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Problem Display

PID: 29308 (8/3Q4/8/8/3p2Pp/4kp2/5N2/5K2 w - - 0 1)

Dobbs, Gilbert S

Chess, 1938

8/3Q4/8/8/3p2Pp/4kp2/5N2/5K2

#3

4 + 4

SOLUTION

SOUND
Sets
- 1...Kf4
  - 2.Qf5+
    - 2...Ke3
      - 3.Qg5#
    - 2...Kg3
      - 3.Qe5#
Tries
- 1.Ke1?
  - threat
    - 2.Qf5
      - threat
        3.Sd1#
        3.Qe4#
        3.Qe5#
        3.Qg5#
    - 2.Qd6
      - threat
        3.Qe5#
        3.Qh6#
    - 2.Qc7
      - threat
        3.Qe5#
        3.Qc1#
  - 1...d3
    - 2.Qd6
      - threat
        3.Qe5#
      - 2...d2+
        3.Qxd2#
  - 1...Kf4!
- 1.Qe6+?
  - 1...Kf4
    - 2.Qf5+
      - 2...Ke3
        3.Qg5#
      - 2...Kg3
        3.Qe5#
    - 2.Qf6+
      - 2...Ke3
        3.Qg5#
        3.Qh6#
      - 2...Kg3
        3.Qe5#
        3.Qd6#
  - 1...Kd2!
- 1.Qd6?
  - threat
    - 2.Qh6#
  - 1...d3
    - 2.Ke1
      - threat
        3.Qe5#
      - 2...d2+
        3.Qxd2#
    - 2.Qb4
      - threat
        3.Sd1#
      - 2...d2
        3.Qe4#
  - 1...Kd2!
- 1.Qe7+?
  - 1...Kf4
    - 2.Qf6+
      - 2...Ke3
        3.Qg5#
        3.Qh6#
      - 2...Kg3
        3.Qe5#
        3.Qd6#
  - 1...Kd2!
Keys
- 1.Qb5!
  - threat
    - 2.Qg5#
  - 1...Kd2
    - 2.Qb2+
      - 2...Ke3
        3.Qc1#
  - 1...Kf4
    - 2.Qf5+
      - 2...Ke3
        3.Qg5#
      - 2...Kg3
        3.Qe5#
  - 1...d3
    - 2.Qb4
      - threat
        3.Sd1#
      - 2...d2
        3.Qe4#

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