MESON Chess Problem Database

Problem Display
PID: 141004 (3RN3/K2R2p1/p2pkp2/2pn1n1P/2r5/1Np1p3/2Q4B/2b5 w - - 0 1)

Birnov, Zinovy Markovich

Shakhmaty v SSSR, 1950

3RN3/K2R2p1/p2pkp2/2pn1n1P/2r5/1Np1p3/2Q4B/2b5

#3

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxd4+
        • 2...Sxd4
          • 3.Sxg7#
          • 3.Qe4#
        • 2...cxd4
          • 3.Qe4#
    • 1...Re4
      • 2.Qxe4#
    • 1...Sb4
      • 2.Sc7#
    • 1...Sb6
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sg3
      • 2.Sxg7+
        • 2...Ke5
          • 3.Qf5#
    • 1...Sd4
      • 2.Sxg7#
      • 2.Qe4#
    • 1...Sh4
      • 2.Sxg7#
    • 1...Sh6
      • 2.Sxg7#
    • 1...Se7
      • 2.Sxg7+
        • 2...Kf7
          • 3.Qg6#
  • Tries
    • 1.Sd4+?
      • 1...Sxd4
        • 2.Sxg7#
        • 2.Qe4#
      • 1...cxd4
        • 2.Qe4#
      • 1...Rxd4!
    • 1.Sxc5+?
      • 1...Rxc5
        • 2.Qe4#
      • 1...dxc5!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Sxc5+
          • 2...Rxc5
            • 3.Qe4#
          • 2...dxc5
            • 3.Qxd5#
      • 1...Rf4
        • 2.Sxc5+
          • 2...Ke5
            • 3.Qe4#
          • 2...dxc5
            • 3.Qxd5#
      • 1...Sf4
        • 2.Sc7+
          • 2...Ke5
            • 3.Qd5#
      • 1...Sde7
        • 2.Sc7+
          • 2...Kf7
            • 3.Qd5#
      • 1...Sg3
        • 2.Sxg7+
          • 2...Ke5
            • 3.Qf5#
      • 1...Sfe7
        • 2.Sxg7+
          • 2...Kf7
            • 3.Qg6#
      • 1...Ra4
        • 2.Sxc5+
          • 2...dxc5
            • 3.Qxd5#
      • 1...Rb4
        • 2.Sxc5+
          • 2...dxc5
            • 3.Qxd5#
      • 1...Rd4
        • 2.Sxd4+
          • 2...Sxd4
            • 3.Sxg7#
            • 3.Qe4#
          • 2...cxd4
            • 3.Qe4#
      • 1...Rg4
        • 2.Sxc5+
          • 2...dxc5
            • 3.Qxd5#
      • 1...Rh4
        • 2.Sxc5+
          • 2...dxc5
            • 3.Qxd5#
      • 1...Ba3
        • 2.Qxe3+
          • 2...Re4
            • 3.Qxe4#
          • 2...Sdxe3
            • 3.Sc7#
          • 2...Sfxe3
            • 3.Sxg7#

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