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Problem Display

PID: 126846 (8/8/P1P5/P1P5/k1K5/1N6/1PN5/n2BB3 w - - 0 1)

Denkovski, Ivan

4th Place, Liga Problemista, 1987/4

8/8/P1P5/P1P5/k1K5/1N6/1PN5/n2BB3

#3

10 + 2

6490	yacpdb	2009

SOLUTION

SOUND
Tries
- 1.Sa3?
  - threat
    - 2.Sxa1#
  - 1...Sxb3
    - 2.Bxb3#
  - 1...Sc2!
- 1.Se3?
  - threat
    - 2.Sxa1#
  - 1...Sxb3
    - 2.Bxb3#
  - 1...Sc2!
- 1.Sb4?
  - threat
    - 2.Sa2
      - threat
        3.Sc3#
        3.Sxa1#
      - 2...Sxb3
        3.Bxb3#
    - 2.Sd5
      - threat
        3.Sxa1#
        3.Sc3#
        3.Sb6#
  - 1...Sxb3
    - 2.a7
      - 2...Kxa5
        3.a8Q#
        3.a8R#
  - 1...Sc2!
- 1.Scd4?
  - threat
    - 2.Sxa1#
  - 1...Sxb3
    - 2.Bxb3#
  - 1...Sc2!
- 1.Sc1?
  - threat
    - 2.Sxa1#
  - 1...Sxc2
    - 2.Bxc2#
  - 1...Sb3!
- 1.Sd2?
  - 1...Kxa5
    - 2.a7
      - threat
        3.a8Q#
        3.a8R#
      - 2...Ka4
        3.a8Q#
        3.a8R#
      - 2...Ka6
        3.a8Q#
        3.a8R#
  - 1...Sxc2
    - 2.a7
      - 2...Kxa5
        3.a8Q#
        3.a8R#
  - 1...Sb3!
- 1.Sbd4?
  - threat
    - 2.Sxa1#
  - 1...Sxc2
    - 2.Bxc2#
  - 1...Sb3!
Keys
- 1.a7!
  - threat
    - 2.a8S
      - threat
        3.Sb6#
  - 1...Sxc2
    - 2.Sd2
      - 2...Kxa5
        3.a8Q#
        3.a8R#
  - 1...Sxb3
    - 2.Sb4
      - 2...Kxa5
        3.a8Q#
        3.a8R#

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