MESON Chess Problem Database

Problem Display
PID: 218164 (8/8/8/8/4kPB1/2Q5/8/K5R1 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1979

8/8/8/8/4kPB1/2Q5/8/K5R1

#2

5 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bf3+?
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxf4!
    • 1.Bf5+?
      • 1...Kd5
        • 2.Rd1#
      • 1...Kxf5
        • 2.Qe5#
      • 1...Kxf4!
    • 1.Bd7?
      • 1...Kxf4
        • 2.Rg4#
      • 1...Kd5!
    • 1.Bc8?
      • 1...Kxf4
        • 2.Rg4#
      • 1...Kd5!
    • 1.Rc1?
      • 1...Kd5
        • 2.Qe5#
        • 2.Qd3#
      • 1...Kxf4!
    • 1.Rg3?
      • threat
        • 2.Qe5#
        • 2.Qc4#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Kd5!
  • Keys
    • 1.Be6!
      • 1...Kxf4
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R(B)
        • K(a);S_FLIGHT,XB(E)::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • B(E);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT,XP(D)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(D)::R1(B)
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