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Problem Display

PID: 129223 (r7/4pp2/8/6Q1/2R5/5B2/1p3K2/1k6 w - - 0 1)

Scheel, Johan

Sachove umeni (Ceskoslovensky sach), 1938

r7/4pp2/8/6Q1/2R5/5B2/1p3K2/1k6

#3

4 + 5

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Ra2
  - 2.Qg1#
Keys
- 1.Bd5!
  - threat
    - 2.Qg1+
      - 2...Ka2
        3.Rc3#
        3.Ra4#
  - 1...Ka1
    - 2.Rc1+
      - 2...bxc1Q
        3.Qxc1#
      - 2...bxc1S
        3.Qxc1#
      - 2...bxc1B
        3.Qxc1#
      - 2...bxc1R
        3.Qxc1#
      - 2...b1Q
        3.Qe5#
      - 2...b1S
        3.Qe5#
      - 2...b1B
        3.Qe5#
      - 2...b1R
        3.Qe5#
  - 1...Ka2
    - 2.Ra4+
      - 2...Kb1
        3.Be4#
  - 1...Ra3
    - 2.Qg1+
      - 2...Ka2
        3.Ra4#
  - 1...Ra4
    - 2.Qg1+
      - 2...Ka2
        3.Rxa4#
    - 2.Qf5+
      - 2...Ka1
        3.Rxa4#
      - 2...Ka2
        3.Rxa4#
  - 1...Ra5
    - 2.Qg1+
      - 2...Ka2
        3.Ra4#
  - 1...Rb8
    - 2.Qg1+
      - 2...Ka2
        3.Ra4#
    - 2.Qf5+
      - 2...Ka1
        3.Ra4#
      - 2...Ka2
        3.Ra4#
  - 1...Rc8
    - 2.Qg1+
      - 2...Ka2
        3.Ra4#
    - 2.Qf5+
      - 2...Ka1
        3.Ra4#
      - 2...Ka2
        3.Ra4#
  - 1...Rd8
    - 2.Qg1+
      - 2...Ka2
        3.Ra4#
    - 2.Qf5+
      - 2...Ka1
        3.Ra4#
      - 2...Ka2
        3.Ra4#
  - 1...Rg8
    - 2.Qf5+
      - 2...Ka1
        3.Ra4#
      - 2...Ka2
        3.Ra4#
  - 1...e6
    - 2.Qg1+
      - 2...Ka2
        3.Ra4#

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