MESON Chess Problem Database

Problem Display
PID: 216851 (8/4N2B/1K3p2/4k3/8/1Q6/7P/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1976

8/4N2B/1K3p2/4k3/8/1Q6/7P/8

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sc6#
    • 1...Kf4
      • 2.Qg3#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Qe3#
      • 1...Kf4
        • 2.Qg3#
      • 1...f5!
    • 1.Sc6+?
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6!
  • Keys
    • 1.Bf5!
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(D)
    • K(a);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAR2(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);S_FLIGHT::S(D)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR1(B)
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