MESON Chess Problem Database

Problem Display
PID: 164707 (8/K7/8/kp6/8/8/1P6/3Q4 w - - 0 1)

Speckmann, Werner

Die Schwalbe, 1969

8/K7/8/kp6/8/8/1P6/3Q4

#2

3 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qa3#
      • 1...Ka4
        • 2.Qa3#
      • 1...b4
        • 2.Qa6#
      • 1...Kb4!
    • 1.b3?
      • 1...b4
        • 2.Qh5#
        • 2.Qd5#
      • 1...Kb4!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qa3#
      • 1...Ka4
        • 2.Qa3#
      • 1...b4
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);OGATE,SBLOCK::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • P(b);SBLOCK::QAR1(A)
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