MESON Chess Problem Database

Problem Display
PID: 201776 (7k/6p1/5P2/4Q3/8/2K5/8/8 w - - 0 1)

Zuncke, Klaus-Peter

Land og Folk, 1979

7k/6p1/5P2/4Q3/8/2K5/8/8

#2

3 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qxg7#
      • 1...Kh7
        • 2.Qxg7#
      • 1...Kg8
        • 2.Qxg7#
      • 1...g5
        • 2.Qg7#
      • 1...g6
        • 2.Qg7#
      • 1...gxf6!
    • 1.Qe7?
      • threat
        • 2.Qxg7#
      • 1...Kh7
        • 2.Qxg7#
      • 1...Kg8
        • 2.Qxg7#
      • 1...g5
        • 2.Qg7#
      • 1...g6
        • 2.Qg7#
      • 1...gxf6!
  • Keys
    • 1.f7!
      • 1...Kh7
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::QAR1(B),XP(a)
        • K(b);P-FLIGHT::QAR1(B),XP(a)
        • P(a);::QAB1(B)
      • Refutation
        • P(a);XP(C)
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::QAR1(B),XP(a)
        • K(b);P-FLIGHT::QAR1(B),XP(a)
        • P(a);::QAB1(B)
      • Refutation
        • P(a);XP(C)
  • Actual
    • P(C);P_PINP(a)
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR2(B)
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