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Problem Display

PID: 217358 (r6k/1p3Ppr/5ppp/3p4/3p4/4N3/4Q1Kn/b2b2n1 w - - 0 1)

Kraemer, Adolf Herrmann Rudolf Ferdinand

Deutsche Schachblatter, 1965

r6k/1p3Ppr/5ppp/3p4/3p4/4N3/4Q1Kn/b2b2n1

#5

4 + 14

6490	yacpdb	2020

SOLUTION

SOUND
Keys
- 1.Qb5!
  - threat
    - 2.Qe8+
      - 2...Rxe8
        3.fxe8Q#
        3.fxe8R#
  - 1...Ra2+
    - 2.Kh1
      - threat
        3.Qe8#
        3.f8Q#
        3.f8R#
      - 2...Bf3+
        3.Kxg1
        threat
        4.Qe8#
        4.f8Q#
        4.f8R#
        3...Rg2+
        4.Sxg2
        threat
        5.Qe8#
        5.f8Q#
        5.f8R#
        3...Ra8
        4.Qe8+
        4...Rxe8
        5.fxe8Q#
        5.fxe8R#
    - 2.Sc2
      - threat
        3.Qe8#
        3.f8Q#
        3.f8R#
      - 2...Rxc2+
        3.Qe2
        threat
        4.f8Q#
        4.f8R#
        3...Rxe2+
        4.Kh1
        threat
        5.f8Q#
        5.f8R#
        4...Re8
        5.fxe8Q#
        5.fxe8R#
        3...Rc8
        4.Qe8+
        4...Rxe8
        5.fxe8Q#
        5.fxe8R#
      - 2...Bf3+
        3.Kxg1
        threat
        4.Qe8#
        4.f8Q#
        4.f8R#
        3...Ra8
        4.Qe8+
        4...Rxe8
        5.fxe8Q#
        5.fxe8R#

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