B. Two Chariots and Horse Class, Game 38

Pieces on the board

Red has a General, a Advisor, a Elephant, 2 Chariots, a Horse. Black has a General, 2 Advisors, 2 Elephants, 2 Chariots.

Solution move by move

1. 1. Red H2+4 (captures the Advisor, check)

   Why it works

   • Wins material: takes the Advisor.

   What to watch out forNo real drawback in this position.

   1. Black K5=6 (threatens mate next move)

2. 2. Red H4+3 (captures the Elephant, 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 Elephant.

   What to watch out forNo real drawback in this position.

   2. Black K6=5 (threatens mate next move)

3. 3. Red H3-4 (check)

   3. Black K5=6 (threatens mate next move)

4. 4. Red R2+9 (check, 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.

   4. Black K6+1 (threatens mate next move)

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)

6. 6. Red H4-2 (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.

   6. Black K6=5 (threatens mate next move)

7. 7. Red H2+3 (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+1 (threatens mate next move)

8. 8. Red R4=7

   Why it works–

   What to watch out for

   • Not forcing: the defender has 27 replies, so compare each one before playing it.
   • The Chariot stands where it can be captured.

   8. Black K5=4 (threatens mate next move)

9. 9. Red H3-4 (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.

   9. Black A4+5 (threatens mate next move)

10. 10. Red R2=5 (captures the Advisor, 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.
    • Wins material: takes the Advisor.
    • Creates an immediate mating threat that must be answered.

    What to watch out forNo real drawback in this position.

    10. Black K4-1 (threatens mate next move)

11. 11. Red R7-5 (captures the Chariot, sacrifices 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 for

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

    11. Black R4=3 (captures the Chariot)

12. 12. Red H4+6

    Why it works–

    What to watch out for

    • Not forcing: the defender has 21 replies, so compare each one before playing it.

    12. Black R3-6

13. 13. Red R5-1 (captures the Elephant)

    Why it works

    • Wins material: takes the Elephant.

    What to watch out for

    • Not forcing: the defender has 13 replies, so compare each one before playing it.

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 K5+1 instead: Red mates immediately with R2+8. Try it on the board
• 3. Black K5=6
  • If Black plays K5+1 instead: Red mates immediately with R2+8. Try it on the board
• 4. Black K6+1
  • If Black plays E5-7 instead: no immediate mate; the attack continues. Try it on the board
• 8. Black K5=4
  • If Black plays R3=2 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R3=1 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R3-1 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R3-2 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R3-3 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R3-4 instead: no immediate mate; the attack continues. Try it on the board
• 11. Black R4=3
  • If Black plays R4=5 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4=6 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4=7 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4=8 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4=9 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R4-1 instead: no immediate mate; the attack continues. Try it on the board
• 12. Black R3-6
  • If Black plays R3=4 instead: Red mates immediately with H6+8. Try it on the board
  • If Black plays R3=5 instead: no immediate mate; the attack continues. Try it on the board
  • If Black plays R3=6 instead: Red mates immediately with H6+8. Try it on the board
  • If Black plays R3=7 instead: Red mates immediately with H6+8. Try it on the board
  • If Black plays R3=8 instead: Red mates immediately with H6+8. Try it on the board
  • If Black plays R3=9 instead: Red mates immediately with H6+8. Try it on the board

Final position

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