No. 174: Thrice Enraging Zhou Yu

No. 174: Thrice Enraging Zhou Yu楚河 漢界帥卒車馬炮俥砲俥炮象砲兵士象將士

"No. 174: Thrice Enraging Zhou Yu" is a Xiangqi (Chinese Chess) puzzle from the collection Elegant Pastimes (Shiqing Yaqu, 1570). Red moves first and wins in 5 moves; the key first move is C1+5. 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, 2 Chariots, 2 Cannons, a Soldier. Black has a General, 2 Advisors, 2 Elephants, a Chariot, a Horse, 2 Cannons, a Soldier.

Solution move by move

  1. 1. Red C1+5 (check, threatens mate next move, the General has no escape square)
    Why it works
    • Creates an immediate mating threat that must be answered.
    • Takes away the General's escape squares.
    What to watch out forNo real drawback in this position.
    1. Black -C-2 (threatens mate next move)
    1楚河 漢界帥卒車馬俥砲俥炮象兵士象將士砲炮
    1. Black -C-2
  2. 2. Red P6+1 (check, sacrifices the Soldier, the only legal reply, the General has no escape square)
    Why it works
    • Forcing: the opponent has only one reply, so the line cannot be avoided.
    • Takes away the General's escape squares.
    What to watch out for
    • Gives up the Soldier; the follow-up must be exact or the sacrifice is wasted.
    2. Black A5-4 (captures the Soldier, threatens mate next move)
    2楚河 漢界帥卒車馬俥砲俥炮象象士將士砲炮
    2. Black A5-4
  3. 3. Red R6+4 (captures the Advisor, check, sacrifices the Chariot)
    Why it works
    • Wins material: takes the Advisor.
    What to watch out for
    • Gives up the Chariot; the follow-up must be exact or the sacrifice is wasted.
    3. Black K5=4 (captures the Chariot, threatens mate next move)
    3楚河 漢界帥卒車馬砲俥炮象象將士砲炮
    3. Black K5=4
  4. 4. Red R3=6 (check, threatens mate next move, the only legal reply)
    Why it works
    • Forcing: the opponent has only one reply, so the line cannot be avoided.
    • Creates an immediate mating threat that must be answered.
    What to watch out forNo real drawback in this position.
    4. Black K4=5 (threatens mate next move)
    4楚河 漢界帥卒車馬砲俥炮象象將士砲炮
    4. Black K4=5
  5. 5. Red C2=5 (checkmate)
    Why it works
    • Ends the game: no legal reply remains.
    What to watch out forNo real drawback in this position.
    5楚河 漢界帥卒車馬砲俥炮象象將士砲炮
    5. Red C2=5

Variations and alternative defences

The source manual records 2 variations. Each branch starts from the move number shown.

Final position

Final position楚河 漢界帥卒車馬砲俥炮象象將士砲炮

Red wins after 5 moves. The General has no legal move.

Questions about this puzzle

Who moves first in "No. 174: Thrice Enraging Zhou Yu"?

Red moves first, as in every puzzle of Elegant Pastimes (Shiqing Yaqu, 1570).

How many moves does the solution take?

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

What is the key move?

The first move C1+5 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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