MESON Chess Problem Database

Problem Display
PID: 261932 (r2k4/P7/1P1KB3/8/8/8/8/8 w - - 0 1)

Mortensen, Jan Robert (aka 'Adamas')

Problemnoter, 1964

r2k4/P7/1P1KB3/8/8/8/8/8

#2

4 + 2

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rb8
      • 2.axb8Q#
      • 2.axb8R#
  • Keys
    • 1.b7!
      • threat
        • 2.bxa8Q#
        • 2.bxa8R#
      • 1...Ke8
        • 2.bxa8Q#
        • 2.bxa8R#
      • 1...Rxa7
        • 2.b8Q#
        • 2.b8R#
      • 1...Rb8
        • 2.axb8Q#
        • 2.axb8R#
      • 1...Rc8
        • 2.bxc8Q#
        • 2.bxc8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE::PXR(a)=Q
  • Actual
    • P(A);
    • Threat
      • PXR(a)=Q
    • Vars
      • K(b);P-FLIGHT::PXR(a)=Q
      • R(a);N_GUARD,XP(D)::P=Q
      • R(a);OGATE::PXR(a)=Q
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