MESON Chess Problem Database

Problem Display
PID: 273312 (B7/P7/8/8/8/1Q2PqR1/5P2/K5Nk w - - 0 1)

Orlik, Peter

diagrammes, 1978

B7/P7/8/8/8/1Q2PqR1/5P2/K5Nk

#2

8 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qe6?
      • threat
        • 2.Qh3#
        • 2.Qh6#
      • 1...Kh2
        • 2.Qh3#
      • 1...Qg2!
    • 1.Qb1?
      • threat
        • 2.Sxf3#
        • 2.Qh7#
      • 1...Kh2
        • 2.Sxf3#
      • 1...Qxa8
        • 2.Sf3#
        • 2.Qh7#
      • 1...Qg2
        • 2.Rh3#
      • 1...Qd5
        • 2.Qh7#
      • 1...Qc6
        • 2.Qh7#
      • 1...Qb7
        • 2.Qh7#
      • 1...Qe4!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Sxf3#
      • 1...Kh2
        • 2.Sxf3#
      • 1...Qxa8
        • 2.Sf3#
        • 2.Qh5#
      • 1...Qg2
        • 2.Rh3#
      • 1...Qe4
        • 2.Sf3#
        • 2.Qh5#
      • 1...Qd5
        • 2.Qh5#
      • 1...Qc6
        • 2.Sf3#
        • 2.Qh5#
      • 1...Qb7
        • 2.Sf3#
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR1(D)
      • Refutation
        • Q(b);
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::S(B),XQ(b)
        • Q(b);::R(F)
        • Q(b);::QAR(D)
      • Refutation
        • Q(b);
  • Actual
    • Q(D);
    • Threat
      • QAR(D)+S(B),XQ(b)
    • Vars
      • K(a);N_SPINQ(b),P-FLIGHT::S(B),XQ(b)
      • Q(b);::R(F)
      • Q(b);OGATE::QAR(D)
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