MESON Chess Problem Database

Problem Display
PID: 157987 (7k/4N1n1/QB6/4K1N1/8/8/8/8 w - - 0 1)

Abdullayev, Suleyman

Problemist Ukraini 11. TT, 2014

7k/4N1n1/QB6/4K1N1/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3?
      • threat
        • 2.Sf7#
        • 2.Qh7#
      • 1...Sh5
        • 2.Qh7#
      • 1...Se6
        • 2.Qh7#
      • 1...Se8
        • 2.Qh7#
      • 1...Sf5!
    • 1.Qc4?
      • threat
        • 2.Sg6#
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#
      • 1...Sh5
        • 2.Qg8#
      • 1...Se8
        • 2.Qg8#
      • 1...Se6!
    • 1.Qa2?
      • threat
        • 2.Sg6#
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#
      • 1...Sh5
        • 2.Qg8#
      • 1...Se8
        • 2.Qg8#
      • 1...Se6!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qh6#
      • 1...Sf5
        • 2.Kxf5#
      • 1...Se6
        • 2.Kxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAR1(C)
      • Refutation
        • S(a);
  • Actual
    • B(D);
    • Threat
      • QAR2(C)
    • Vars
      • S(a);::B(D)+K(A),XS(a)
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