MESON Chess Problem Database

Problem Display
PID: 85686 (5R2/6kp/8/b3N2K/8/8/8/Qn6 w - - 0 1)

Speckmann, Werner

Kennst du die Bibel?, 1967

5R2/6kp/8/b3N2K/8/8/8/Qn6

#2

4 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg6+?
      • 1...Bc3
        • 2.Qa7#
      • 1...Sc3!
    • 1.Sd7+?
      • 1...Sc3
        • 2.Qg1#
      • 1...Bc3!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qf7#
        • 2.Qg8#
      • 1...Kxf8
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • B(b);OGATE,P_SPINB(b)::QAR(A)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • S(B);CHECK
      • Vars
        • S(a);OGATE,P_SPINS(a)::QAR(A)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XR(D)::QAR1(A)
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