MESON Chess Problem Database

Problem Display
PID: 6383 (8/5Bkp/7N/8/3K4/6B1/8/7R w - - 0 1)

O'Sylva, D

Chess Amateur (The), 1929

8/5Bkp/7N/8/3K4/6B1/8/7R

#2

5 + 2

2012 Miniature Chess Problems from Many Countries 1981
5454 Near Snap 2009
3713 Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kh8
      • 2.Be5#
  • Tries
    • 1.Bh4?
      • 1...Kxh6
        • 2.Bf6#
      • 1...Kh8
        • 2.Bf6#
      • 1...Kf8!
    • 1.Bd6?
      • 1...Kh8
        • 2.Be5#
      • 1...Kf6!
  • Keys
    • 1.Rg1!
      • 1...Kf6
        • 2.Bh4#
      • 1...Kxh6
        • 2.Bf4#
      • 1...Kf8
        • 2.Bd6#
      • 1...Kh8
        • 2.Be5#

Anticipated by 121013(0000)

This anticipates 157885(2009)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(B)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT,XS(D)::R(A)+B(B)
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • K(a);S_FLIGHT,XS(D)::B(B)
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