MESON Chess Problem Database

Problem Display
PID: 231441 (8/5R1K/4kP2/2Q5/8/8/8/8 w - - 0 1)

Schiffert, Gyorgy

Magyar Sakkvilag, 1927

8/5R1K/4kP2/2Q5/8/8/8/8

#2

4 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf7
      • 2.Qe7#
  • Tries
    • 1.Qe5+?
      • 1...Kxf7
        • 2.Qe7#
      • 1...Kxe5!
  • Keys
    • 1.Re7+!
      • 1...Kxf6
        • 2.Qe5#

FEATURES

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