MESON Chess Problem Database

Problem Display
PID: 77482 (6Q1/8/6K1/8/N2k2N1/8/2B5/8 w - - 0 1)

Cyrulik, Stepan Pavlovich

Problemist Pribuzhya, 1992

6Q1/8/6K1/8/N2k2N1/8/2B5/8

#2

5 + 1

5454 Near Snap 2009
133 The Problemist Supplement 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Qf8?
      • threat
        • 2.Qc5#
      • 1...Kc4
        • 2.Qc5#
      • 1...Kd5!
  • Keys
    • 1.Bd1!
      • 1...Kd3
        • 2.Qd5#
      • 1...Ke4
        • 2.Qc4#

Anticipated by 157507(0000), 11856(1972), 153252(1984), 15844(1988), 47359(1991)

This anticipates 232960(1994), 219476(1995), 245496(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(E)
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