MESON Chess Problem Database

Problem Display
PID: 56699 (7Q/8/prp3p1/1ppp4/8/2B3K1/1NkN4/8 w - - 0 1)

Rudenko, Valentin Fedorovich

1/2 Prize, Hebelt-70 JT, 1984

7Q/8/prp3p1/1ppp4/8/2B3K1/1NkN4/8

#4

5 + 8

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qf3
          • threat
            • 3.Qd3+
              • 3...Kc1
                • 4.Sb3#
                • 4.Qb1#
          • 2...c4
            • 3.Bd4
              • threat
                • 4.Qd1#
                • 4.Qc3#
              • 3...Kc1
                • 4.Qd1#
                • 4.Qc3#
              • 3...Kxd2
                • 4.Qd1#
              • 3...c3
                • 4.Qxc3#
      • 1...Kxc3
        • 2.Qc1+
          • 2...Kb4
            • 3.Sd3+
              • 3...Ka4
                • 4.Qa1#
              • 3...Ka5
                • 4.Qa3#
                • 4.Qa1#
          • 2...Kd4
            • 3.Sf3+
              • 3...Ke4
                • 4.Qf4#
      • 1...b4
        • 2.Qd1+
          • 2...Kxc3
            • 3.Sdc4
              • threat
                • 4.Qd3#
              • 3...dxc4
                • 4.Sa4#
              • 3...b3
                • 4.Qd2#
      • 1...c4
        • 2.Bb4
          • threat
            • 3.Qb1#
          • 2...c3
            • 3.Qd1+
              • 3...Kxb2
                • 4.Qb1#
        • 2.Bd4
          • threat
            • 3.Qd1#
          • 2...c3
            • 3.Qb1+
              • 3...Kxd2
                • 4.Qd1#
      • 1...d4
        • 2.Qb1+
          • 2...Kxc3
            • 3.Sbc4
              • threat
                • 4.Qb3#
              • 3...bxc4
                • 4.Se4#
              • 3...d3
                • 4.Qb2#
      • 1...a5
        • 2.Qf3
          • threat
            • 3.Qd3+
              • 3...Kc1
                • 4.Sb3#
                • 4.Qb1#
          • 2...a4
            • 3.Qd3+
              • 3...Kc1
                • 4.Qb1#
          • 2...c4
            • 3.Bd4
              • threat
                • 4.Qd1#
                • 4.Qc3#
              • 3...Kc1
                • 4.Qd1#
                • 4.Qc3#
              • 3...Kxd2
                • 4.Qd1#
              • 3...c3
                • 4.Qxc3#

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