MESON Chess Problem Database

Problem Display
PID: 218464 (R4Nnb/1P3p2/4Nk1p/7p/4K2P/6B1/8/8 w - - 0 1)

Geary, William

Philadelphia Times, 1882

R4Nnb/1P3p2/4Nk1p/7p/4K2P/6B1/8/8

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.Be5#
  • Tries
    • 1.Sc7?
      • 1...Ke7
        • 2.Sd5#
      • 1...Bg7
        • 2.Sd5#
      • 1...Se7
        • 2.Se8#
        • 2.Be5#
      • 1...Kg7!
  • Keys
    • 1.Sf4!
      • 1...Ke7
        • 2.Sd5#
      • 1...Kg7
        • 2.Sxh5#
      • 1...Bg7
        • 2.Sd5#
      • 1...Se7
        • 2.Sxh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::B(A)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::S(D)
        • B(f);SBLOCK::S(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT::S(D)
      • K(b);S_FLIGHT::S(D),XP(a)
      • B(f);SBLOCK::S(D)
      • S(e);SBLOCK::S(D),XP(a)
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