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Problem Display

PID: 249242 (8/p2K1n2/Pp6/k3p3/8/2PQ4/1P6/8 w - - 0 1)

Ohquist, Johannes

Deutsche Schachzeitung, 1894

8/p2K1n2/Pp6/k3p3/8/2PQ4/1P6/8

#3

5 + 5

6490	yacpdb	2021

SOLUTION

SOUND
Sets
- 1...Sg5
  - 2.Kc6
    - threat
      - 3.Qb5#
    - 2...Ka4
      - 3.Qb5#
    - 2...b5
      - 3.Qxb5#
- 1...Sh6
  - 2.Kc6
    - threat
      - 3.Qb5#
    - 2...Ka4
      - 3.Qb5#
    - 2...b5
      - 3.Qxb5#
- 1...Sh8
  - 2.Kc6
    - threat
      - 3.Qb5#
    - 2...Ka4
      - 3.Qb5#
    - 2...b5
      - 3.Qxb5#
Tries
- 1.Kc6?
  - threat
    - 2.Qb5#
  - 1...Sd6
    - 2.Qd5+
      - 2...Ka4
        3.Qa2#
      - 2...Kxa6
        3.Qa2#
      - 2...Sb5
        3.Qxb5#
      - 2...b5
        3.Qa2#
    - 2.Qxd6
      - threat
        3.Qa3#
      - 2...Ka4
        3.Qa3#
        3.Qb4#
      - 2...Kxa6
        3.Qa3#
  - 1...Sd8+!
Keys
- 1.c4!
  - threat
    - 2.Qa3#
  - 1...Kb4
    - 2.Qc3+
      - 2...Ka4
        3.Qa3#
      - 2...Kc5
        3.b4#
  - 1...Kxa6
    - 2.Kc7
      - threat
        3.Qa3#
      - 2...Ka5
        3.Qa3#
  - 1...b5
    - 2.Qa3+
      - 2...Kb6
        3.c5#

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