MESON Chess Problem Database

Problem Display
PID: 146790 (8/8/4p3/Q5P1/pP2K3/P7/1n1R1R2/4k3 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Vahidov, Medzhnun

Canadian Chess Chat, 1983

8/8/4p3/Q5P1/pP2K3/P7/1n1R1R2/4k3

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Rde2#
  • Tries
    • 1.Rxb2?
      • 1...Kd1
        • 2.Rb1#
        • 2.Rf1#
      • 1...e5!
    • 1.Qb6?
      • threat
        • 2.Qe3#
      • 1...Sd1
        • 2.Rde2#
      • 1...Sc4!
    • 1.Qc5?
      • threat
        • 2.Qe3#
      • 1...Sd1
        • 2.Rde2#
      • 1...Sc4!
    • 1.Qa7?
      • threat
        • 2.Qe3#
      • 1...Sd1
        • 2.Rde2#
      • 1...Sc4!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Kf3#
        • 2.Kd4#
        • 2.Kf4#
      • 1...Sc4
        • 2.Qa1#
      • 1...Sd1
        • 2.Rde2#
      • 1...Sd3
        • 2.Kxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R1(A)
  • Tries
    • Try
      • R(A);XS(b)
      • Refutation
        • P(d);
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • S(b);SBLOCK::R1(A)
      • Refutation
        • S(b);
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • S(b);SBLOCK::R1(A)
      • Refutation
        • S(b);
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • S(b);SBLOCK::R1(A)
      • Refutation
        • S(b);
  • Actual
    • Q(F);
    • Threat
      • DUALS(3)
    • Vars
      • S(b);OGATE::QAR(F)
      • S(b);SBLOCK::R1(A)
      • S(b);::QAR(F)+K(E),XS(b)
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