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Problem Display

PID: 223689 (8/4p3/2pp4/6R1/4k3/6K1/3Q4/8 w - - 0 1)

Fraenkel, Febus Hirsch

Deutsche Schachzeitung, 1929

8/4p3/2pp4/6R1/4k3/6K1/3Q4/8

#3

3 + 4

6490	yacpdb	2020

SOLUTION

SOUND
Sets
- 1...c5
  - 2.Rd5
    - threat
      - 3.Qd3#
    - 2...c4
      - 3.Qd4#
- 1...d5
  - 2.Qc3
    - threat
      - 3.Re5#
    - 2...d4
      - 3.Qf3#
    - 2...e5
      - 3.Rxe5#
- 1...e5
  - 2.Qxd6
    - threat
      - 3.Rxe5#
    - 2...Ke3
      - 3.Rxe5#
- 1...e6
  - 2.Rg4+
    - 2...Ke5
      - 3.Qg5#
    - 2...Kf5
      - 3.Qf4#
      - 3.Qg5#
  - 2.Qxd6
    - threat
      - 3.Re5#
    - 2...Ke3
      - 3.Re5#
    - 2...e5
      - 3.Rxe5#
Tries
- 1.Rd5?
  - threat
    - 2.Qd3#
    - 2.Qd4#
  - 1...e5
    - 2.Qd3#
  - 1...c5
    - 2.Qd3#
  - 1...cxd5!
- 1.Qxd6?
  - threat
    - 2.Re5#
  - 1...Ke3
    - 2.Re5#
  - 1...e5
    - 2.Rxe5#
  - 1...exd6!
Keys
- 1.Rh5!
  - 1...c5
    - 2.Rd5
      - threat
        3.Qd3#
      - 2...c4
        3.Qd4#
  - 1...d5
    - 2.Qc3
      - threat
        3.Re5#
      - 2...d4
        3.Qf3#
      - 2...e5
        3.Rxe5#
  - 1...e5
    - 2.Qxd6
      - threat
        3.Rxe5#
      - 2...Ke3
        3.Rxe5#
  - 1...e6
    - 2.Qxd6
      - threat
        3.Re5#
      - 2...Ke3
        3.Re5#
      - 2...e5
        3.Rxe5#

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