MESON Chess Problem Database

Problem Display
PID: 191534 (7B/R7/4P3/8/P1P5/2K5/pp3P2/k7 w - - 0 1)

Laseker, R

Deutsches Wochenschach, 1917

7B/R7/4P3/8/P1P5/2K5/pp3P2/k7

#4

7 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rg1+
          • 2...b1Q
            • 3.Kd2#
          • 2...b1S+
            • 3.Kc2#
            • 3.Kb3#
            • 3.Kd3#
            • 3.Kb4#
          • 2...b1B
            • 3.Kd2#
            • 3.Kb3#
            • 3.Kb4#
          • 2...b1R
            • 3.Kc2#
            • 3.Kd2#
            • 3.Kd3#
      • 1...b1S+
        • 2.Kc2
          • threat
            • 3.Rg1#
          • 2...Sa3+
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Kb1
                • 4.Rg1#
        • 2.Kb3
          • threat
            • 3.Rg1#
          • 2...Sd2+
            • 3.Kc2
              • threat
                • 4.Rg1#
                • 4.Rg2#
                • 4.Rg3#
                • 4.Rg4#
                • 4.Rg5#
                • 4.Rg6#
                • 4.Ra7#
                • 4.Rb7#
                • 4.Rc7#
                • 4.Rd7#
                • 4.Re7#
                • 4.Rf7#
                • 4.Rh7#
                • 4.Rg8#
      • 1...b1Q
        • 2.Rg1
          • threat
            • 3.Kd2#
          • 2...Qxg1
            • 3.Kc2+
              • 3...Qg7
                • 4.Bxg7#
      • 1...b1R
        • 2.Rg1
          • threat
            • 3.Kc2#
            • 3.Kd2#
            • 3.Kd3#
          • 2...Rxg1
            • 3.Kc2+
              • 3...Rg7
                • 4.Bxg7#

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