MESON Chess Problem Database

Problem Display
PID: 159138 (8/1B6/1Qp5/2K1k3/8/4N3/8/5R2 w - - 0 1)

Abdullayev, Elmar

Polski Zwiazek Szachowy, 2013

8/1B6/1Qp5/2K1k3/8/4N3/8/5R2

#2

5 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4+?
      • 1...Ke4
        • 2.Qb1#
      • 1...Ke6!
    • 1.Sg4+?
      • 1...Ke4
        • 2.Qb1#
      • 1...Ke6!
    • 1.Qc7+?
      • 1...Ke6
        • 2.Bc8#
        • 2.Qd6#
      • 1...Ke4!
    • 1.Qb2+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Ke6!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qe7#
        • 2.Qe8#
      • 1...Ke4
        • 2.Qd4#
      • 1...Ke6
        • 2.Qd6#
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAB(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAB(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::QAR1(D)
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