MESON Chess Problem Database

Problem Display
PID: 244676 (5B2/7p/3NQ3/6kp/8/8/8/7K w - - 0 1)

Chernyavsky, Mykola Vasilovich

Pravda, 2013

5B2/7p/3NQ3/6kp/8/8/8/7K

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...h4
      • 2.Qf5#
  • Tries
    • 1.Kg2?
      • 1...Kf4
        • 2.Bh6#
      • 1...Kh4
        • 2.Be7#
      • 1...h4
        • 2.Qf5#
      • 1...h6!
    • 1.Se4+?
      • 1...Kh4
        • 2.Be7#
      • 1...Kf4!
  • Keys
    • 1.Qe4!
      • 1...Kf6
        • 2.Qf5#
      • 1...h4
        • 2.Qf5#
      • 1...h6
        • 2.Be7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(D)
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • P(c);
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAR1(C)
      • P(b);SBLOCK::QAR1(C)
      • P(c);SBLOCK::B(D)
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