crossed the e, f and g files, passed through the centre, marched through White's pawn chain and arrived on g1, the very square where White's own king began the game. Among all famous chess games, none drives the enemy monarch so far with so little choice.
Mate on the First Rank: Kd2 or Castles?
The finish has its own controversy, and it deserves honest treatment. In the final position White can deliver checkmate two different ways. The prosaic 18.Kd2# steps the king aside and unveils the rook on d1's file toward the trapped king. But 18.O-O-O# also mates, and castling to deliver checkmate would be an almost unique occurrence in master chess.
The legend says Lasker castled. The evidence says otherwise. In his own books, including Chess Strategy, Lasker gave the finish as 18.Kd2#, and most careful historians accept his account of his own game. The castling version appears to be a later embellishment, too beautiful for storytellers to resist. Lasker did remark that he had noticed the castling mate was available, which is likely how the myth took root. Thomas, by all accounts, took the loss with the sportsmanship of a true gentleman, reportedly exclaiming that the combination had been very pretty. Both men appear among the famous chess players of the early twentieth century, but it is this single offhand game that binds their names together.
What Made the Combination Extraordinary
Queen sacrifices were not new in 1912. The Greek Gift bishop sacrifice on h7 had been known for centuries, and brilliancies built on giving up the queen stretch back through the Romantic era. What set Lasker's combination apart was its totality. The sacrifice yielded one pawn and no immediate threat of material recovery; its entire justification was an eight-move forced sequence ending in mate, calculated in full before the queen left h5.
The combination also showcases nearly every forcing motif in the attacker's arsenal: the decoy (Qxh7+ pulls the king onto a poisoned square), the discovered double check (Nxf6+), pawn checks used as ladder rungs (h4+ and g3+), and finally a quiet-looking king move that doubles as a discovered mate. Students of chess strategy are usually taught that king safety is a long-term positional asset. This game is the standing counterexample: one structural concession, the slightly loosened kingside created by the Dutch move ...f5 and the exchange on f6, converted into forced mate in under twenty moves.
Legacy of the Great King Hunt
The game appeared in newspaper columns within weeks and has never left the anthologies since. Lasker himself annotated it repeatedly, and it became a fixture of tactical textbooks as the definitive illustration of the king hunt: the genre of combination where the defending king is not merely exposed but escorted, check by check, to its execution square. Generations of teachers have used it to demonstrate the power of double check, and the position after 11.Qxh7+ is among the most widely recognised in the game, sitting alongside the great brilliancies that predate even the World Chess Championships.
Both players went on to substantial careers, Thomas as a double British champion and Lasker as a near-champion of the United States and one of the most readable chess authors ever published. Yet the casual game of October 1912 outlived everything else they did at the board. It endures because it is perfect of its kind: no flaw has ever been found in the combination, no improvement for Black after move eleven, no escape. Played in London on the equipment standardised by Jaques of London, it is the king hunt against which every other is measured.
Jaques of London — Making Chess Sets Since 1849
By 1912, when Lasker and Thomas sat down at the City of London Chess Club, the Staunton pattern pieces created by Jaques of London in 1849 had long been the universal standard for serious play. The king that marched from g8 to g1 that evening was a Staunton king, the design endorsed by Howard Staunton himself and crafted to the pattern first produced in the Jaques workshop. The same Staunton chess set design is still made by Jaques today.
Shop Staunton Chess Sets →Frequently Asked Questions
Q: What were the moves of Edward Lasker's queen sacrifice against Sir George Thomas?
The game began 1.d4 e6 2.Nf3 f5 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf6 Bxf6 6.e4 fxe4 7.Nxe4 b6 8.Ne5 O-O 9.Bd3 Bb7 10.Qh5 Qe7. Lasker then played 11.Qxh7+!! Kxh7 12.Nxf6+ Kh6 13.Neg4+ Kg5 14.h4+ Kf4 15.g3+ Kf3 16.Be2+ Kg2 17.Rh2+ Kg1 18.Kd2#. Every black move from move 11 onward was forced. After 12...Kh8 instead, White mates immediately with 13.Ng6#. The black king was dragged from g8 all the way to g1, where it was checkmated standing on White's own back rank, a journey of seven consecutive forced moves with no escape at any point.
Q: Did Lasker deliver mate with 18.Kd2 or by castling queenside?
This detail is genuinely disputed. In the final position both 18.Kd2 and 18.O-O-O deliver checkmate, because either move clears the way for the d1 rook or the queen rook to attack the king on g1 while the white king steps aside. The romantic version of the story has Lasker castling queenside to deliver mate, which would make it one of the only games ever finished by a mating castle. Lasker himself gave 18.Kd2 in his own published accounts, including Chess Strategy, and most careful historians accept that as what was actually played. The castling finish appears to be a later embellishment, though an entirely legal one. We present 18.Kd2# as the authentic conclusion while noting the legend honestly.
Q: Who were Edward Lasker and Sir George Thomas?
Edward Lasker was a German-American engineer and strong master, a distant relative of world champion Emanuel Lasker. He won five US Open titles and narrowly lost a 1923 match for the US Championship to Frank Marshall. He was also an influential author whose books, including Chess Strategy and Chess Secrets I Learned from the Masters, taught generations of players. Sir George Alan Thomas was a baronet and one of the strongest British players of his era: twice British chess champion, in 1923 and 1934, and remarkably also a badminton champion of extraordinary pedigree, winning the All England title 21 times. That such a fine player was swept off the board makes the king hunt all the more striking.
Q: Why is the Lasker vs Thomas game considered the greatest king hunt in chess history?
Three things set it apart. First, the completeness of the journey: the black king travels from g8, the safest square on the board after castling, across eight ranks to g1, and is mated inside White's own camp. No other famous game drives the enemy king the full length of the board with every single move forced. Second, the economy: Lasker used almost his entire army, knights, bishops, rook pawns and finally his king itself, while never allowing Black a single choice that could prolong the game. Third, the purity of the sacrifice: 11.Qxh7+ gives up the strongest piece for a single pawn with no immediate material return, justified only by precise calculation to mate. It is tactics distilled to their absolute essence.