MESON Chess Problem Database

Problem Display
PID: 96288 (8/2K5/B7/8/4k3/7Q/6P1/6B1 w - - 0 1)

Bourd, Evgeny

Problemesis, 2004

8/2K5/B7/8/4k3/7Q/6P1/6B1

#2

5 + 1

6490 yacpdb 2009
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qf5#
  • Tries
    • 1.Be3?
      • threat
        • 2.Qe6#
      • 1...Kd5
        • 2.Qf5#
      • 1...Ke5!
    • 1.Bd3+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Kf4!
    • 1.Qg4+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Ke5!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Qf5#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd5
        • 2.Qe6#
      • 1...Ke5
        • 2.Qf5#

Anticipated by 10992(1897)

This anticipates 59066(2005)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR2(C)
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);P-FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);P-FLIGHT::QAR1(C)
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