MESON Chess Problem Database

Problem Display
PID: 9081 (2b5/r2p4/3p4/5n2/3p4/1Q1pN1NK/8/k7 w - - 0 1)

Froberg, Johan Hilding Laurentius

2nd Prize, Stella Polaris, 1968

2b5/r2p4/3p4/5n2/3p4/1Q1pN1NK/8/k7

#3

4 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Sc2#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qb2#
      • 1...Ra2
        • 2.Qd1#
      • 1...Rb7!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sd2
          • threat
            • 3.Qb1#
          • 2...Rb7
            • 3.Qa3#
      • 1...dxe3
        • 2.Sc3
          • threat
            • 3.Qb1#
          • 2...Rb7
            • 3.Qa2#
            • 3.Qa3#
      • 1...Ra2
        • 2.Qd1+
          • 2...Kb2
            • 3.Sc4#
      • 1...Ra3
        • 2.Qxa3+
          • 2...Kb1
            • 3.Sd2#
      • 1...Ra4
        • 2.Sd2
          • threat
            • 3.Qb1#
          • 2...Rb4
            • 3.Qa3#
      • 1...Ra5
        • 2.Sd2
          • threat
            • 3.Qb1#
          • 2...Rb5
            • 3.Qa3#
      • 1...Ra6
        • 2.Sd2
          • threat
            • 3.Qb1#
          • 2...Rb6
            • 3.Qa3#
      • 1...Rb7
        • 2.Qa3+
          • 2...Kb1
            • 3.Sd2#
      • 1...Rc7
        • 2.Sd2
          • threat
            • 3.Qb1#
            • 3.Qa3#
        • 2.Qa3+
          • 2...Kb1
            • 3.Sd2#
      • 1...Ra8
        • 2.Sd2
          • threat
            • 3.Qb1#
          • 2...Rb8
            • 3.Qa3#
      • 1...Ba6
        • 2.Sd2
          • threat
            • 3.Qb1#
            • 3.Qa3#
        • 2.Qa3+
          • 2...Kb1
            • 3.Sd2#
      • 1...Bb7
        • 2.Sc4
          • threat
            • 3.Qb2#
          • 2...Ra2
            • 3.Qd1#

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