MESON Chess Problem Database

Problem Display
PID: 146681 (8/6NR/4p3/8/3k4/Q2P1K2/8/8 w - - 0 1)

Whitehead, Cyril

Australian Chess Problem Magazine, 1993

8/6NR/4p3/8/3k4/Q2P1K2/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sh5?
      • 1...Ke5
        • 2.Qc5#
      • 1...e5
        • 2.Rd7#
      • 1...Kd5!
    • 1.Rh6?
      • 1...Ke5
        • 2.Qc5#
      • 1...e5
        • 2.Rd6#
      • 1...Kd5!
  • Keys
    • 1.Se8!
      • 1...Kd5
        • 2.Qd6#
      • 1...Ke5
        • 2.Qc5#
      • 1...e5
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);SBLOCK::R(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);OGATE,SBLOCK::R(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAR2(A)
      • P(b);SBLOCK::R(E)
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