MESON Chess Problem Database

Problem Display
PID: 236884 (8/k1K1p3/B7/3pn3/1N6/8/8/8 w - - 0 1)

Speckmann, Werner

Schach, 1990

8/k1K1p3/B7/3pn3/1N6/8/8/8

#5

3 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Bc8!
      • 1...Ka8
        • 2.Bb7+
          • 2...Ka7
            • 3.Sxd5
              • threat
                • 4.Sxe7
                  • threat
                    • 5.Sc8#
                • 4.Sc3
                  • threat
                    • 5.Sb5#
                • 4.Sb6
                  • threat
                    • 5.Sc8#
              • 3...Sc4
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
        • 2.Sxd5
          • threat
            • 3.Sb6+
              • 3...Ka7
                • 4.Bb7
                  • threat
                    • 5.Sc8#
            • 3.Bb7+
              • 3...Ka7
                • 4.Sxe7
                  • threat
                    • 5.Sc8#
                • 4.Sc3
                  • threat
                    • 5.Sb5#
                • 4.Sb6
                  • threat
                    • 5.Sc8#
            • 3.Sxe7
              • threat
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc8#
              • 3...Ka7
                • 4.Bb7
                  • threat
                    • 5.Sc8#
              • 3...Sd3
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf3
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
                • 4.Sc6
                  • threat
                    • 5.Bb7#
              • 3...Sc4
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sg4
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
                • 4.Sc6
                  • threat
                    • 5.Bb7#
              • 3...Sc6
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sxc6#
                    • 5.Sc8#
              • 3...Sg6
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
                • 4.Sc6
                  • threat
                    • 5.Bb7#
              • 3...Sd7
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf7
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc6#
                    • 5.Sc8#
            • 3.Sc3
              • threat
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sb5#
                • 4.Sb5
                  • threat
                    • 5.Bb7#
              • 3...Ka7
                • 4.Sb5+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sb5#
          • 2...Ka7
            • 3.Sxe7
              • threat
                • 4.Bb7
                  • threat
                    • 5.Sc8#
              • 3...Ka8
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sc8#
              • 3...Sd3
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf3
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sc4
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sg4
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sc6
                • 4.Sxc6+
                  • 4...Ka8
                    • 5.Bb7#
              • 3...Sg6
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
              • 3...Sd7
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf7
                • 4.Sc6+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
            • 3.Sc3
              • threat
                • 4.Sb5+
                  • 4...Ka8
                    • 5.Bb7#
                • 4.Bb7
                  • threat
                    • 5.Sb5#
              • 3...Ka8
                • 4.Bb7+
                  • 4...Ka7
                    • 5.Sb5#
                • 4.Sb5
                  • threat
                    • 5.Bb7#
            • 3.Bb7
              • threat
                • 4.Sxe7
                  • threat
                    • 5.Sc8#
                • 4.Sc3
                  • threat
                    • 5.Sb5#
                • 4.Sb6
                  • threat
                    • 5.Sc8#
              • 3...Sc4
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
          • 2...Sc4
            • 3.Bb7+
              • 3...Ka7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
          • 2...Sd7
            • 3.Bb7+
              • 3...Ka7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
                • 4.Sc3
                  • threat
                    • 5.Sb5#
          • 2...Sf7
            • 3.Bb7+
              • 3...Ka7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
      • 1...d4
        • 2.Bb7
          • threat
            • 3.Sc2
              • threat
                • 4.Sxd4
                  • threat
                    • 5.Sb5#
                • 4.Sa3
                  • threat
                    • 5.Sb5#
              • 3...Sc4
                • 4.Sxd4
                  • threat
                    • 5.Sb5#
                    • 5.Sc6#
              • 3...Sf7
                • 4.Sxd4
                  • threat
                    • 5.Sb5#
                    • 5.Sc6#
            • 3.Sd5
              • threat
                • 4.Sxe7
                  • threat
                    • 5.Sc8#
                • 4.Sb6
                  • threat
                    • 5.Sc8#
              • 3...Sc4
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sd7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
          • 2...d3
            • 3.Sd5
              • threat
                • 4.Sxe7
                  • threat
                    • 5.Sc8#
                • 4.Sc3
                  • threat
                    • 5.Sb5#
                • 4.Sb6
                  • threat
                    • 5.Sc8#
              • 3...Sc4
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
              • 3...Sf7
                • 4.Sxe7
                  • threat
                    • 5.Sc6#
                    • 5.Sc8#
      • 1...e6
        • 2.Bb7
          • 2...d4
            • 3.Sc2
              • threat
                • 4.Sxd4
                  • threat
                    • 5.Sb5#
                • 4.Sa3
                  • threat
                    • 5.Sb5#
              • 3...Sc4
                • 4.Sxd4
                  • threat
                    • 5.Sb5#
                    • 5.Sc6#
              • 3...Sf7
                • 4.Sxd4
                  • threat
                    • 5.Sb5#
                    • 5.Sc6#

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