MESON Chess Problem Database

Problem Display
PID: 216172 (1r5k/1P2P2B/5P1K/8/8/8/8/8 w - - 0 1)

Vaughan, Colin V

Deutsche Schachzeitung, 1983

1r5k/1P2P2B/5P1K/8/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb7
      • 2.e8Q#
      • 2.e8R#
    • 1...Ra8
      • 2.bxa8Q#
      • 2.bxa8R#
    • 1...Rc8
      • 2.bxc8Q#
      • 2.bxc8R#
    • 1...Rd8
      • 2.exd8Q#
      • 2.exd8R#
    • 1...Rf8
      • 2.exf8Q#
      • 2.exf8R#
  • Keys
    • 1.f7!
      • 1...Rxb7
        • 2.e8Q#
        • 2.e8R#
        • 2.f8Q#
        • 2.f8R#
      • 1...Re8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Ra8
        • 2.bxa8Q#
        • 2.bxa8R#
      • 1...Rc8
        • 2.bxc8Q#
        • 2.bxc8R#
      • 1...Rd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Rf8
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Rg8
        • 2.fxg8Q#
        • 2.fxg8R#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD,XP(C)::P=Q
    • R(a);OGATE::PXR(a)=Q
  • Actual
    • P(A);
    • Vars
      • R(a);OGATE::PXR(a)=Q
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