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Problem Display

PID: 144321 (8/8/8/1n6/8/6N1/NK1p1B2/3k4 w - - 0 1)

Birgfeld, Eduard Adolf Heinrich

diagrammes, 1973

8/8/8/1n6/8/6N1/NK1p1B2/3k4

#4

4 + 3

3713	Snap	2012

SOLUTION

SOUND
Keys
- 1.Kb3!
  - threat
    - 2.Kb2
      - 2...Sa3
        3.Sc3#
      - 2...Sc3
        3.Sxc3#
      - 2...Sd4
        3.Sc3#
      - 2...Sd6
        3.Sc3#
      - 2...Sa7
        3.Sc3#
      - 2...Sc7
        3.Sc3#
  - 1...Sd4+
    - 2.Kc3
      - 2...Se2+
        3.Kb2
        3...Sxg3
        4.Sc3#
        3...Sc1
        4.Sc3#
        3...Sg1
        4.Sc3#
        3...Sc3
        4.Sxc3#
        3...Sd4
        4.Sc3#
        3...Sf4
        4.Sc3#
      - 2...Sb5+
        3.Kb2
        3...Sa3
        4.Sc3#
        3...Sc3
        4.Sxc3#
        3...Sd4
        4.Sc3#
        3...Sd6
        4.Sc3#
        3...Sa7
        4.Sc3#
        3...Sc7
        4.Sc3#
      - 2...Sc2
        3.Kb2
        threat
        4.Sc3#
      - 2...Sb3
        3.Kb2
        threat
        4.Sc3#
      - 2...Sf3
        3.Kb2
        threat
        4.Sc3#
      - 2...Sf5
        3.Kb2
        threat
        4.Sc3#
      - 2...Sc6
        3.Kb2
        threat
        4.Sc3#
      - 2...Se6
        3.Kb2
        threat
        4.Sc3#

Anticipated by 43055(1935)

This is a version of 20059

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