MESON Chess Problem Database

Problem Display
PID: 157611 (1B6/5B2/2k5/K7/8/3n4/8/Q7 w - - 0 1)

Antipov, Viacheslav Pavlovich

Krasnaya iskra, 1986

1B6/5B2/2k5/K7/8/3n4/8/Q7

#2

4 + 2

5454 Near Snap 2016
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qc3#
  • Tries
    • 1.Qh1+?
      • 1...Kc5
        • 2.Qd5#
      • 1...Kd7!
    • 1.Qa4+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Kb7!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qc8#
      • 1...Kc5
        • 2.Qc3#
      • 1...Kb7
        • 2.Bd5#
      • 1...Kd7
        • 2.Qe8#

Anticipated by 183663(1915), 157601(1983)

This anticipates 219468(1991), 105387(1992), 245997(2009), 232490(2012)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • K(b);S_FLIGHT::B(C)
      • K(b);S_FLIGHT::QAB1(A)
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