MESON Chess Problem Database

Problem Display
PID: 186537 (4R3/8/8/4p3/1k2K3/R7/8/8 w - - 0 1)

Rohr, Hugo

La Strategie, 1912

4R3/8/8/4p3/1k2K3/R7/8/8

#4

3 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Ra7!
      • threat
        • 2.Rb8+
          • 2...Kc3
            • 3.Ra2
              • 3...Kc4
                • 4.Rc2#
          • 2...Kc5
            • 3.Ra6
              • 3...Kc4
                • 4.Rc6#
      • 1...Kb3
        • 2.Rc7
          • threat
            • 3.Rb8+
              • 3...Ka2
                • 4.Ra7#
              • 3...Ka3
                • 4.Ra7#
              • 3...Ka4
                • 4.Ra7#
          • 2...Ka2
            • 3.Rb7
              • threat
                • 4.Ra8#
              • 3...Ka1
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
            • 3.Rb8
              • threat
                • 4.Ra7#
              • 3...Ka1
                • 4.Ra7#
              • 3...Ka3
                • 4.Ra7#
          • 2...Kb2
            • 3.Rb8+
              • 3...Ka1
                • 4.Ra7#
              • 3...Ka2
                • 4.Ra7#
              • 3...Ka3
                • 4.Ra7#
          • 2...Ka3
            • 3.Rb7
              • threat
                • 4.Ra8#
              • 3...Ka2
                • 4.Ra8#
              • 3...Ka4
                • 4.Ra8#
            • 3.Rb8
              • threat
                • 4.Ra7#
              • 3...Ka2
                • 4.Ra7#
              • 3...Ka4
                • 4.Ra7#
          • 2...Ka4
            • 3.Rb7
              • threat
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
              • 3...Ka5
                • 4.Ra8#
            • 3.Rb8
              • threat
                • 4.Ra7#
              • 3...Ka3
                • 4.Ra7#
              • 3...Ka5
                • 4.Ra7#
          • 2...Kb4
            • 3.Rb8+
              • 3...Ka3
                • 4.Ra7#
              • 3...Ka4
                • 4.Ra7#
              • 3...Ka5
                • 4.Ra7#
        • 2.Rc8
          • threat
            • 3.Rb7+
              • 3...Ka2
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
              • 3...Ka4
                • 4.Ra8#
          • 2...Kb2
            • 3.Rb7+
              • 3...Ka1
                • 4.Ra8#
              • 3...Ka2
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
          • 2...Kb4
            • 3.Rb7+
              • 3...Ka3
                • 4.Ra8#
              • 3...Ka4
                • 4.Ra8#
              • 3...Ka5
                • 4.Ra8#
      • 1...Kc3
        • 2.Rc8+
          • 2...Kb2
            • 3.Rb7+
              • 3...Ka1
                • 4.Ra8#
              • 3...Ka2
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
          • 2...Kd2
            • 3.Ra1
              • 3...Ke2
                • 4.Rc2#
          • 2...Kb3
            • 3.Rb7+
              • 3...Ka2
                • 4.Ra8#
              • 3...Ka3
                • 4.Ra8#
              • 3...Ka4
                • 4.Ra8#
          • 2...Kb4
            • 3.Rb7+
              • 3...Ka3
                • 4.Ra8#
              • 3...Ka4
                • 4.Ra8#
              • 3...Ka5
                • 4.Ra8#
      • 1...Kc4
        • 2.Rb8
          • threat
            • 3.Rc7#
          • 2...Kc3
            • 3.Ra2
              • 3...Kc4
                • 4.Rc2#
          • 2...Kc5
            • 3.Ra6
              • 3...Kc4
                • 4.Rc6#
      • 1...Kb5
        • 2.Rb8+
          • 2...Kc5
            • 3.Ra6
              • 3...Kc4
                • 4.Rc6#
          • 2...Kc6
            • 3.Kxe5
              • 3...Kc5
                • 4.Rc7#
      • 1...Kc5
        • 2.Rb8
          • threat
            • 3.Ra6
              • 3...Kc4
                • 4.Rc6#
          • 2...Kc6
            • 3.Kxe5
              • 3...Kc5
                • 4.Rc7#
          • 2...Kd6
            • 3.Rc8
              • 3...Ke6
                • 4.Rc6#

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