Meson Chess Problem Database

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Problem Display

PID: 236070 (1QN1n3/3q3b/1P1pBP2/3R2K1/4k2N/5p2/1P3P2/8 w - - 0 1)

Shifrin, Semion

Variantim, 2017

1QN1n3/3q3b/1P1pBP2/3R2K1/4k2N/5p2/1P3P2/8

#3

10 + 6

SOLUTION

SOUND
Sets
- 1...Qa4
  - 2.Qxd6
    - threat
      - 3.Re5#
      - 3.Qf4#
      - 3.Qe5#
    - 2...Sxd6
      - 3.Sxd6#
    - 2...Qd4
      - 3.Rxd4#
- 1...Qb5
  - 2.Qxd6
    - threat
      - 3.Qf4#
      - 3.Qe5#
    - 2...Qxd5+
      - 3.Qxd5#
    - 2...Sxd6
      - 3.Sxd6#
- 1...Qa7
  - 2.Qxa7
    - threat
      - 3.Qa4#
      - 3.Qxh7#
  - 2.bxa7
    - threat
      - 3.Qb4#
- 1...Qc7
  - 2.Qxc7
    - threat
      - 3.Qc2#
      - 3.Qc4#
      - 3.Qxh7#
    - 2...Sxc7
      - 3.Sxd6#
  - 2.bxc7
    - threat
      - 3.Qb4#
Keys
- 1.Qa8!
  - threat
    - 2.Rd4+
      - 2...Kxd4
        3.Qd5#
      - 2...Ke5
        3.Qd5#
  - 1...Qg7+
    - 2.fxg7
      - threat
        3.Qa4#
  - 1...Qxe6
    - 2.Rxd6+
      - 2...Ke5
        3.Sxf3#
      - 2...Qd5+
        3.Qxd5#
  - 1...Sxf6
    - 2.Qa4+
      - 2...Qxa4
        3.Sxd6#
  - 1...Qb5
    - 2.Sf5
      - threat
        3.Sg3#
      - 2...Qxd5
        3.Qxd5#
      - 2...Bxf5
        3.Bxf5#
  - 1...Qc6
    - 2.Qxc6
      - threat
        3.Qa4#
        3.Qc2#
        3.Qc4#
  - 1...Bg8
    - 2.Rd4+
      - 2...Kxd4
        3.Qd5#
      - 2...Ke5
        3.Re4#
        3.Qe4#
        3.Qd5#
  - 1...Sc7
    - 2.Qa4+
      - 2...Qxa4
        3.Sxd6#

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