MESON Chess Problem Database

Problem Display
PID: 231434 (4NRn1/6Pk/8/6K1/8/8/8/8 w - - 0 1)

Regos, Imre

Magyar Sakkvilag, 1927

4NRn1/6Pk/8/6K1/8/8/8/8

#2

4 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Rh8#
    • 1...Sh6
      • 2.Rh8#
    • 1...Se7
      • 2.Rh8#
  • Tries
    • 1.Kh5?
      • 1...Sh6
        • 2.Rh8#
      • 1...Se7
        • 2.Rh8#
      • 1...Sf6+!
  • Keys
    • 1.Rf7!
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sh6
        • 2.Sf6#
      • 1...Se7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE::R1(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(b);OGATE::R1(D)
      • Refutation
        • S(b);CHECK
  • Actual
    • R(D);
    • Vars
      • S(b);N_GUARD::S(C),XS(b)
      • S(b);N_GUARD::S(C)
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