MESON Chess Problem Database

Problem Display
PID: 215709 (8/1p6/1p2P1K1/1N1k1N2/3P4/P5P1/2B1P3/8 w - - 0 1)

Barsdorf, J

Sonntagsblatt fur Jedermann, 1882

8/1p6/1p2P1K1/1N1k1N2/3P4/P5P1/2B1P3/8

#2

9 + 3

56 The Problemist 1938
6490 yacpdb 2020
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Sfd6?
      • 1...Kc6
        • 2.Be4#
      • 1...Kxe6!
    • 1.Bb3+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Sbd6#
      • 1...Kc6!
    • 1.Bd3?
      • 1...Kc6
        • 2.Se7#
      • 1...Kxe6!
  • Keys
    • 1.Ba4!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Se7#
      • 1...Kxe6
        • 2.Sc7#

This anticipates 149220(2010)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::S(G)
      • K(a);S_FLIGHT::S(F)
      • K(a);S_FLIGHT,XP(H)::S(F)
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