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Problem Display

PID: 128088 (2K2b2/2P1p3/1NQ5/k6r/6p1/P1Pp4/3n4/5b2 w - - 0 1)

Isaryanov, Vladimir Petrovich

Sachove umeni (Ceskoslovensky sach), 1965

2K2b2/2P1p3/1NQ5/k6r/6p1/P1Pp4/3n4/5b2

#3

6 + 8

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Ka6
  - 2.Sc4+
    - 2...Ka7
      - 3.Qb7#
- 1...Sb1
  - 2.Sc4#
- 1...Sb3
  - 2.Sc4#
- 1...Sf3
  - 2.Sc4#
- 1...Sc4
  - 2.Sxc4#
- 1...Se4
  - 2.Sc4#
Tries
- 1.Sd5?
  - threat
    - 2.Qc5+
      - 2...Ka4
        3.Qb4#
      - 2...Ka6
        3.Sb4#
        3.Qb6#
    - 2.Qb6+
      - 2...Ka4
        3.Qb4#
  - 1...Rh6
    - 2.Qc5+
      - 2...Ka4
        3.Qb4#
      - 2...Ka6
        3.Sb4#
  - 1...Sb3
    - 2.Qb6+
      - 2...Ka4
        3.Qb4#
  - 1...Sc4
    - 2.Qc5+
      - 2...Ka4
        3.Qb4#
      - 2...Ka6
        3.Sb4#
  - 1...Se4
    - 2.Qb6+
      - 2...Ka4
        3.Qb4#
  - 1...e5
    - 2.a4
      - threat
        3.Qb5#
        3.Qa8#
  - 1...e6
    - 2.Kb7
      - threat
        3.Qa6#
    - 2.Sb4
      - threat
        3.Qa6#
      - 2...Bxb4
        3.axb4#
        3.cxb4#
  - 1...Rxd5!
Keys
- 1.Sd7!
  - threat
    - 2.Qb6+
      - 2...Ka4
        3.Qb4#
  - 1...Rh6
    - 2.Qc5+
      - 2...Ka4
        3.Qb4#
      - 2...Ka6
        3.Sb8#
  - 1...Sc4
    - 2.Qa8+
      - 2...Kb5
        3.a4#
  - 1...e5
    - 2.a4
      - threat
        3.Qb5#
        3.Qa8#
  - 1...e6
    - 2.Sb8
      - threat
        3.Qa6#

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