MESON Chess Problem Database

Problem Display
PID: 80026 (8/8/8/7K/Q4N2/2P3kN/7p/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Shakhmaty i Shashki v BSSR, 1983

8/8/8/7K/Q4N2/2P3kN/7p/8

#2

5 + 2

5454 Near Snap 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Qa2?
      • threat
        • 2.Qf2#
        • 2.Qg2#
      • 1...h1Q
        • 2.Qf2#
      • 1...h1S
        • 2.Qg2#
      • 1...h1B
        • 2.Qf2#
      • 1...Kf3!
    • 1.Qd4?
      • threat
        • 2.Qf2#
        • 2.Qe3#
        • 2.Qd3#
      • 1...Kf3
        • 2.Qd3#
      • 1...h1Q
        • 2.Qf2#
      • 1...h1B
        • 2.Qf2#
      • 1...h1R
        • 2.Qf2#
      • 1...h1S!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qd3#
        • 2.Qf2#
        • 2.Qg2#
      • 1...Kf3
        • 2.Qd3#
      • 1...h1Q
        • 2.Qf2#
      • 1...h1S
        • 2.Qg2#
      • 1...h1B
        • 2.Qf2#
      • 1...h1R
        • 2.Qf2#
        • 2.Qg2#

This anticipates 144647(2011)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);P_PINS(B)::QAB1(C)
        • P(a);::QAR1(C)
        • P(a);::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
        • P(a);P_PINS(B)::QAB1(C)
        • P(a);::QAB1(C)
      • Refutation
        • P(a);
  • Actual
    • Q(C);
    • Threat
      • DUALS(3)
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • P(a);P_PINS(B)::QAB1(C)
      • P(a);::QAR1(C)
      • P(a);::QAB1(C)
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