MESON Chess Problem Database

Problem Display
PID: 253571 (1n3N2/8/p7/P3p3/1N2P3/6P1/5QPq/5K1k w - - 0 1)

Renn, Albert

Schach-Echo, 1969

1n3N2/8/p7/P3p3/1N2P3/6P1/5QPq/5K1k

#4

8 + 5

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Sh7!
      • threat
        • 2.Sf6
          • 2...Sc6
            • 3.Sxc6
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
              • 3...Qh7
                • 4.Qg1#
              • 3...Qh8
                • 4.Qg1#
          • 2...Sd7
            • 3.Sxd7
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
              • 3...Qh7
                • 4.Qg1#
              • 3...Qh8
                • 4.Qg1#
        • 2.Sf8
          • 2...Sc6
            • 3.Sxc6
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
              • 3...Qh7
                • 4.Qg1#
              • 3...Qh8
                • 4.Qg1#
          • 2...Sd7
            • 3.Sxd7
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
              • 3...Qh7
                • 4.Qg1#
              • 3...Qh8
                • 4.Qg1#
      • 1...Sd7
        • 2.Sxa6
          • 2...Sc5
            • 3.Sxc5
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qxh7
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
          • 2...Sb6
            • 3.axb6
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qxh7
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
          • 2...Sf6
            • 3.Sxf6
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
              • 3...Qh7
                • 4.Qg1#
              • 3...Qh8
                • 4.Qg1#
          • 2...Sb8
            • 3.Sxb8
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qxh7
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
          • 2...Sf8
            • 3.Sxf8
              • 3...Qg1+
                • 4.Qxg1#
              • 3...Qxg2+
                • 4.Qxg2#
              • 3...Qxg3
                • 4.Qg1#
              • 3...Qh3
                • 4.Qg1#
              • 3...Qh4
                • 4.Qg1#
              • 3...Qh5
                • 4.Qg1#
              • 3...Qh6
                • 4.Qg1#
              • 3...Qh7
                • 4.Qg1#
              • 3...Qh8
                • 4.Qg1#

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