MESON Chess Problem Database

Problem Display
PID: 260192 (N7/k7/p7/3R4/4K3/8/8/7B w - - 0 1)

Lustenberger, Franz

Schweizerische Schachzeitung, 1982

N7/k7/p7/3R4/4K3/8/8/7B

#4

4 + 2

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Keys
    • 1.Kd4!
      • threat
        • 2.Rd7+
          • 2...Kb8
            • 3.Sb6
              • 3...a5
                • 4.Rb7#
      • 1...Kb7
        • 2.Rd7+
          • 2...Kb8
            • 3.Sb6
              • 3...a5
                • 4.Rb7#
          • 2...Kc8
            • 3.Sb6+
              • 3...Kb8
                • 4.Rb7#
      • 1...Kxa8
        • 2.Rd8+
          • 2...Ka7
            • 3.Kc5
              • 3...a5
                • 4.Ra8#
      • 1...Kb8
        • 2.Rd7
          • threat
            • 3.Sb6
              • 3...a5
                • 4.Rb7#
          • 2...Kc8
            • 3.Sb6+
              • 3...Kb8
                • 4.Rb7#
          • 2...a5
            • 3.Sb6
              • 3...a4
                • 4.Rb7#
      • 1...a5
        • 2.Rb5
          • threat
            • 3.Sc7
              • 3...a4
                • 4.Rb7#
          • 2...Ka6
            • 3.Sc7+
              • 3...Ka7
                • 4.Rb7#
          • 2...a4
            • 3.Sc7
              • 3...a3
                • 4.Rb7#

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