MESON Chess Problem Database

Problem Display
PID: 246616 (8/8/2B2K2/5p1p/6k1/2Q5/8/8 w - - 0 1)

Chistyakov, Nikolay

Magadanskaya Pravda, 1990

8/8/2B2K2/5p1p/6k1/2Q5/8/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qf3#
    • 1...h4
      • 2.Qf3#
  • Tries
    • 1.Qh3+?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kxh3!
  • Keys
    • 1.Bg2!
      • 1...Kf4
        • 2.Qf3#
      • 1...Kh4
        • 2.Qh3#
      • 1...f4
        • 2.Qh3#
      • 1...h4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(A)
    • P(c);SBLOCK::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • B(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • P(b);SBLOCK::QAB1(A)
      • P(c);SBLOCK::QAB1(A)
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