MESON Chess Problem Database

Problem Display
PID: 241841 (4Q3/8/8/R2p4/3k4/1p6/1K2P3/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1930

4Q3/8/8/R2p4/3k4/1p6/1K2P3/8

#2

4 + 3

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qa4#
  • Tries
    • 1.Rxd5+?
      • 1...Kc4
        • 2.Qb5#
        • 2.Qe4#
      • 1...Kxd5!
    • 1.Qe3+?
      • 1...Kc4
        • 2.Qc5#
        • 2.Qc3#
      • 1...Kxe3!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxe5!
    • 1.e3+?
      • 1...Kc4
        • 2.Qb5#
      • 1...Kd3!
  • Keys
    • 1.Qe7!
      • 1...Kc4
        • 2.Qc5#

Anticipated by 99663(1925)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(D)
  • Tries
    • Try
      • R(C);CHECK,XP(c)
      • Refutation
        • K(b);P-FLIGHT,XR(C)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(D)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XQ(D)
    • Try
      • P(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(b);P-FLIGHT::QAR1(D)
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