MESON Chess Problem Database

Problem Display
PID: 273794 (4K3/2Q5/8/8/N7/2N1P3/2p5/k7 w - - 0 1)

Petkovic, Miodrag

Mat, 1972

4K3/2Q5/8/8/N7/2N1P3/2p5/k7

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qb2#
      • 1...c1B
        • 2.Qb1#
      • 1...c1Q!
    • 1.Qb8?
      • threat
        • 2.Qb2#
      • 1...c1B
        • 2.Qb1#
      • 1...c1Q!
    • 1.Qb7?
      • threat
        • 2.Qb2#
      • 1...c1B
        • 2.Qb1#
      • 1...c1Q!
  • Keys
    • 1.Qh2!
      • 1...c1Q
        • 2.Qa2#
      • 1...c1S
        • 2.Qb2#
      • 1...c1B
        • 2.Qa2#
      • 1...c1R
        • 2.Qa2#
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • P(b);N_GUARD::QAR1(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • P(b);N_GUARD::QAR1(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • P(b);N_GUARD::QAR1(D)
      • Refutation
        • P(b);
  • Actual
    • Q(D);
    • Vars
      • P(b);OGATE::QAR1(D)
      • P(b);OGATE::QAB1(D)
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