MESON Chess Problem Database

Problem Display
PID: 43580 (k6r/N5Qp/4P3/8/1pp4K/7p/Br6/8 w - - 0 1)

Goldstein, Alexander

1st Prize, Parallele 50, 1947

k6r/N5Qp/4P3/8/1pp4K/7p/Br6/8

#4

5 + 7

461 Schach-Express 1948
13255 Hoekstenen 1967
56 The Problemist 2012

SOLUTION

  • SOUND
  • Keys
    • 1.Bb1!
      • threat
        • 2.Be4+
          • 2...Kb8
            • 3.Qb7#
      • 1...Rxb1
        • 2.Sb5
          • threat
            • 3.Qa7#
          • 2...Kb8
            • 3.Qa7+
              • 3...Kc8
                • 4.Qc7#
                • 4.Qa8#
            • 3.Qc7+
              • 3...Ka8
                • 4.Qa7#
            • 3.Sd6
              • threat
                • 4.Qb7#
              • 3...Ka8
                • 4.Qb7#
          • 2...Ra1
            • 3.Sd6
              • threat
                • 4.Qb7#
              • 3...Kb8
                • 4.Qb7#
              • 3...Ra7
                • 4.Qxh8#
              • 3...Rb8
                • 4.Qxa1#
      • 1...Rc2
        • 2.Sb5
          • threat
            • 3.Qa7#
          • 2...Kb8
            • 3.Qa7+
              • 3...Kc8
                • 4.Qc7#
                • 4.Qa8#
            • 3.Qc7+
              • 3...Ka8
                • 4.Qa7#
            • 3.Sd6
              • threat
                • 4.Qb7#
              • 3...Ka8
                • 4.Qb7#
          • 2...Ra2
            • 3.Be4+
              • 3...Kb8
                • 4.Qxh8#
                • 4.Qb7#
                • 4.Qc7#
        • 2.Sc6
          • threat
            • 3.Qa7#
          • 2...Ra2
            • 3.Bxa2
              • threat
                • 4.Qa7#
      • 1...Rd2
        • 2.Be4+
          • 2...Rd5
            • 3.Bxd5+
              • 3...Kb8
                • 4.Qb7#
      • 1...Re2
        • 2.Sb5
          • threat
            • 3.Qa7#
          • 2...Re4+
            • 3.Bxe4+
              • 3...Kb8
                • 4.Qxh8#
                • 4.Qb7#
                • 4.Qc7#
          • 2...Kb8
            • 3.Qa7+
              • 3...Kc8
                • 4.Qc7#
                • 4.Qa8#
            • 3.Qc7+
              • 3...Ka8
                • 4.Qa7#
          • 2...Ra2
            • 3.Be4+
              • 3...Kb8
                • 4.Qxh8#
                • 4.Qb7#
                • 4.Qc7#
        • 2.Sc6
          • threat
            • 3.Qa7#
          • 2...Re4+
            • 3.Bxe4
              • threat
                • 4.Qa7#
          • 2...Ra2
            • 3.Bxa2
              • threat
                • 4.Qa7#
      • 1...Rc8
        • 2.Be4+
          • 2...Rc6
            • 3.Bxc6+
              • 3...Kb8
                • 4.Qb7#
            • 3.Qc7
              • threat
                • 4.Bxc6#
        • 2.Sxc8
          • threat
            • 3.Qa7#
          • 2...Kb8
            • 3.Sd6
              • threat
                • 4.Qb7#
              • 3...Ka8
                • 4.Qb7#
          • 2...Ra2
            • 3.Be4+
              • 3...Kb8
                • 4.Qb7#
            • 3.Sd6
              • threat
                • 4.Qb7#
              • 3...Kb8
                • 4.Qb7#
              • 3...Ra7
                • 4.Qf8#
                • 4.Qh8#
                • 4.Qg8#
      • 1...Rd8
        • 2.Be4+
          • 2...Rd5
            • 3.Bxd5+
              • 3...Kb8
                • 4.Qb7#

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