MESON Chess Problem Database

Problem Display
PID: 137118 (5K2/5N2/4k3/8/8/8/2Q4B/8 w - - 0 1)

Gulamov, N

Kirillov, Valery Afanasievich

Koster, 1992

5K2/5N2/4k3/8/8/8/2Q4B/8

#2

4 + 1

6490 yacpdb 2010
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Se5?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf6
        • 2.Qg6#
      • 1...Kd5!
    • 1.Qe4+?
      • 1...Kd7
        • 2.Qe8#
      • 1...Kf6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qf5#
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf6
        • 2.Qf5#
      • 1...Kd7
        • 2.Qc8#

Anticipated by 222908(1926), 227921(1926), 30940(1937), 214872(1975), 227343(1984)

This anticipates 245851(2002)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
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