MESON Chess Problem Database

Problem Display
PID: 10704 (Q6K/8/8/1P2k3/7P/7B/5B2/8 w - - 0 1)

Pavlenko, Viktor Grigorovich

2nd Prize, Molodoi Leninets, 1967

Q6K/8/8/1P2k3/7P/7B/5B2/8

#2

6 + 1

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kf6
        • 2.Qe6#
      • 1...Kxd5!
    • 1.Qa7?
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg7#
      • 1...Ke4!
    • 1.Qe8+?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd5
        • 2.Qe6#
      • 1...Kf6
        • 2.Bd4#
        • 2.Qe6#
      • 1...Kd6!
    • 1.Qf8?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.Qc8!
      • 1...Ke4
        • 2.Qf5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Kd5
        • 2.Qe6#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qe6#

Anticipated by 49566(0000), 2175(1858), 47351(1888), 181089(1904), 182335(1906), 182229(1906), 194004(1917), 195071(1918), 205689(1925), 174121(1926), 227459(1926), 227672(1926), 227673(1926), 227674(1926), 227676(1926), 77127(1948)

This anticipates 11832(1972), 12251(1976), 196647(1999), 248693(2007)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);P-FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);S_FLIGHT::QAB1(E)
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