MESON Chess Problem Database

Problem Display
PID: 124519 (8/8/8/5K2/1kN3Q1/N5P1/2P5/8 w - - 0 1)

Lokker, Miklosh S

Pajtas, 1968

8/8/8/5K2/1kN3Q1/N5P1/2P5/8

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • 1...Ka4
        • 2.Qb3#
      • 1...Kc5!
    • 1.Qf4?
      • 1...Kc3
        • 2.Qd2#
      • 1...Kc5
        • 2.Qd6#
      • 1...Ka4!
  • Keys
    • 1.Qd1!
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka4
        • 2.c3#
      • 1...Kc5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);P-FLIGHT::QAB(E)+P(A)
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