MESON Chess Problem Database

Problem Display
PID: 266630 (K7/R7/2k5/2P5/8/3P4/3P4/4R3 w - - 0 1)

Lustenberger, Franz

Schweizerische Schachzeitung, 2021

K7/R7/2k5/2P5/8/3P4/3P4/4R3

#4

6 + 1

SOLUTION

  • SOUND
  • Keys
    • 1.Rd7!
      • 1...Kb5
        • 2.Rc7
          • threat
            • 3.Rb1+
              • 3...Ka4
                • 4.Ra7#
              • 3...Ka5
                • 4.Ra7#
              • 3...Ka6
                • 4.Ra7#
          • 2...Ka4
            • 3.Rb1
              • threat
                • 4.Ra7#
              • 3...Ka3
                • 4.Ra7#
              • 3...Ka5
                • 4.Ra7#
            • 3.Rb7
              • threat
                • 4.Ra1#
              • 3...Ka3
                • 4.Ra1#
              • 3...Ka5
                • 4.Ra1#
          • 2...Kb4
            • 3.Rb1+
              • 3...Ka3
                • 4.Ra7#
              • 3...Ka4
                • 4.Ra7#
              • 3...Ka5
                • 4.Ra7#
          • 2...Ka5
            • 3.Rb1
              • threat
                • 4.Ra7#
              • 3...Ka4
                • 4.Ra7#
              • 3...Ka6
                • 4.Ra7#
            • 3.Rb7
              • threat
                • 4.Ra1#
              • 3...Ka4
                • 4.Ra1#
              • 3...Ka6
                • 4.Ra1#
          • 2...Ka6
            • 3.Rb1
              • 3...Ka5
                • 4.Ra7#
            • 3.Rb7
              • 3...Ka5
                • 4.Ra1#
      • 1...Kxc5
        • 2.Rc1+
          • 2...Kb4
            • 3.Rb7+
              • 3...Ka3
                • 4.Ra1#
              • 3...Ka4
                • 4.Ra1#
              • 3...Ka5
                • 4.Ra1#
          • 2...Kb5
            • 3.Rb7+
              • 3...Ka4
                • 4.Ra1#
              • 3...Ka5
                • 4.Ra1#
              • 3...Ka6
                • 4.Ra1#
          • 2...Kb6
            • 3.Rb7+
              • 3...Ka5
                • 4.Ra1#
              • 3...Ka6
                • 4.Ra1#
            • 3.Rd5
              • 3...Ka6
                • 4.Rc6#
      • 1...Kxd7
        • 2.Kb7
          • 2...Kd8
            • 3.Kc6
              • 3...Kc8
                • 4.Re8#

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