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Problem Display

PID: 51662 (8/8/8/PQN5/K1p5/8/k1N5/7q w - - 0 1)

Morse, Christopher Jeremy

The Problemist, 2003

8/8/8/PQN5/K1p5/8/k1N5/7q

#3

5 + 3

SOLUTION

SOUND
Sets
- 1...Qe4
  - 2.Sxe4
    - 2...c3
      - 3.Sxc3#
      - 3.Qb3#
- 1...Qb7
  - 2.Sxb7
    - 2...c3
      - 3.Qb3#
  - 2.Qxb7
    - 2...c3
      - 3.Qb3#
- 1...Qb1
  - 2.Qxc4+
    - 2...Kb2
      - 3.Sd3#
    - 2...Qb3+
      - 3.Qxb3#
- 1...Qh6
  - 2.Sd3
    - threat
      - 3.Qb2#
    - 2...cxd3
      - 3.Qb3#
    - 2...Qc1
      - 3.Sxc1#
    - 2...Qg7
      - 3.Sc1#
    - 2...Qb6
      - 3.Sc1#
    - 2...Qc6
      - 3.Sc1#
    - 2...Qf6
      - 3.Sc1#
    - 2...Qh8
      - 3.Sc1#
    - 2...c3
      - 3.Qb3#
- 1...c3
  - 2.Qb3#
Tries
- 1.Qxc4+?
  - 1...Kb2
    - 2.Sd3+
      - 2...Kb1
        3.Qb3#
  - 1...Kb1!
Keys
- 1.Sd3!
  - threat
    - 2.Qb2#
  - 1...Qa1
    - 2.Qb4
      - 2...cxd3
        3.Qb3#
      - 2...Qb2
        3.Qxb2#
      - 2...Qc3
        3.Sc1#
      - 2...Qd4
        3.Sc1#
      - 2...Qe5
        3.Sc1#
      - 2...Qf6
        3.Sc1#
      - 2...Qg7
        3.Sc1#
      - 2...Qh8
        3.Sc1#
      - 2...Qb1
        3.Qa3#
      - 2...Qc1
        3.Sxc1#
      - 2...Qd1
        3.Qb2#
      - 2...Qe1
        3.Qb2#
      - 2...Qf1
        3.Qb2#
      - 2...Qg1
        3.Qb2#
      - 2...Qh1
        3.Qb2#
      - 2...c3
        3.Qb3#
  - 1...Qb1
    - 2.Qxc4+
      - 2...Qb3+
        3.Qxb3#

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