MESON Chess Problem Database

Problem Display
PID: 159321 (Br1r4/kP6/2Qp4/8/K7/8/8/8 w - - 0 1)

Hoeg, Nils

Skakbladet, 1915

Br1r4/kP6/2Qp4/8/K7/8/8/8

#2

4 + 4

15532 Hoegs skakproblemer 1982
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb7
      • 2.Qxb7#
  • Tries
    • 1.Qc5+?
      • 1...Ka6
        • 2.Qa5#
      • 1...dxc5!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qa5#
      • 1...Ka6
        • 2.Qa5#
      • 1...Rxb7
        • 2.Qxb7#
      • 1...Rxa8
        • 2.b8S#
      • 1...Rbc8
        • 2.bxc8Q#

This anticipates 6167(1927)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,XP(C)::QAR1(B),XR(c)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • P(a);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • R(c);OGATE,P_SPINR(c),XP(C)::QAR1(B),XR(c)
      • R(c);OGATE,SBLOCK,XB(D)::P=S
      • R(c);OGATE::PXR(c)=Q
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