MESON Chess Problem Database

Problem Display
PID: 151740 (8/1B2KN2/4R3/8/6k1/8/3N4/4B3 w - - 0 1)

McDowell, Michael

The Problemist Supplement, 2013

8/1B2KN2/4R3/8/6k1/8/3N4/4B3

#2

6 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Bf3#
  • Tries
    • 1.Kf6?
      • 1...Kf4
        • 2.Re4#
      • 1...Kh5
        • 2.Bf3#
      • 1...Kh3!
    • 1.Bf3+?
      • 1...Kh3
        • 2.Rh6#
      • 1...Kf5
        • 2.Rf6#
      • 1...Kf4!
    • 1.Rf6?
      • 1...Kh5
        • 2.Bf3#
      • 1...Kh3!
  • Keys
    • 1.Bc8!
      • 1...Kh3
        • 2.Re2#
      • 1...Kf4
        • 2.Re4#
      • 1...Kf5
        • 2.Rf6#
      • 1...Kh5
        • 2.Rh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(D)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::R1(C)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(a);S_FLIGHT::R(C)
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);S_FLIGHT::B(D)+R(C)
      • K(a);P-FLIGHT::R1(C)
      • K(a);S_FLIGHT::B(D)+R(C),DCHECK
      • K(a);S_FLIGHT::R1(C)
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