No. 119: Strength to Match Ten Thousand

No. 119: Strength to Match Ten Thousand楚河 漢界俥帥卒車車炮卒馬象士傌兵士俥將炮

"No. 119: Strength to Match Ten Thousand" is a Xiangqi (Chinese Chess) puzzle from the collection Elegant Pastimes (Shiqing Yaqu, 1570). Red moves first and wins in 8 moves; the key first move is R2=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, a Soldier. Black has a General, 2 Advisors, a Elephant, 2 Chariots, a Horse, 2 Soldiers.

Solution move by move

  1. 1. Red R2=5 (captures the Advisor, check, sacrifices the Chariot, 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.
    • Wins material: takes the Advisor.
    • Takes away the General's escape squares.
    What to watch out for
    • Gives up the Chariot; the follow-up must be exact or the sacrifice is wasted.
    1. Black A6-5 (captures the Chariot, threatens mate next move)
    1楚河 漢界俥帥卒車車炮卒馬象傌兵士將炮
    1. Black A6-5
  2. 2. Red P6=5 (captures the Advisor, check, 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.
    What to watch out forNo real drawback in this position.
    2. Black K5=4 (threatens mate next move)
    2楚河 漢界俥帥卒車車炮卒馬象傌兵將炮
    2. Black K5=4
  3. 3. Red H3+4 (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 E5-7 (captures the Cannon, threatens mate next move)
    3楚河 漢界俥帥卒車車炮卒馬兵將傌象
    3. Black E5-7
  4. 4. Red H4-6 (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.
    4. Black P3=4 (threatens mate next move)
    4楚河 漢界俥帥卒車車炮卒馬傌兵將象
    4. Black P3=4
  5. 5. Red H6+8 (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.
    5. Black P4+1 (captures the Cannon, threatens mate next move)
    5楚河 漢界俥帥卒車車卒馬兵傌將象
    5. Black P4+1
  6. 6. Red H8-7 (check, sacrifices the Horse, 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 for
    • Gives up the Horse; the follow-up must be exact or the sacrifice is wasted.
    6. Black H1-3 (captures the Horse, threatens mate next move)
    6楚河 漢界俥帥卒車車卒馬兵將象
    6. Black H1-3
  7. 7. Red R9+9 (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.
    7. Black H3-2 (threatens mate next move)
    7楚河 漢界帥卒車車卒兵俥馬將象
    7. Black H3-2
  8. 8. Red R9=8 (captures the Horse, checkmate)
    Why it works
    • Ends the game: no legal reply remains.
    • Wins material: takes the Horse.
    What to watch out forNo real drawback in this position.
    8楚河 漢界帥卒車車卒兵俥將象
    8. Red R9=8

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 漢界帥卒車車卒兵俥將象

Red wins after 8 moves. The General has no legal move.

Questions about this puzzle

Who moves first in "No. 119: Strength to Match Ten Thousand"?

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

How many moves does the solution take?

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

What is the key move?

The first move R2=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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