MESON Chess Problem Database

Problem Display
PID: 255814 (5K1k/8/5N1n/8/8/6R1/6r1/6Q1 w - - 0 1)

Renner, Kurt

Wiener Schachzeitung, 1938

5K1k/8/5N1n/8/8/6R1/6r1/6Q1

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rxg2?
      • 1...Sf5
        • 2.Rg8#
      • 1...Sf7
        • 2.Rg8#
      • 1...Sg8
        • 2.Rxg8#
      • 1...Sg4!
    • 1.Rh3?
      • threat
        • 2.Rxh6#
      • 1...Rg8+
        • 2.Qxg8#
      • 1...Rh2
        • 2.Qg7#
        • 2.Qg8#
      • 1...Rg7
        • 2.Qxg7#
      • 1...Rg6!
    • 1.Qa7?
      • threat
        • 2.Qg7#
        • 2.Qh7#
      • 1...Rxg3
        • 2.Qh7#
      • 1...Sf5
        • 2.Qh7#
      • 1...Sf7!
    • 1.Qxg2?
      • 1...Sf5
        • 2.Rg8#
      • 1...Sf7
        • 2.Rg8#
      • 1...Sg8
        • 2.Rxg8#
      • 1...Sg4!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rh7#
      • 1...Rxg7
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);XR(a)
      • Vars
        • S(b);N_GUARD::R1(B)
        • S(b);N_GUARD::R1(B),XS(b)
      • Refutation
        • S(b);
    • Try
      • R(B);P_PINS(b)
      • Threat
        • R(B),XS(b)
      • Vars
        • R(a);CHECK,OGATE::QAR1(A),XR(a)
        • R(a);OGATE::QAB1(A),XR(a)
      • Refutation
        • R(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XR(B)::QAR1(A)
        • S(b);::QAR1(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);XR(a)
      • Vars
        • S(b);N_GUARD::R1(B)
        • S(b);N_GUARD::R1(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • R(a);OGATE,XR(B)::QAB1(A),XR(a)
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Developed and maintained by Brian Stephenson.
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