MESON Chess Problem Database

Problem Display
PID: 195128 (3Q2R1/5Prk/7p/8/4Kp2/8/8/8 w - - 0 1)

Tauber, F Aurel

Magyar Sakkvilag, 1918

3Q2R1/5Prk/7p/8/4Kp2/8/8/8

#2

4 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg8
      • 2.Qxg8#
      • 2.fxg8Q#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qxg7#
      • 1...Rxf7
        • 2.Rh8#
        • 2.Qh8#
        • 2.Qg6#
        • 2.Qxf7#
      • 1...Rg1
        • 2.Rh8#
        • 2.Qh8#
      • 1...Rg2
        • 2.Rh8#
        • 2.Qh8#
      • 1...Rg3
        • 2.Rh8#
        • 2.Qh8#
      • 1...Rg4
        • 2.Rh8#
        • 2.Qh8#
      • 1...Rg5
        • 2.Rh8#
        • 2.Qh8#
      • 1...Rg6
        • 2.Rh8#
        • 2.Qh8#
        • 2.Qxg6#
      • 1...Rxg8!
  • Keys
    • 1.Qd5!
      • threat
        • 2.f8S#
      • 1...Kg6
        • 2.Qf5#
      • 1...Rxf7
        • 2.Qxf7#
      • 1...Rxg8
        • 2.fxg8Q#
      • 1...h5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XR(c)
      • Refutation
        • R(c);XR(D)
  • Actual
    • Q(C);
    • Threat
      • P=S
    • Vars
      • K(d);P_SPINR(c),S_FLIGHT::QAB1(C)
      • R(c);OGATE,XP(B)::QAR2(C),XR(c)
      • R(c);OGATE,XR(D)::PXR(c)=Q
      • P(b);OGATEB::QAR2(C),XP(b)
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