MESON Chess Problem Database

Problem Display
PID: 241954 (8/8/8/8/8/Qp6/1r1NP3/2k1K3 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1933

8/8/8/8/8/Qp6/1r1NP3/2k1K3

#2

4 + 3

15148 Sadier Collection 2021
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kc2
      • 2.Qc5#
  • Tries
    • 1.Qa1+?
      • 1...Rb1
        • 2.Qc3#
        • 2.Qxb1#
      • 1...Kc2!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qxb2#
      • 1...Kb1
        • 2.Qxb2#
      • 1...Kc2
        • 2.Qxb2#

Anticipated by 206720(1925)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINR(b),P-FLIGHT::QAR(D)
  • Tries
    • Try
      • Q(D);CHECK,N_PINR(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAB1(D),XR(b)
    • Vars
      • K(a);N_SPINR(b),P-FLIGHT::QAR1(D),XR(b)
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