MESON Chess Problem Database

Problem Display
PID: 246264 (KN2RB2/6pP/p1p2p2/1ppkpp2/r6r/3P4/1PN1P3/5Rb1 w - - 0 1)

Johner, Hans

Neue Zurcher Zeitung, 1954

KN2RB2/6pP/p1p2p2/1ppkpp2/r6r/3P4/1PN1P3/5Rb1

#4

10 + 12

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Rf4!
      • threat
        • 2.Sd7
          • threat
            • 3.Sb6#
          • 2...c4
            • 3.e4+
              • 3...fxe4
                • 4.dxe4#
        • 2.e3
          • threat
            • 3.Sd7
              • threat
                • 4.Sb6#
          • 2...c4
            • 3.e4+
              • 3...fxe4
                • 4.dxe4#
          • 2...g5
            • 3.Sd7
              • threat
                • 4.Sb6#
                • 4.Sxf6#
          • 2...g6
            • 3.Sd7
              • threat
                • 4.Sb6#
                • 4.Sxf6#
      • 1...Raxf4
        • 2.Sd7
          • threat
            • 3.Sb6#
          • 2...c4
            • 3.Sb4+
              • 3...Kd4
                • 4.Bc5#
      • 1...exf4
        • 2.Sd7
          • threat
            • 3.Sb6#
          • 2...c4
            • 3.e4+
              • 3...fxe4
                • 4.dxe4#
              • 3...fxe4 ep
                • 4.Sb6#
      • 1...Re4
        • 2.Sd7
          • threat
            • 3.Sb6#
          • 2...c4
            • 3.Sb4+
              • 3...Kd4
                • 4.Bc5#
      • 1...Bd4
        • 2.e4+
          • 2...fxe4
            • 3.Sd7
              • threat
                • 4.Sb6#
              • 3...c4
                • 4.dxe4#
        • 2.Rxh4
          • threat
            • 3.h8Q
              • threat
                • 4.Qg8#
        • 2.Sd7
          • threat
            • 3.Sb6#
          • 2...c4
            • 3.Rxd4+
              • 3...Rxd4
                • 4.Se3#
                • 4.Sb6#
              • 3...exd4
                • 4.Sb6#
            • 3.e4+
              • 3...fxe4
                • 4.dxe4#

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