Meson Chess Problem Database

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Problem Display

PID: 258131 (KQ2R3/4n3/3p2n1/2p3N1/2k1B1r1/1p1p4/1p6/1N4B1 w - - 0 1)

Postma, Bernardus

Probleemblad, 1948

KQ2R3/4n3/3p2n1/2p3N1/2k1B1r1/1p1p4/1p6/1N4B1

#3

7 + 9

SOLUTION

SOUND
Sets
- 1...Sf5
  - 2.Bxd3+
    - 2...Kxd3
      - 3.Qxb3#
    - 2...Kd5
      - 3.Qb7#
- 1...Sc6
  - 2.Bxd3+
    - 2...Kxd3
      - 3.Qxb3#
    - 2...Kd5
      - 3.Sc3#
  - 2.Bxc6
    - threat
      - 3.Qb5#
    - 2...Rxg1
      - 3.Re4#
- 1...Sc8
  - 2.Bxd3+
    - 2...Kxd3
      - 3.Qxb3#
    - 2...Kd5
      - 3.Qb7#
- 1...Sg8
  - 2.Bxd3+
    - 2...Kxd3
      - 3.Qxb3#
    - 2...Kd5
      - 3.Qb7#
  - 2.Bc6
    - threat
      - 3.Qb5#
    - 2...Rxg1
      - 3.Re4#
Tries
- 1.Qxd6?
  - threat
    - 2.Qxc5#
  - 1...Kb4
    - 2.Qxc5+
      - 2...Ka4
        3.Sc3#
  - 1...Kb5
    - 2.Qxc5+
      - 2...Ka4
        3.Sc3#
      - 2...Ka6
        3.Bb7#
        3.Qb6#
  - 1...Rxg5
    - 2.Rb8
      - threat
        3.Bxd3#
        3.Qxd3#
        3.Qa6#
    - 2.Qa6+
      - 2...Kb4
        3.Rb8#
  - 1...Rxg1!
Keys
- 1.Qb7!
  - threat
    - 2.Qa6+
      - 2...Kb4
        3.Rb8#
  - 1...Rxg1
    - 2.Bxd3+
      - 2...Kxd3
        3.Qe4#
      - 2...Kd4
        3.Qe4#
  - 1...Rxe4
    - 2.Sa3+
      - 2...Kc3
        3.Sxe4#
  - 1...Sc6
    - 2.Bxd3+
      - 2...Kxd3
        3.Qxb3#
      - 2...Kd5
        3.Sc3#
        3.Qf7#
    - 2.Bd5+
      - 2...Kxd5
        3.Qf7#
    - 2.Bxc6
      - threat
        3.Bd5#
        3.Qb5#
      - 2...Rxg1
        3.Re4#

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