MESON Chess Problem Database

Problem Display
PID: 201343 (8/7R/8/2B1k1N1/8/4N3/5K2/8 w - - 0 1)

Schaale, R

Dresdner Anzeiger, 1922

8/7R/8/2B1k1N1/8/4N3/5K2/8

#2

5 + 1

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rh5?
      • 1...Kf4
        • 2.Bd6#
      • 1...Kf6!
    • 1.Re7+?
      • 1...Kf4
        • 2.Sh3#
      • 1...Kf6!
  • Keys
    • 1.Rg7!
      • 1...Kf4
        • 2.Bd6#
      • 1...Kf6
        • 2.Bd4#

Anticipated by 222445(1884), 181779(1910)

This anticipates 205509(1925), 176177(1962), 230406(1973), 12315(1977), 222223(1982), 232139(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • K(a);S_FLIGHT::B(C)
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