MESON Chess Problem Database

Problem Display
PID: 80733 (8/8/N7/8/2p2Q2/k7/2K5/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Sp. HM., Buletin Problemistic, 1989

8/8/N7/8/2p2Q2/k7/2K5/8

#2

3 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1+?
      • 1...Ka2
        • 2.Sb4#
        • 2.Qb2#
      • 1...Ka4!
    • 1.Qd2?
      • threat
        • 2.Qa5#
      • 1...Ka2
        • 2.Qa5#
      • 1...Ka4
        • 2.Qb4#
      • 1...c3!
    • 1.Qe5?
      • threat
        • 2.Qa1#
        • 2.Qa5#
      • 1...Ka2
        • 2.Qb2#
        • 2.Qa5#
      • 1...c3
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qg5?
      • threat
        • 2.Qa5#
      • 1...Ka2
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qd6+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Ka2!
    • 1.Qc7?
      • threat
        • 2.Qa5#
      • 1...Ka2
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qf5?
      • threat
        • 2.Qa5#
      • 1...Ka2
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qf8+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Ka2!
  • Keys
    • 1.Qb8!
      • 1...Ka2
        • 2.Qb2#
      • 1...Ka4
        • 2.Qb4#
      • 1...c3
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAR(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
      • P(b);N_GUARD::QAR1(B)
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