MESON Chess Problem Database

Problem Display
PID: 80519 (8/6p1/6k1/8/4NK2/5P2/8/7R w - - 0 1)

Nunn, John DM

British Chess Magazine, 2007

8/6p1/6k1/8/4NK2/5P2/8/7R

#5

4 + 2

81 Chess 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Re1!
      • 1...Kh6
        • 2.Kf5
          • threat
            • 3.Rh1#
          • 2...g6+
            • 3.Kf6
              • threat
                • 4.Rh1#
              • 3...Kh7
                • 4.Sg5+
                  • 4...Kh6
                    • 5.Rh1#
                  • 4...Kg8
                    • 5.Re8#
                  • 4...Kh8
                    • 5.Re8#
                • 4.Kf7
                  • threat
                    • 5.Rh1#
                  • 4...Kh6
                    • 5.Rh1#
                  • 4...Kh8
                    • 5.Rh1#
          • 2...g5
            • 3.Kf6
              • threat
                • 4.Rh1#
              • 3...Kh7
                • 4.Sxg5+
                  • 4...Kh6
                    • 5.Rh1#
                  • 4...Kg8
                    • 5.Re8#
                  • 4...Kh8
                    • 5.Re8#
                • 4.Kf7
                  • threat
                    • 5.Rh1#
                  • 4...Kh6
                    • 5.Rh1#
                  • 4...Kh8
                    • 5.Rh1#
      • 1...Kf7
        • 2.Sg5+
          • 2...Kg6
            • 3.Kg4
              • threat
                • 4.Re6#
              • 3...Kh6
                • 4.Re7
                  • 4...Kg6
                    • 5.Re6#
                  • 4...g6
                    • 5.Rh7#
          • 2...Kf8
            • 3.Kf5
              • threat
                • 4.Kg6
                  • 4...Kg8
                    • 5.Re8#
              • 3...g6+
                • 4.Kxg6
                  • 4...Kg8
                    • 5.Re8#
                • 4.Kf6
                  • 4...Kg8
                    • 5.Re8#
      • 1...Kh7
        • 2.Sg5+
          • 2...Kg6
            • 3.Kg4
              • threat
                • 4.Re6#
              • 3...Kh6
                • 4.Re7
                  • 4...Kg6
                    • 5.Re6#
                  • 4...g6
                    • 5.Rh7#
          • 2...Kh6
            • 3.Kf5
              • threat
                • 4.Rh1#
              • 3...g6+
                • 4.Kf6
                  • 4...Kh5
                    • 5.Rh1#

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