MESON Chess Problem Database

Problem Display
PID: 123129 (8/1p4Q1/1P3R2/4K3/8/N1k5/8/2Nb4 w - - 0 1)

Boyer, Jean-Pierre

French Solving Championship, 1965

8/1p4Q1/1P3R2/4K3/8/N1k5/8/2Nb4

#3

6 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qg4?
      • threat
        • 2.Qd4#
      • 1...Kb2
        • 2.Qxd1
          • 2...Ka1
            • 3.Qd4#
          • 2...Kxa3
            • 3.Qb3#
          • 2...Kc3
            • 3.Qd4#
      • 1...Kd2
        • 2.Qf4+
          • 2...Ke1
            • 3.Qf2#
            • 3.Qb4#
          • 2...Kc3
            • 3.Qd4#
      • 1...Bxg4!
    • 1.Qc7+?
      • 1...Kd2
        • 2.Sb1+
          • 2...Ke1
            • 3.Qc3#
          • 2...Ke3
            • 3.Qc3#
            • 3.Qc5#
      • 1...Kb4
        • 2.Qc5+
          • 2...Ka4
            • 3.Rf4#
          • 2...Kxc5
            • 3.Sd3#
      • 1...Kb2!
    • 1.Qd7?
      • threat
        • 2.Qd4#
      • 1...Kb2
        • 2.Qxd1
          • 2...Ka1
            • 3.Qd4#
          • 2...Kxa3
            • 3.Qb3#
          • 2...Kc3
            • 3.Qd4#
      • 1...Kb4!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qd4#
      • 1...Kb2
        • 2.Qxd1
          • 2...Ka1
            • 3.Qd4#
          • 2...Kxa3
            • 3.Qb3#
          • 2...Kc3
            • 3.Qd4#
      • 1...Kd2
        • 2.Qe3+
          • 2...Kxe3
            • 3.Sc4#
      • 1...Kb4
        • 2.Qc5+
          • 2...Ka4
            • 3.Rf4#
          • 2...Kxc5
            • 3.Sd3#

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