MESON Chess Problem Database

Problem Display
PID: 87688 (R7/5PkN/5N2/8/2K3P1/8/8/B7 w - - 0 1)

Narroway, Edward

American Chess Problemist, 1950

R7/5PkN/5N2/8/2K3P1/8/8/B7

#2

7 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rg8+?
      • 1...Kh6
        • 2.g5#
        • 2.f8Q#
        • 2.f8B#
      • 1...Kxf7!
  • Keys
    • 1.f8S!
      • 1...Kh6
        • 2.Sg8#
      • 1...Kf7
        • 2.Ra7#
      • 1...Kh8
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(E)
  • Actual
    • P(E);
    • Vars
      • K(a);S_FLIGHT::S(D)
      • K(a);P-FLIGHT::R(G)
      • K(a);S_FLIGHT::R(G)+S(E)
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