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Problem Display

PID: 8771 (n3r3/Q3Rp1r/1ppP4/2k2Nn1/2P2N2/KB1p1p2/8/5b2 w - - 0 1)

Goethart, Gerhardus Hendrik

Chess Problems of GH Goethart, 1962

n3r3/Q3Rp1r/1ppP4/2k2Nn1/2P2N2/KB1p1p2/8/5b2

#3

8 + 11

SOLUTION

SOUND
Sets
- 1...Rg7
  - 2.Kb2
    - threat
      - 3.Qa3#
    - 2...Kb4
      - 3.Qa3#
- 1...Rxe7
  - 2.Qxe7
    - threat
      - 3.Qe3#
      - 3.Qe5#
      - 3.d7#
- 1...Rb8
  - 2.Re5#
- 1...Rc8
  - 2.Re5#
- 1...Rd8
  - 2.Re5#
- 1...Rf8
  - 2.Re5#
- 1...Rg8
  - 2.Re5#
- 1...Rh8
  - 2.Re5#
- 1...Be2
  - 2.Kb2
    - threat
      - 3.Qa3#
    - 2...Kb4
      - 3.Qa3#
- 1...Bg2
  - 2.Sxd3#
- 1...Bh3
  - 2.Sxd3#
- 1...Sh3
  - 2.Kb2
    - threat
      - 3.Qa3#
    - 2...Kb4
      - 3.Qa3#
- 1...f2
  - 2.Kb2
    - threat
      - 3.Qa3#
    - 2...Kb4
      - 3.Qa3#
Tries
- 1.Kb2?
  - threat
    - 2.Qa3#
  - 1...Kb4
    - 2.Qa3#
  - 1...Rh2+!
- 1.Qa5+?
  - 1...b5
    - 2.Sd5
      - threat
        3.Qb4#
      - 2...cxd5
        3.Qxb5#
    - 2.Rb7
      - threat
        3.Qb4#
  - 1...bxa5!
Keys
- 1.Re2!
  - threat
    - 2.Sxd3#
  - 1...Bxe2
    - 2.Kb2
      - threat
        3.Qa3#
      - 2...Kb4
        3.Qa3#
  - 1...Re3
    - 2.Qe7
      - threat
        3.Qxe3#
      - 2...Rxe2
        3.Sxd3#
      - 2...Rxe7
        3.Sxd3#
      - 2...Re4
        3.Sxd3#
      - 2...Re5
        3.Sxd3#
        3.Rxe5#
        3.Qxe5#
      - 2...Re6
        3.Sxd3#
      - 2...Se4
        3.Qe5#
      - 2...Se6
        3.d7#

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