No. 125: Five Tigers Descend to Sichuan

No. 125: Five Tigers Descend to Sichuan楚河 漢界帥卒卒車仕相馬傌俥象士炮傌士俥將砲

"No. 125: Five Tigers Descend to Sichuan" 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 R2+1. 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 Advisor, a Elephant, 2 Chariots, 2 Horses, a Cannon. Black has a General, 2 Advisors, a Elephant, a Chariot, a Horse, a Cannon, 2 Soldiers.

Solution move by move

  1. 1. Red R2+1 (check)
    1. Black K6+1 (threatens mate next move)
    1楚河 漢界帥卒卒車仕相馬傌俥象士炮傌士將俥砲
    1. Black K6+1
  2. 2. Red H8-7 (check, the General has no escape square)
    Why it works
    • Takes away the General's escape squares.
    What to watch out forNo real drawback in this position.
    2. Black A5+4 (threatens mate next move)
    2楚河 漢界帥卒卒車仕相馬傌傌俥士象士炮將俥砲
    2. Black A5+4
  3. 3. Red +H+6 (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.
    3. Black A4-5 (threatens mate next move)
    3楚河 漢界帥卒卒車仕相馬傌俥象士炮傌士將俥砲
    3. Black A4-5
  4. 4. Red H6+8 (check, the General has no escape square)
    Why it works
    • Takes away the General's escape squares.
    What to watch out forNo real drawback in this position.
    4. Black A5+4 (threatens mate next move)
    4楚河 漢界帥卒卒車仕相馬傌俥士象士炮將傌俥砲
    4. Black A5+4
  5. 5. Red R2-1 (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.
    5. Black K6-1 (threatens mate next move)
    5楚河 漢界帥卒卒車仕相馬傌俥士象士炮俥傌將砲
    5. Black K6-1
  6. 6. Red C9+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.
    6. Black E5-3 (threatens mate next move)
    6楚河 漢界帥卒卒車仕相馬傌俥士士俥炮傌象將砲
    6. Black E5-3
  7. 7. Red H8-7 (check, the General has no escape square)
    Why it works
    • Takes away the General's escape squares.
    What to watch out forNo real drawback in this position.
    7. Black E3+5 (threatens mate next move)
    7楚河 漢界帥卒卒車仕相馬傌俥傌士象士俥炮將砲
    7. Black E3+5
  8. 8. Red +H+6 (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.
    8. Black E5-3 (threatens mate next move)
    8楚河 漢界帥卒卒車仕相馬傌俥士士俥炮象傌將砲
    8. Black E5-3
  9. 9. Red R2+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 漢界帥卒卒車仕相馬傌俥士士炮象傌將俥砲
    9. Red R2+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 漢界帥卒卒車仕相馬傌俥士士炮象傌將俥砲

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

Questions about this puzzle

Who moves first in "No. 125: Five Tigers Descend to Sichuan"?

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 R2+1 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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