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Problem Display

PID: 81263 (8/8/8/8/5N1K/7P/5kp1/4R1R1 w - - 0 1)

Asplund, Per Ivan Rune

Problemnoter, 1961

8/8/8/8/5N1K/7P/5kp1/4R1R1

#3

5 + 2

SOLUTION

SOUND
Sets
- 1...Kf3
  - 2.Rxg2
    - 2...Kxf4
      - 3.Rf2#
Tries
- 1.Kg5?
  - 1...Kg3
    - 2.Ref1
      - 2...Kh2
        3.Rxg2#
  - 1...Kf3!
- 1.Kh5?
  - 1...Kg3
    - 2.Ref1
      - 2...Kh2
        3.Rxg2#
  - 1...Kf3!
- 1.Re2+?
  - 1...Kf3
    - 2.Rgxg2
      - 2...Kxf4
        3.Rgf2#
  - 1...Kxg1!
- 1.Re6?
  - 1...Kf3
    - 2.Rxg2
      - 2...Kxf4
        3.Rf2#
  - 1...Kxg1!
- 1.Re7?
  - 1...Kf3
    - 2.Rxg2
      - 2...Kxf4
        3.Rf2#
  - 1...Kxg1!
- 1.Re8?
  - 1...Kf3
    - 2.Rxg2
      - 2...Kxf4
        3.Rf2#
  - 1...Kxg1!
- 1.Rxg2+?
  - 1...Kf3
    - 2.Ree2
      - 2...Kxf4
        3.Rgf2#
    - 2.Re6
      - 2...Kxf4
        3.Rf2#
    - 2.Re7
      - 2...Kxf4
        3.Rf2#
    - 2.Re8
      - 2...Kxf4
        3.Rf2#
    - 2.Rgg1
      - threat
        3.Rgf1#
      - 2...Kf2
        3.Rgf1#
      - 2...Kxf4
        3.Rgf1#
    - 2.Ra2
      - 2...Kxf4
        3.Rf2#
    - 2.Rb2
      - 2...Kxf4
        3.Rf2#
    - 2.Rc2
      - 2...Kxf4
        3.Rf2#
    - 2.Rd2
      - 2...Kxf4
        3.Rf2#
    - 2.Rge2
      - 2...Kxf4
        3.Rf1#
        3.Rf2#
    - 2.Rh2
      - 2...Kxf4
        3.Rf2#
  - 1...Kxe1!
Keys
- 1.Sxg2!
  - 1...Kf3
    - 2.Sf4
      - threat
        3.Rgf1#
      - 2...Kf2
        3.Rgf1#
      - 2...Kxf4
        3.Rgf1#

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