Red moves and mates in 1
Mate in 1, proven against every defence.
Red is to move and forces mate in 1. Black is not helpless: there are nothing but the General still on the board, and every legal defence has been tried against this solution. All of them lose.
The position
Red attacks with a soldier, a horse and 2 cannons, and Black's General stands on d10. Black's defenders: nothing but the General.
- Mate in 1
- Cannon finish
- Rating 1345
Red moves first. Find the move that forces mate whatever Black replies, then open the solution below.
Show the solution
炮 i4–i9 is the only move that wins. Look at what it does: it removes 1 escape point from the General.
The line
- Red炮 i4–i9Checkmate.
There is nothing to try. The General cannot move, the checking piece cannot be taken, and nothing can be interposed.
Why it is mate
The mating piece arrives on a square the defence cannot cover.
How 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
- Find the mate in 2x1009 · rating 1758
- Find the mate in 2x1007 · rating 1568
- Red to play, mate in 1x1010 · rating 1307
- Red moves and mates in 1x1006 · rating 1153
- Red moves and mates in 1x1011 · rating 1189
- Red to play, mate in 1x1005 · rating 1113
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.