MESON Chess Problem Database

Problem Display
PID: 196687 (3Nk3/3R4/3K4/8/8/8/8/8 w - - 0 1)

Malmstrom, Gustaf Emanuel

6th Prize, Folket, 1919

3Nk3/3R4/3K4/8/8/8/8/8

#2

3 + 1

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Ra7?
      • 1...Kxd8
        • 2.Ra8#
      • 1...Kf8!
    • 1.Rb7?
      • 1...Kxd8
        • 2.Rb8#
      • 1...Kf8!
    • 1.Rg7?
      • threat
        • 2.Rg8#
      • 1...Kxd8
        • 2.Rg8#
      • 1...Kf8!
    • 1.Rh7?
      • threat
        • 2.Rh8#
      • 1...Kxd8
        • 2.Rh8#
      • 1...Kf8!
  • Keys
    • 1.Rf7!
      • 1...Kxd8
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT,XS(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT,XS(C)::R(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);P-FLIGHT,XS(C)::R(B)
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