Find the mate in 1
Mate in 1, proven against every defence.
A one move finish, Red to play. Black holds nothing but the General, which is enough to survive most attacks and not this one.
The position
Red attacks with a soldier and 2 cannons, and Black's General stands on f10. Black's defenders: nothing but the General.
- Mate in 1
- Soldier finish
- Rating 1288
Red moves first. Find the move that forces mate whatever Black replies, then open the solution below.
Show the solution
The move is 兵 d9–e9. Look at what it does: it removes 2 escape points from the General.
The line
- Red兵 d9–e9Checkmate.
There is nothing to try. The General cannot move, the checking piece cannot be taken, and nothing can be interposed.
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 1 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.
Next puzzles
- Red to play, mate in 2x0189 · rating 1555
- Red to play, mate in 2x0187 · rating 1759
- Find the mate in 1x0190 · rating 1311
- Find the mate in 1x0186 · rating 1174
- Find the mate in 1x0191 · rating 1347
- Red moves and mates in 1x0185 · rating 1220
New to mating patterns? The glossary names the ones that come up again and again, the piece guides explain what each piece can do, and the rules page covers everything from the start.