MESON Chess Problem Database

Problem Display
PID: 8197 (1K2kr2/4P3/2P1R1P1/8/8/8/8/8 w - - 0 1)

Shanahan, Ian

The Problemist, 1995

1K2kr2/4P3/2P1R1P1/8/8/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.exf8S+?
      • 1...Kd8
        • 2.c7#
      • 1...Kxf8!
  • Keys
    • 1.c7!
      • threat
        • 2.c8Q#
      • 1...Kd7+
        • 2.exf8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);CHECK,XR(b)
      • Vars
        • K(a);P-FLIGHT::P(A)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • P(A);
    • Threat
      • P=Q
    • Vars
      • K(a);CHECK,S_FLIGHT::PXR(b)=S
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