MESON Chess Problem Database

Problem Display
PID: 24364 (1NB5/3Pk3/1R6/7K/3P4/8/8/8 w - - 0 1)

la Motte, BW

Freie Presse, 1890

1NB5/3Pk3/1R6/7K/3P4/8/8/8

#2

6 + 1

5454 Near Snap 2010
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kg6?
      • 1...Kf8
        • 2.d8Q#
      • 1...Kd8!
    • 1.d8Q+?
      • 1...Kf7
        • 2.Rb7#
      • 1...Kxd8!
  • Keys
    • 1.Rb7!
      • 1...Kd6
        • 2.d8Q#
        • 2.d8R#
      • 1...Ke6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf7
        • 2.d8Q#
      • 1...Kd8
        • 2.Sc6#
      • 1...Kf8
        • 2.d8Q#
        • 2.d8R#

This anticipates 206712(1925), 87268(1989)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::P=Q
      • K(a);P-FLIGHT::P=Q
      • K(a);S_FLIGHT::S(E)
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