MESON Chess Problem Database

Problem Display
PID: 255096 (8/3B4/5N2/4k3/1K4R1/4p3/4P3/4B3 w - - 0 1)

Norden, Folke M

Schackvarlden, 1941

8/3B4/5N2/4k3/1K4R1/4p3/4P3/4B3

#2

6 + 2

15601 Albrecht-Leiss-Degener Collection 2021
5454 Near Snap 2025

SOLUTION

  • SOUND
  • Tries
    • 1.Rd4?
      • 1...Kxd4
        • 2.Bc3#
      • 1...Kxf6!
    • 1.Re4+?
      • 1...Kd6
        • 2.Bg3#
      • 1...Kxf6!
    • 1.Rg6?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf4
        • 2.Bg3#
      • 1...Kd6!
  • Keys
    • 1.Rg7!
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf4
        • 2.Bg3#
      • 1...Kd6
        • 2.Bg3#
      • 1...Kxf6
        • 2.Bc3#

Anticipated by 281641(1884)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(D)::B(A)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • R(D);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(A)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • R(D);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::B(A)
      • K(b);N_GUARD,S_FLIGHT,XS(E)::B(A)
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