MESON Chess Problem Database

Problem Display
PID: 256128 (2B1k3/2p1p3/4N1K1/b2Np1R1/5pp1/4B3/2r3Rp/4nr2 w - - 0 1)

Keller, Michael

Die Schwalbe, 1973

2B1k3/2p1p3/4N1K1/b2Np1R1/5pp1/4B3/2r3Rp/4nr2

#4

7 + 11

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Rd2!
      • threat
        • 2.Sdxc7+
          • 2...Rxc7
            • 3.Rd8#
          • 2...Bxc7
            • 3.Bd7#
      • 1...Rxd2
        • 2.Bb6
          • threat
            • 3.Sdxc7#
          • 2...Rxd5
            • 3.Rf5
              • threat
                • 4.Rf8#
          • 2...Bxb6
            • 3.Rf5
              • threat
                • 4.Rf8#
          • 2...Rc2
            • 3.Rf5
              • threat
                • 4.Rf8#
      • 1...Bxd2
        • 2.Bc5
          • threat
            • 3.Sdxc7#
          • 2...Rxc5
            • 3.Rf5
              • threat
                • 4.Rf8#
          • 2...Ba5
            • 3.Rf5
              • threat
                • 4.Rf8#
      • 1...Sd3
        • 2.Rxd3
          • threat
            • 3.Sdxc7+
              • 3...Rxc7
                • 4.Rd8#
              • 3...Bxc7
                • 4.Bd7#
            • 3.Sdxf4
              • threat
                • 4.Bd7#
                • 4.Rd8#
            • 3.Sc3
              • threat
                • 4.Bd7#
                • 4.Rd8#
            • 3.Sb4
              • threat
                • 4.Bd7#
                • 4.Rd8#
            • 3.Sb6
              • threat
                • 4.Bd7#
                • 4.Rd8#
          • 2...Rd1
            • 3.Rf5
              • threat
                • 4.Rf8#
          • 2...Rd2
            • 3.Sdxc7+
              • 3...Bxc7
                • 4.Bd7#
          • 2...Rc3
            • 3.Sdxc7+
              • 3...Rxc7
                • 4.Rd8#
              • 3...Bxc7
                • 4.Bd7#
            • 3.Sxc3
              • threat
                • 4.Bd7#
                • 4.Rd8#
          • 2...Rc4
            • 3.Sdxc7+
              • 3...Rxc7
                • 4.Rd8#
              • 3...Bxc7
                • 4.Bd7#
          • 2...Rc5
            • 3.Sdxc7+
              • 3...Rxc7
                • 4.Rd8#
              • 3...Bxc7
                • 4.Bd7#
          • 2...Rc6
            • 3.Sxc7+
              • 3...Rxc7
                • 4.Rd8#
              • 3...Bxc7
                • 4.Bd7#
          • 2...Bb6
            • 3.Sdxc7+
              • 3...Rxc7
                • 4.Rd8#
              • 3...Bxc7
                • 4.Bd7#
            • 3.Sxb6
              • threat
                • 4.Bd7#
                • 4.Rd8#

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