MESON Chess Problem Database

Problem Display
PID: 212009 (k3n3/P3P3/1KNp4/2R5/8/8/3n4/8 w - - 0 1)

Beck, Alphonse

Lowenthal's Magazine, 1867

k3n3/P3P3/1KNp4/2R5/8/8/3n4/8

#4

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Sb4!
      • threat
        • 2.Rc8#
      • 1...Sc4+
        • 2.Rxc4
          • threat
            • 3.Rc8#
          • 2...Sc7
            • 3.e8Q+
              • 3...Sxe8
                • 4.Rc8#
            • 3.e8R+
              • 3...Sxe8
                • 4.Rc8#
            • 3.Rxc7
              • 3...d5
                • 4.Rc8#
                • 4.e8Q#
                • 4.e8R#
      • 1...dxc5
        • 2.Sd5
          • 2...Sc4+
            • 3.Ka6
              • 3...Sc7+
                • 4.Sxc7#
              • 3...Sb2
                • 4.Sb6#
              • 3...Sd2
                • 4.Sb6#
              • 3...Sa3
                • 4.Sb6#
              • 3...Se3
                • 4.Sb6#
              • 3...Sa5
                • 4.Sb6#
              • 3...Se5
                • 4.Sb6#
              • 3...Sb6
                • 4.Sxb6#
              • 3...Scd6
                • 4.Sb6#
              • 3...Sed6
                • 4.Sc7#
              • 3...Sf6
                • 4.Sc7#
              • 3...Sg7
                • 4.Sc7#
          • 2...Sb1
            • 3.Ka6
              • threat
                • 4.Sb6#
              • 3...Sc7+
                • 4.Sxc7#
          • 2...Sf1
            • 3.Ka6
              • threat
                • 4.Sb6#
              • 3...Sc7+
                • 4.Sxc7#
          • 2...Sb3
            • 3.Ka6
              • threat
                • 4.Sb6#
              • 3...Sc7+
                • 4.Sxc7#
          • 2...Sf3
            • 3.Ka6
              • threat
                • 4.Sb6#
              • 3...Sc7+
                • 4.Sxc7#
          • 2...Se4
            • 3.Ka6
              • threat
                • 4.Sb6#
              • 3...Sc7+
                • 4.Sxc7#
          • 2...c4
            • 3.Ka6
              • threat
                • 4.Sb6#
              • 3...Sc7+
                • 4.Sxc7#

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