No. 84: Two Dragonflies Skim the Water

No. 84: Two Dragonflies Skim the Water楚河 漢界帥卒卒卒馬傌象傌兵炮將

"No. 84: Two Dragonflies Skim the Water" is a Xiangqi (Chinese Chess) puzzle from the collection Elegant Pastimes (Shiqing Yaqu, 1570). Red moves first and wins in 4 moves; the key first move is H7+6. 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 Horses, a Cannon, a Soldier. Black has a General, a Elephant, a Horse, 3 Soldiers.

Solution move by move

  1. 1. Red H7+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.
    1. Black E5-3 (threatens mate next move)
    1楚河 漢界帥卒卒卒馬傌兵炮象傌將
    1. Black E5-3
  2. 2. Red P5=4 (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.
    2. Black K6=5 (threatens mate next move)
    2楚河 漢界帥卒卒卒馬傌兵炮象傌將
    2. Black K6=5
  3. 3. Red H6-7 (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.
    3. Black E3+5 (threatens mate next move)
    3楚河 漢界帥卒卒卒馬傌象傌兵炮將
    3. Black E3+5
  4. 4. Red H8-6 (checkmate)
    Why it works
    • Ends the game: no legal reply remains.
    What to watch out forNo real drawback in this position.
    4楚河 漢界帥卒卒卒馬傌傌象兵炮將
    4. Red H8-6

Final position

Final position楚河 漢界帥卒卒卒馬傌傌象兵炮將

Red wins after 4 moves. The General has no legal move.

Questions about this puzzle

Who moves first in "No. 84: Two Dragonflies Skim the Water"?

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

How many moves does the solution take?

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

What is the key move?

The first move H7+6 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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