MESON Chess Problem Database

Problem Display
PID: 27898 (6Q1/8/B4K2/1Nk5/8/8/8/3N4 w - - 0 1)

Inostroza, Sergio

British Chess Magazine, 1986

6Q1/8/B4K2/1Nk5/8/8/8/3N4

#3

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Qa2?
      • 1...Kb4
        • 2.Qa3+
          • 2...Kc4
            • 3.Se3#
      • 1...Kb6
        • 2.Qa3
          • 2...Kc6
            • 3.Qd6#
      • 1...Kc6!
    • 1.Qb3?
      • 1...Kb6
        • 2.Qa3
          • 2...Kc6
            • 3.Qd6#
      • 1...Kc6!
    • 1.Qc8+?
      • 1...Kb4
        • 2.Qc3+
          • 2...Ka4
            • 3.Sb2#
            • 3.Qa3#
      • 1...Kb6!
    • 1.Qf8+?
      • 1...Kd5
        • 2.Qb4
          • 2...Kc6
            • 3.Qd6#
        • 2.Qd6+
          • 2...Kc4
            • 3.Sd4#
          • 2...Ke4
            • 3.Bb7#
        • 2.Qc8
          • 2...Ke4
            • 3.Qf5#
      • 1...Kb6
        • 2.Qa3
          • 2...Kc6
            • 3.Qd6#
      • 1...Kc4!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qd6+
          • 2...Kc4
            • 3.Sd4#
      • 1...Kb4
        • 2.Qa3+
          • 2...Kc4
            • 3.Se3#
        • 2.Qc3+
          • 2...Ka4
            • 3.Sb2#
            • 3.Qa3#
      • 1...Kc4
        • 2.Qc3+
          • 2...Kd5
            • 3.Bb7#
      • 1...Kd5
        • 2.Sb2
          • 2...Ke4
            • 3.Bb7#
          • 2...Kc5
            • 3.Qd6#
          • 2...Kc6
            • 3.Qd6#
        • 2.Qd6+
          • 2...Kc4
            • 3.Sd4#
          • 2...Ke4
            • 3.Bb7#
      • 1...Kb6
        • 2.Qa3
          • 2...Kc6
            • 3.Qd6#

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