Chariot Strikes the Marsh River
"Chariot Strikes the Marsh River" is a Xiangqi (Chinese Chess) puzzle from the collection Hundred Game Manual. Red moves first and wins in 11 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 Elephants, a Chariot, a Horse, a Cannon, a Soldier. Black has a General, 2 Advisors, a Elephant, 2 Chariots, a Cannon, 2 Soldiers.
Solution move by move
- 1. Red R2+5Why it works
- Creates an immediate mating threat that must be answered.
- Takes away the General's escape squares.
What to watch out for1. Black E5-71. Black E5-7 - 2. Red R2=3Why it works
- Forcing: the opponent has only one reply, so the line cannot be avoided.
- Wins material: takes the Elephant.
- Creates an immediate mating threat that must be answered.
- Takes away the General's escape squares.
What to watch out for2. Black A5-62. Black A5-6 - 3. Red E3-5Why it works
- Creates an immediate mating threat that must be answered.
What to watch out for- Not forcing: the defender has 31 replies, so compare each one before playing it.
3. Black R7-93. Black R7-9 - 4. Red P6+1Why it works
- Forcing: the opponent has only one reply, so the line cannot be avoided.
What to watch out for4. Black K4=54. Black K4=5 - 5. Red C1=9Why it works
- Creates an immediate mating threat that must be answered.
What to watch out for- Not forcing: the defender has 33 replies, so compare each one before playing it.
5. Black R3=45. Black R3=4 - 6. Red K6+1Why it works
- Wins material: takes the Chariot.
- Creates an immediate mating threat that must be answered.
What to watch out for- Not forcing: the defender has 24 replies, so compare each one before playing it.
6. Black C5=16. Black C5=1 - 7. Red H8-7Why it works
- Creates an immediate mating threat that must be answered.
What to watch out for- Not forcing: the defender has 25 replies, so compare each one before playing it.
7. Black -A+57. Black -A+5 - 8. Red C9=8Why it worksWhat to watch out for
- Not forcing: the defender has 27 replies, so compare each one before playing it.
8. Black R7+88. Black R7+8 - 9. Red K6+1Why it worksWhat to watch out for
- Not forcing: the defender has 32 replies, so compare each one before playing it.
9. Black R7=29. Black R7=2 - 10. Red C8+5Why it works
- Creates an immediate mating threat that must be answered.
What to watch out for- Gives up the Cannon; the follow-up must be exact or the sacrifice is wasted.
- Not forcing: the defender has 31 replies, so compare each one before playing it.
10. Black R2-810. Black R2-8 - 11. Red H7+8Why it works
- Wins material: takes the Chariot.
What to watch out for- Not forcing: the defender has 15 replies, so compare each one before playing it.
11. Red H7+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.
- 1. Black E5-7
- If Black plays A5-6 instead: Red mates immediately with R2=4. Try it on the board
- 3. Black R7-9
- If Black plays C5=6 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C5-1 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays R7=8 instead: Red mates immediately with R3=4. Try it on the board
- If Black plays R7=9 instead: Red mates immediately with R3=4. Try it on the board
- If Black plays R7=6 instead: Red mates immediately with R3=4. Try it on the board
- If Black plays R7-1 instead: Red mates immediately with R3=4. Try it on the board
- 5. Black R3=4
- If Black plays C5=6 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=7 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=8 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=9 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5-1 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays R3=5 instead: Red mates immediately with C9+5. Try it on the board
- 6. Black C5=1
- If Black plays C5=6 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=7 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=8 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=9 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=4 instead: Red mates immediately with C9+5. Try it on the board
- If Black plays C5=3 instead: Red mates immediately with C9+5. Try it on the board
- 7. Black -A+5
- If Black plays C1=2 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=3 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=4 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=5 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=6 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=7 instead: Red mates immediately with P6+1. Try it on the board
- 8. Black R7+8
- If Black plays C1=2 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=3 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=4 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=5 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=6 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=7 instead: no immediate mate; the attack continues. Try it on the board
- 9. Black R7=2
- If Black plays C1=2 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=3 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=4 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=5 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=6 instead: no immediate mate; the attack continues. Try it on the board
- If Black plays C1=7 instead: no immediate mate; the attack continues. Try it on the board
- 10. Black R2-8
- If Black plays C1=2 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=3 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=4 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=5 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=6 instead: Red mates immediately with P6+1. Try it on the board
- If Black plays C1=7 instead: Red mates immediately with P6+1. Try it on the board
Final position
The record ends here.
Questions about this puzzle
Who moves first in "Chariot Strikes the Marsh River"?
Red moves first, as in every puzzle of Hundred Game Manual.
How many moves does the solution take?
11 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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- Chariot and Horse Cut Off the Supplies
- Chariot and Horse at the Gate
- Golden Chariot Enters the Sea
- Crossing the Sea to Conquer the East
- Galloping Horse Returns Home
- Zhuge Borrows the Wind
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