No. 10: Horse and Cannon Win by Rule vs Full Advisors and Elephants

"No. 10: Horse and Cannon Win by Rule vs Full Advisors and Elephants" is a Xiangqi (Chinese Chess) puzzle from the collection Practical Endgames. Red moves first and wins in 10 moves; the key first move is C7=4. Below you will find the full solution, what each move achieves, where it could go wrong, and the alternative defences.

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Pieces on the board

Red has a General, a Horse, a Cannon. Black has a General, 2 Advisors, 2 Elephants.

Solution move by move

1. Red C7=4 (threatens mate next move)
Why it works
Creates an immediate mating threat that must be answered.
What to watch out for
Not forcing: the defender has 7 replies, so compare each one before playing it.
1. Black K6=5
1. Black K6=5
2. Red C4+4
Why it works–
What to watch out for
Not forcing: the defender has 8 replies, so compare each one before playing it.
2. Black A5-6
2. Black A5-6
3. Red H2+3 (check)
3. Black K5+1
3. Black K5+1
4. Red C4=1 (threatens mate next move)
Why it works
Creates an immediate mating threat that must be answered.
What to watch out forNo real drawback in this position.
4. Black K5=6
4. Black K5=6
5. Red C1+2 (check, the only legal reply)
Why it works
Forcing: the opponent has only one reply, so the line cannot be avoided.
What to watch out forNo real drawback in this position.
5. Black K6+1
5. Black K6+1
6. Red H3-4
Why it works–
What to watch out for
Not forcing: the defender has 6 replies, so compare each one before playing it.
6. Black A6+5
6. Black A6+5
7. Red H4+2 (threatens mate next move)
Why it works
Creates an immediate mating threat that must be answered.
What to watch out for
Not forcing: the defender has 6 replies, so compare each one before playing it.
7. Black E5-7
7. Black E5-7
8. Red C1-8
Why it works–
What to watch out for
Not forcing: the defender has 6 replies, so compare each one before playing it.
8. Black A5-6
8. Black A5-6
9. Red H2-4 (threatens mate next move)
Why it works
Creates an immediate mating threat that must be answered.
What to watch out for
Not forcing: the defender has 7 replies, so compare each one before playing it.
9. Black A6+5
9. Black A6+5
10. Red C1=4 (checkmate)
Why it works
Ends the game: no legal reply remains.
What to watch out forNo real drawback in this position.
10. Red C1=4

Variations and alternative defences

The source manual records 1 variation. Each branch starts from the move number shown.

Variation 1, from move 1: K6+1 2. H2-4+ A5+6 3. K5=4 E5-3 4. H4+6+ A6-5 5. H6-5 -E+5 6. H5+4+ A5+6 7. H4+6+ Try it on the board

Final position

Red wins after 10 moves. The General has no legal move.

Questions about this puzzle

Who moves first in "No. 10: Horse and Cannon Win by Rule vs Full Advisors and Elephants"?

Red moves first, as in every puzzle of Practical Endgames.

How many moves does the solution take?

10 moves. The main line is shown above; alternative defences are covered in the variations section.

What is the key move?

The first move C7=4 starts the combination. Everything that follows depends on it.

Can I play this position myself?

Yes. Open it on ChessZing, where the board checks your moves and shows the solution if you get stuck.

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