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Problem Display

PID: 168002 (3b4/1Q6/2N5/2P3p1/p1N3p1/p2p2P1/p2P4/k6K w - - 0 1)

Dombrovskis, Alfreds A

Shakhmaty v SSSR, 1947

3b4/1Q6/2N5/2P3p1/p1N3p1/p2p2P1/p2P4/k6K

#3

7 + 8

6490	yacpdb	2018

SOLUTION

SOUND
Tries
- 1.Qb4?
  - threat
    - 2.Qxa3
      - threat
        3.Qc1#
        3.Qb2#
      - 2...Kb1
        3.Qb2#
    - 2.Qc3+
      - 2...Kb1
        3.Sxa3#
    - 2.Qxa4
      - threat
        3.Qd1#
      - 2...Kb1
        3.Qd1#
  - 1...Ba5
    - 2.Qxa3
      - threat
        3.Qc1#
        3.Qb2#
      - 2...Kb1
        3.Qb2#
  - 1...Bf6!
- 1.Qe7?
  - threat
    - 2.Qe1#
  - 1...Kb1
    - 2.Qe1+
      - 2...Kc2
        3.Sd4#
  - 1...Bxe7!
- 1.Qf7?
  - threat
    - 2.Qf1#
  - 1...Kb1
    - 2.Qf1+
      - 2...Kc2
        3.Sd4#
  - 1...Bf6!
Keys
- 1.Kh2!
  - threat
    - 2.Sb4
      - threat
        3.Qh1#
      - 2...Kb1
        3.Qh1#
    - 2.Sd4
      - threat
        3.Qh1#
    - 2.S6a5
      - threat
        3.Qh1#
    - 2.S6e5
      - threat
        3.Qh1#
    - 2.Sa7
      - threat
        3.Qh1#
    - 2.Se7
      - threat
        3.Qh1#
    - 2.Sb8
      - threat
        3.Qh1#
  - 1...Bb6
    - 2.Sd4
      - threat
        3.Qh1#
      - 2...Kb1
        3.Qh1#
  - 1...Ba5
    - 2.Sb4
      - threat
        3.Qh1#
      - 2...Kb1
        3.Qh1#
  - 1...Bf6
    - 2.S6e5
      - threat
        3.Qh1#
  - 1...Bc7
    - 2.S6e5
      - threat
        3.Qh1#
  - 1...Be7
    - 2.Sd4
      - threat
        3.Qh1#

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