Find the mate in 2
Mate in 2, proven against every defence.
A two move finish, Red to play. Black holds a advisor, which is enough to survive most attacks and not this one.
The position
Red attacks with a cannon, 2 soldiers and 2 horses, and Black's General stands on f9. Black's defenders: a advisor.
- Mate in 2
- Soldier finish
- Rating 1643
Red moves first. Find the move that forces mate whatever Black replies, then open the solution below.
Show the solution
The move is 兵 g8–g9. Look at what it does: and leaves Black 2 legal replies, none of which help.
The line
- Red兵 g8–g9Check. Black must answer.
- Black將 f9–f8Black's most stubborn defence.
- Red兵 d8–e8Checkmate.
Black has 2 legal moves after the first blow and each was refuted to mate. The main line shown is the toughest defence rather than a convenient one.
Why it is mate
A soldier gives the mate, which only happens once it has crossed the river and can step sideways. It is the cheapest piece on the board finishing a game, and it is a reminder that a crossed soldier is an attacker rather than a wall.
Read about this patternHow this puzzle was checked
Nothing here is an engine opinion. The position was solved by trying every legal defence to the full mate distance, so the claim that Red mates in 2 is a proof rather than an evaluation, and the first move shown is the only one that works. The defence in the line above is Black’s most stubborn try, not a convenient one.
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