MESON Chess Problem Database

Problem Display
PID: 11764 (8/P7/3Q4/1k6/8/1K6/8/8 w - - 0 1)

Lokker, Miklosh S

Skakbladet, 1971

8/P7/3Q4/1k6/8/1K6/8/8

#2

3 + 1

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Tries
    • 1.Kc3?
      • 1...Ka4
        • 2.Qb4#
        • 2.Qa6#
      • 1...Ka5!
    • 1.Qb4+?
      • 1...Ka6
        • 2.a8Q#
        • 2.a8R#
      • 1...Kc6!
    • 1.Qc5+?
      • 1...Ka6
        • 2.a8Q#
      • 1...Kxc5!
    • 1.Qc6+?
      • 1...Ka5
        • 2.a8Q#
        • 2.a8R#
      • 1...Kxc6!
  • Keys
    • 1.a8S!
      • 1...Ka5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • P(C);
    • Vars
      • K(a);P-FLIGHT::QAB1(B)
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