MESON Chess Problem Database

Problem Display
PID: 20257 (1B2K3/5p2/QNk1p3/8/8/8/4nr2/8 w - - 0 1)

Rudenko, Valentin Fedorovich

1st Prize, Sachove umeni (Ceskoslovensky sach), 1956

1B2K3/5p2/QNk1p3/8/8/8/4nr2/8

#4

4 + 5

3976 FIDE Album (1956-1958) 1961
114 Springaren 2009
133 The Problemist Supplement 2016

SOLUTION

  • SOUND
  • Keys
    • 1.Ba7!
      • threat
        • 2.Qc8+
          • 2...Kb5
            • 3.Qc4+
              • 3...Ka5
                • 4.Qa4#
      • 1...Kd6
        • 2.Qb5
          • threat
            • 3.Bb8#
          • 2...e5
            • 3.Sc4+
              • 3...Ke6
                • 4.Qxe5#
              • 3...Kc7
                • 4.Qd7#
            • 3.Bb8+
              • 3...Ke6
                • 4.Qxe5#
            • 3.Qd5+
              • 3...Kc7
                • 4.Qd7#
            • 3.Qc4
              • threat
                • 4.Sc8#
                • 4.Bb8#
      • 1...Rf4
        • 2.Sc4+
          • 2...Kd5
            • 3.Qb5+
              • 3...Ke4
                • 4.Sd2#
          • 2...Kc7
            • 3.Qb6+
              • 3...Kc8
                • 4.Sd6#
                • 4.Qc6#
                • 4.Qb8#
      • 1...Sc3
        • 2.Sd7+
          • 2...Kd5
            • 3.Qb7+
              • 3...Kc4
                • 4.Se5#
              • 3...Kd6
                • 4.Bc5#
                • 4.Bb8#

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