MESON Chess Problem Database

Problem Display
PID: 47186 (8/8/N1P2B2/1P1k4/8/8/4K2Q/8 w - - 0 1)

Willmott, Arthur

The Problemist, 1989

8/8/N1P2B2/1P1k4/8/8/4K2Q/8

#2

6 + 1

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe5#
  • Tries
    • 1.Qg3?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe5#
        • 2.Qf3#
      • 1...Ke6!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxd6!
    • 1.Qh7?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd6
        • 2.Qd7#
      • 1...Ke6!
  • Keys
    • 1.Qh3!
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kd6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P-FLIGHT::QAR1(B)
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