No. 150: Marshal Lü Soars Like a Hawk

No. 150: Marshal Lü Soars Like a Hawk楚河 漢界卒帥卒卒炮傌炮兵車車砲兵兵俥士將士俥

"No. 150: Marshal Lü Soars Like a Hawk" is a Xiangqi (Chinese Chess) puzzle from the collection Elegant Pastimes (Shiqing Yaqu, 1570). Red moves first and wins in 9 moves; the key first move is C2+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, a Horse, 2 Cannons, 3 Soldiers. Black has a General, 2 Advisors, 2 Chariots, a Cannon, 3 Soldiers.

Solution move by move

  1. 1. Red C2+5 (check, 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 forNo real drawback in this position.
    1. Black A6+5 (threatens mate next move)
    1楚河 漢界卒帥卒卒傌炮兵車車砲兵兵俥士士將炮俥
    1. Black A6+5
  2. 2. Red C2-1 (check, threatens mate next move, 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.
    • 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.
    2. Black A5-6 (threatens mate next move)
    2楚河 漢界卒帥卒卒傌炮兵車車砲兵兵俥炮士將士俥
    2. Black A5-6
  3. 3. Red R8=5 (check, sacrifices the Chariot)
    Why it works–
    What to watch out for
    • Gives up the Chariot; the follow-up must be exact or the sacrifice is wasted.
    3. Black K5+1 (captures the Chariot, threatens mate next move)
    3楚河 漢界卒帥卒卒傌炮兵車車砲兵兵將炮士士俥
    3. Black K5+1
  4. 4. Red P4+1 (check, sacrifices the Soldier)
    Why it works–
    What to watch out for
    • Gives up the Soldier; the follow-up must be exact or the sacrifice is wasted.
    4. Black K5=6 (captures the Soldier, threatens mate next move)
    4楚河 漢界卒帥卒卒傌炮兵車車砲兵將炮士士俥
    4. Black K5=6
  5. 5. Red C1+3 (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 (threatens mate next move)
    5楚河 漢界卒帥卒卒傌兵車車砲兵將炮炮士士俥
    5. Black K6+1
  6. 6. Red R1=4 (captures the Advisor, 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.
    • Wins material: takes the Advisor.
    • Creates an immediate mating threat that must be answered.
    What to watch out forNo real drawback in this position.
    6. Black K6=5 (threatens mate next move)
    6楚河 漢界卒帥卒卒傌兵車車砲兵將炮炮士俥
    6. Black K6=5
  7. 7. Red +P=6 (check, sacrifices the Soldier, 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 for
    • Gives up the Soldier; the follow-up must be exact or the sacrifice is wasted.
    7. Black K5=4 (captures the Soldier, threatens mate next move)
    7楚河 漢界卒帥卒卒傌兵車車砲將炮炮士俥
    7. Black K5=4
  8. 8. Red P7=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.
    8. Black K4=5 (threatens mate next move)
    8楚河 漢界卒帥卒卒傌兵車車砲將炮炮士俥
    8. Black K4=5
  9. 9. Red P6+1 (checkmate)
    Why it works
    • Ends the game: no legal reply remains.
    What to watch out forNo real drawback in this position.
    9楚河 漢界卒帥卒卒傌車車砲兵將炮炮士俥
    9. Red P6+1

Variations and alternative defences

What if Black defends differently? The alternatives below were checked with the rules engine; lines marked with a mating move lose at once, the others are worth trying on the analysis board.

Final position

Final position楚河 漢界卒帥卒卒傌車車砲兵將炮炮士俥

Red wins after 9 moves. The General has no legal move.

Questions about this puzzle

Who moves first in "No. 150: Marshal Lü Soars Like a Hawk"?

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

How many moves does the solution take?

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

What is the key move?

The first move C2+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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