MESON Chess Problem Database

Problem Display
PID: 85958 (4k3/3R1R2/2P1n2K/8/8/8/8/8 w - - 0 1)

Speckmann, Werner

Post und Sport, 1965

4k3/3R1R2/2P1n2K/8/8/8/8/8

#2

4 + 2

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd8
      • 2.Rde7#
    • 1...Sf8
      • 2.Rfe7#
  • Keys
    • 1.Rh7!
      • 1...Kf8
        • 2.Rh8#
      • 1...Sd4
        • 2.Rh8#
      • 1...Sf4
        • 2.Rh8#
      • 1...Sc5
        • 2.Rh8#
      • 1...Sg5
        • 2.Rh8#
      • 1...Sc7
        • 2.Rh8#
      • 1...Sg7
        • 2.Rh8#
      • 1...Sd8
        • 2.Rh8#
      • 1...Sf8
        • 2.Rhe7#

Anticipated by 110025(1929-1931)

This anticipates 176341(1972), 15422(1983)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::R1(C)
    • S(a);SBLOCK::R1(D)
  • Actual
    • R(D);
    • Vars
      • K(b);P-FLIGHT::R(D)
      • S(a);N_GUARD::R(D)
      • S(a);SBLOCK::R1(D)
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