MESON Chess Problem Database

Problem Display
PID: 242076 (8/2p1p3/2K1R3/5k2/2N5/6Q1/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/2p1p3/2K1R3/5k2/2N5/6Q1/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qg6#
  • Tries
    • 1.Qg1?
      • 1...Kxe6
        • 2.Qg6#
      • 1...Kf4!
    • 1.Qg2?
      • 1...Kxe6
        • 2.Qg6#
      • 1...Kf4!
    • 1.Qg5+?
      • 1...Kxe6
        • 2.Qg6#
      • 1...Kxg5!
    • 1.Qg7?
      • 1...Kxe6
        • 2.Qg6#
      • 1...Kf4!
  • Keys
    • 1.Kd7!
      • threat
        • 2.Se3#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT,XR(D)::QAR2(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • S(B)
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