MESON Chess Problem Database

Problem Display
PID: 165307 (5Nk1/6n1/3Q4/8/8/7R/4K3/1B6 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 2017

5Nk1/6n1/3Q4/8/8/7R/4K3/1B6

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Bh7+?
      • 1...Kh8
        • 2.Sg6#
      • 1...Kf7!
    • 1.Rh8+?
      • 1...Kf7
        • 2.Bg6#
      • 1...Kxh8!
    • 1.Qe6+?
      • 1...Kxf8
        • 2.Rh8#
      • 1...Sxe6!
  • Keys
    • 1.Qf6!
      • 1...Se6
        • 2.Bh7#
        • 2.Rh8#
      • 1...Sf5
        • 2.Ba2#
        • 2.Rh8#
      • 1...Sh5
        • 2.Ba2#
        • 2.Bh7#
      • 1...Se8
        • 2.Ba2#
        • 2.Bh7#
        • 2.Rh8#

FEATURES

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