MESON Chess Problem Database

Problem Display
PID: 34176 (r3k3/nR3R2/8/8/8/8/8/4K3 w q - 0 1)

Bakke, Nils Adrian

The Problemist, 1990

r3k3/nR3R2/8/8/8/8/8/4K3

#2

3 + 3

5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Rf8#
    • 1...Rd8
      • 2.Rbe7#
    • 1...0-0-0
      • 2.Rfc7#
  • Tries
    • 1.Rg7?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...0-0-0
        • 2.Rgc7#
      • 1...Kf8!
  • Keys
    • 1.Rh7!
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...0-0-0
        • 2.Rhc7#

Anticipated by 24899(1918), 64310(1918), 64311(1945)

This anticipates 241698(2006), 173514(2017)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::R(C)
    • R(b);SBLOCK::R1(B)
    • K(c);0-0-0,OGATEB::R1(C)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • K(c);P-FLIGHT::R(C)
        • K(c);0-0-0,OGATEB::R1(C)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • K(c);P-FLIGHT::R(C)
      • K(c);0-0-0,OGATEB::R1(C)
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