Chariot and Cannon Class, Game 05

Pieces on the board

Red has a General, a Chariot, a Cannon. Black has a General, 2 Advisors, a Chariot, a Soldier.

Solution move by move

1. 1. Red R7=3 (threatens mate next move)

   Why it works

   • Creates an immediate mating threat that must be answered.

   What to watch out for

   • Not forcing: the defender has 17 replies, so compare each one before playing it.

   1. Black K5=6

2. 2. Red C7+8 (threatens mate next move)

   Why it works

   • Creates an immediate mating threat that must be answered.

   What to watch out for

   • Not forcing: the defender has 19 replies, so compare each one before playing it.

   2. Black R4-7

3. 3. Red R3+2 (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.

   3. Black K6+1

4. 4. Red R3-1 (check)

   4. Black K6+1

5. 5. Red R3-7 (captures the Soldier, threatens mate next move)

   Why it works

   • Wins material: takes the Soldier.
   • Creates an immediate mating threat that must be answered.

   What to watch out for

   • Not forcing: the defender has 12 replies, so compare each one before playing it.

   5. Black R4+8 (check)

6. 6. Red K5=6 (captures the Chariot, threatens mate next move)

   Why it works

   • Wins material: takes the Chariot.
   • Creates an immediate mating threat that must be answered.

   What to watch out forNo real drawback in this position.

   6. Black K6=5

7. 7. Red R3=5 (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.

   7. Black K5=6

8. 8. Red K6=5 (threatens mate next move)

   Why it works

   • Creates an immediate mating threat that must be answered.

   What to watch out forNo real drawback in this position.

   8. Black A5-6

9. 9. Red R5=4 (checkmate)

   Why it works

   • Ends the game: no legal reply remains.

   What to watch out forNo real drawback in this position.

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 K5=6
  • If Black plays R4=5 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4=6 instead: Red mates immediately with C7+9. Try it on the board
  • If Black plays R4=3 instead: Red mates immediately with R3+2. Try it on the board
  • If Black plays R4=2 instead: Red mates immediately with C7+9. Try it on the board
  • If Black plays R4=1 instead: Red mates immediately with C7+9. Try it on the board
  • If Black plays R4-1 instead: Red mates immediately with C7+9. Try it on the board
• 2. Black R4-7
  • If Black plays R4=5 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4=6 instead: Red mates immediately with R3+2. Try it on the board
  • If Black plays R4=3 instead: Red mates immediately with R3+2. Try it on the board
  • If Black plays R4=2 instead: Red mates immediately with R3+2. Try it on the board
  • If Black plays R4=1 instead: Red mates immediately with R3+2. Try it on the board
  • If Black plays R4-1 instead: Red mates immediately with R3+2. Try it on the board
• 4. Black K6+1
  • If Black plays K6-1 instead: Red mates immediately with C7+1. Try it on the board
• 5. Black R4+8
  • If Black plays K6-1 instead: Red mates immediately with R3=4. Try it on the board
  • If Black plays R4=3 instead: Red mates immediately with R3=4. Try it on the board
  • If Black plays R4+1 instead: Red mates immediately with R3=4. Try it on the board
  • If Black plays R4+2 instead: Red mates immediately with R3+6. Try it on the board
  • If Black plays R4+3 instead: Red mates immediately with R3+6. Try it on the board
  • If Black plays R4+4 instead: Red mates immediately with R3+6. Try it on the board
• 6. Black K6=5
  • If Black plays A5-6 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays A5+4 instead: no immediate mate; the attack continues. Try it on the board
• 8. Black A5-6
  • If Black plays A5+4 instead: Red mates immediately with R5=4. Try it on the board

Final position

Nearby puzzles

• Chariot and Cannon Class, Game 02
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• Chariot and Cannon Class, Game 03
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• Chariot and Cannon Class, Game 04
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• Chariot and Cannon Class: Supplementary Game 3
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• Chariot and Cannon Class: Supplementary Game 4
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• Chariot and Cannon Class: Supplementary Game 1
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