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London, 1912. Edward Lasker sacrificed his queen on move 11 and chased the black king from h7 all the way to g1 — the length of the board — finishing, famously, with checkmate by castling. One of the most spectacular king hunts ever played.
A king dragged into the open is worth far more than a queen — but only if you can calculate the walk to the end. Lasker saw that every check pulled the king forward with no escape, so the queen sacrifice was simply the price of a forced mate.
Yes. Castling is a king move, and if it gives check with no escape it's mate. Here the rook drops to d1 and checkmates the king on g1 along the first rank.
The famously published score ends 18.O-O-O#. Edward Lasker himself later claimed he actually played 18.Kd2# — both deliver mate. We show the celebrated castling finish.
Yes — take White at move 11 and try to find the queen sacrifice and the forced march, or step through it, no sign-up.
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