MESON Chess Problem Database

Problem Display
PID: 8893 (2b3q1/2p1p3/2Q1p1r1/kB4p1/1p6/bR6/4K3/1N6 w - - 0 1)

Froberg, Johan Hilding Laurentius

US Problem Bulletin, 1964

2b3q1/2p1p3/2Q1p1r1/kB4p1/1p6/bR6/4K3/1N6

#3

5 + 10

5862 An ABC of Chess Problems 1970

SOLUTION

  • SOUND
  • Sets
    • 1...Rg7
      • 2.Sxa3
        • threat
          • 3.Sc4#
          • 3.Qxc7#
    • 1...Ba6
      • 2.Qxa6#
    • 1...Bd7
      • 2.Qa6#
  • Tries
    • 1.Sxa3?
      • threat
        • 2.Sc4#
        • 2.Qxc7#
      • 1...bxa3
        • 2.Qxc7#
      • 1...Qd8
        • 2.Sc4#
      • 1...e5!
    • 1.Bd3?
      • threat
        • 2.Qb5#
      • 1...Ba6
        • 2.Qxa6#
      • 1...Bd7
        • 2.Qa6#
      • 1...Qe8!
    • 1.Bc4?
      • threat
        • 2.Qb5#
      • 1...Ba6
        • 2.Qxa6#
      • 1...Bd7
        • 2.Qa6#
      • 1...Qe8!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sc3
          • threat
            • 3.Bd3#
            • 3.Bc4#
            • 3.Qxc7#
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Qf7
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
        • 2.Bd7+
          • 2...Ka6
            • 3.Bxc8#
      • 1...Qh7
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
        • 2.Bd7+
          • 2...Ka6
            • 3.Bxc8#
      • 1...Qg7
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
        • 2.Bd7+
          • 2...Ka6
            • 3.Bxc8#
      • 1...Qd8
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Qe8
        • 2.Sxa3
          • threat
            • 3.Sc4#
            • 3.Qxc7#
          • 2...Qxb5+
            • 3.Qxb5#
      • 1...Qf8
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Qh8
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Rf6
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Rh6
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Bc1
        • 2.Bd3+
          • 2...Ka4
            • 3.Rxb4#
            • 3.Qxb4#
        • 2.Bc4+
          • 2...Ka4
            • 3.Rxb4#
            • 3.Qxb4#
            • 3.Qb5#
        • 2.Rxb4
          • threat
            • 3.Bd3#
            • 3.Bc4#
            • 3.Ra4#
      • 1...Bb2
        • 2.Bd3+
          • 2...Ka4
            • 3.Rxb4#
            • 3.Qxb4#
        • 2.Bc4+
          • 2...Ka4
            • 3.Rxb4#
            • 3.Qxb4#
            • 3.Qb5#
        • 2.Rxb4
          • threat
            • 3.Bd3#
            • 3.Bc4#
            • 3.Ra4#
      • 1...Ba6
        • 2.Qxc7+
          • 2...Kxb5
            • 3.Sc3#
      • 1...Bb7
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...Bd7
        • 2.Bc4+
          • 2...Ka4
            • 3.Qa7#
          • 2...Bb5
            • 3.Qxb5#
      • 1...e5
        • 2.Bc4+
          • 2...Ka4
            • 3.Qb5#
      • 1...c6
        • 2.Qa7+
          • 2...Kxb5
            • 3.Sxa3#
          • 2...Ba6
            • 3.Qxa6#

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