MESON Chess Problem Database

Problem Display
PID: 166415 (RBrk4/1PN5/3K4/8/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1926

RBrk4/1PN5/3K4/8/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc7
      • 2.Bxc7#
    • 1...Rxb8
      • 2.Rxb8#
  • Keys
    • 1.Ba7!
      • threat
        • 2.Rxc8#
        • 2.bxc8Q#
        • 2.bxc8R#
      • 1...Rxa8
        • 2.bxa8Q#
        • 2.bxa8R#
      • 1...Rb8
        • 2.Rxb8#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE,XS(C)::R(D)+B(E),DCHECK,XR(a)
    • R(a);OGATE,P_SPINR(a),XB(E)::R(D),XR(a)
  • Actual
    • B(E);P_PINR(a)
    • Threat
      • DUALS(3)
    • Vars
      • R(a);N_SPINR(a),OGATE,XR(D)::PXR(a)=Q
      • R(a);OGATEB::R(D),XR(a)
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