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Problem Display

PID: 248716 (8/8/8/8/8/8/2QK4/k1n5 w - - 0 1)

Ebert, Hilmar

Deutsche Schachzeitung, 1978

8/8/8/8/8/8/2QK4/k1n5

#3

2 + 2

3713	Snap	2021
6490	yacpdb	2021

SOLUTION

SOUND
Sets
- 1...Sb3+
  - 2.Kc3
    - threat
      - 3.Qb2#
- 1...Sd3
  - 2.Kc3
    - 2...Sb2
      - 3.Qxb2#
    - 2...Sc1
      - 3.Qb2#
    - 2...Se1
      - 3.Qb2#
    - 2...Sf2
      - 3.Qb2#
    - 2...Sb4
      - 3.Qb2#
    - 2...Sf4
      - 3.Qb2#
    - 2...Sc5
      - 3.Qb2#
    - 2...Se5
      - 3.Qb2#
Tries
- 1.Qc3+?
  - 1...Ka2
    - 2.Kc2
      - threat
        3.Qb2#
        3.Qa5#
  - 1...Kb1!
Keys
- 1.Kc3!
  - threat
    - 2.Qb2#
  - 1...Sa2+
    - 2.Kb3
      - threat
        3.Qxa2#
        3.Qb2#
      - 2...Sc1+
        3.Qxc1#
  - 1...Se2+
    - 2.Qxe2
      - 2...Kb1
        3.Qb2#
  - 1...Sd3
    - 2.Qb3
      - 2...Sb2
        3.Qxb2#
      - 2...Sc1
        3.Qb2#
      - 2...Se1
        3.Qb2#
      - 2...Sf2
        3.Qb2#
      - 2...Sb4
        3.Qb2#
      - 2...Sf4
        3.Qb2#
      - 2...Sc5
        3.Qb2#
      - 2...Se5
        3.Qb2#

Anticipated by 112418(1974)

This anticipates 285410(2000)

FEATURES

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