MESON Chess Problem Database

Problem Display
PID: 169245 (8/4K3/8/4k3/4B3/3P4/3P1P2/4Q3 w - - 0 1)

Lind, Ingemar

22/28 Place, SuperProblem 181. TT, 2017

8/4K3/8/4k3/4B3/3P4/3P1P2/4Q3

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.f4+?
      • 1...Kd4
        • 2.Qf2#
        • 2.Qg1#
        • 2.Qe3#
      • 1...Kxf4!
  • Keys
    • 1.Qg1!
      • 1...Kd4
        • 2.f4#
      • 1...Kf4
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(C)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB(A)+P(C)
      • K(a);S_FLIGHT::QAB1(A)
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