MESON Chess Problem Database

Problem Display
PID: 62009 (3R1R2/2N1k1N1/4p2p/4nb2/2p3p1/K2pp3/4Q3/8 w - - 0 1)

Hermanson, Halvar

Deutsche Schachblatter, 1962

3R1R2/2N1k1N1/4p2p/4nb2/2p3p1/K2pp3/4Q3/8

#2

6 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qb4#
      • 1...Sc6
        • 2.Qf6#
      • 1...Sf7
        • 2.Rfe8#
      • 1...Sd7!
    • 1.Qh2?
      • threat
        • 2.Qh4#
      • 1...Sf3
        • 2.Qd6#
      • 1...Sg6
        • 2.Qd6#
      • 1...Sd7
        • 2.Rde8#
      • 1...Sf7!
  • Keys
    • 1.Qxe3!
      • threat
        • 2.Qc5#
      • 1...Sd7
        • 2.Sxf5#
      • 1...Sf7
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • S(e);OGATE::QAB1(A)
        • S(e);SBLOCK::R1(F)
      • Refutation
        • S(e);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • S(e);OGATE::QAB1(A)
        • S(e);SBLOCK::R1(E)
      • Refutation
        • S(e);
  • Actual
    • Q(A);XP(b)
    • Threat
      • QAB(A)
    • Vars
      • S(e);P_SPINP(g)::S(D),XB(f)
      • S(e);P_SPINP(g)::S(C)
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