Problem Display
PID: 211860 (q3RBN1/1n4pK/5PNp/r2R1pkr/1pb4p/b6B/8/1n6 w - - 0 1)

Loustau, Jean-Marc

The Problemist, 1986

q3RBN1/1n4pK/5PNp/r2R1pkr/1pb4p/b6B/8/1n6

#5

8 + 13


SOLUTION


  • SOUND
  • Keys
    • 1.Re1!
      • threat
        • 2.Rg1#
      • 1...Qa7
        • 2.f7
          • threat
            • 3.Be7#
          • 2...Bb2
            • 3.Rd4
              • threat
                • 4.Be7#
                • 4.Rg1#
              • 3...Qxd4
                • 4.Be7+
                  • 4...Qf6
                    • 5.Rg1#
              • 3...Bxd4
                • 4.Rg1+
                  • 4...Bxg1
                    • 5.Be7#
          • 2...b3
            • 3.Rc5
              • threat
                • 4.Be7#
                • 4.Rg1#
              • 3...Qxc5
                • 4.Be7+
                  • 4...Qxe7
                    • 5.Rg1#
              • 3...Bxc5
                • 4.Rg1+
                  • 4...Bxg1
                    • 5.Be7#
      • 1...Qb8
        • 2.f7
          • threat
            • 3.Be7#
          • 2...Bb2
            • 3.Rde5
              • threat
                • 4.Be7#
                • 4.Rg1#
              • 3...Qxe5
                • 4.Be7+
                  • 4...Qf6
                    • 5.Rg1#
                  • 4...Qxe7
                    • 5.Rg1#
              • 3...Bxe5
                • 4.Rg1+
                  • 4...Bg3
                    • 5.Be7#
          • 2...b3
            • 3.Rd6
              • threat
                • 4.Be7#
                • 4.Rg1#
              • 3...Qxd6
                • 4.Be7+
                  • 4...Qxe7
                    • 5.Rg1#
                  • 4...Qf6
                    • 5.Rg1#
              • 3...Bxd6
                • 4.Rg1+
                  • 4...Bg3
                    • 5.Be7#

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