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Problem Display

PID: 204092 (b7/1R6/8/5pp1/p1pppP2/PPk3bQ/2P5/2K5 w - - 0 1)

Oosterholt, Cornelis Johannes

De Maasbode, 1924

b7/1R6/8/5pp1/p1pppP2/PPk3bQ/2P5/2K5

#3

7 + 9

6490	yacpdb	2020

SOLUTION

SOUND
Sets
- 1...cxb3
  - 2.Rc7+
    - 2...Bc6
      - 3.Rxc6#
- 1...d3
  - 2.Qh8#
- 1...e3
  - 2.Qxf5
    - threat
      - 3.Qa5#
    - 2...cxb3
      - 3.Qd3#
      - 3.Qc8#
      - 3.Qc5#
    - 2...d3
      - 3.Qe5#
      - 3.Qf6#
- 1...gxf4
  - 2.Qxf5
    - threat
      - 3.Qa5#
    - 2...cxb3
      - 3.Qc8#
      - 3.Qc5#
    - 2...d3
      - 3.Qe5#
      - 3.Qf6#
Tries
- 1.Qxf5?
  - threat
    - 2.Qa5#
  - 1...cxb3
    - 2.Qc8#
    - 2.Qc5#
  - 1...d3
    - 2.Qe5#
    - 2.Qf6#
  - 1...Bxf4+!
- 1.Qxg3+?
  - 1...e3
    - 2.Qe1#
  - 1...d3!
Keys
- 1.fxg5!
  - threat
    - 2.Qxg3+
      - 2...d3
        3.Qe5#
      - 2...e3
        3.Qe1#
  - 1...cxb3
    - 2.Rc7+
      - 2...Bc6
        3.Rxc6#
  - 1...d3
    - 2.Qh8+
      - 2...Be5
        3.Qxe5#
  - 1...e3
    - 2.Qxg3
      - threat
        3.Qe1#
      - 2...cxb3
        3.Qc7#
      - 2...d3
        3.Qe5#
  - 1...f4
    - 2.Qf5
      - threat
        3.Qa5#
      - 2...cxb3
        3.Qc8#
        3.Qc5#
      - 2...d3
        3.Qe5#
        3.Qf6#
    - 2.Qc8
      - threat
        3.Qxc4#
      - 2...axb3
        3.Rxb3#

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