MESON Chess Problem Database

Problem Display
PID: 48063 (8/8/8/8/6K1/1N1B4/3pR3/3kB3 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

8/8/8/8/6K1/1N1B4/3pR3/3kB3

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...dxe1S
      • 2.Rd2#
    • 1...dxe1R
      • 2.Rd2#
  • Tries
    • 1.Kf3?
      • 1...dxe1Q
        • 2.Bc2#
      • 1...dxe1B
        • 2.Bc2#
      • 1...dxe1R
        • 2.Bc2#
        • 2.Rd2#
      • 1...dxe1S+!
    • 1.Rg2?
      • 1...dxe1Q
        • 2.Bc2#
      • 1...dxe1S
        • 2.Rd2#
      • 1...dxe1B
        • 2.Bc2#
      • 1...dxe1R
        • 2.Bc2#
        • 2.Rd2#
      • 1...Kxe1!
    • 1.Rh2?
      • 1...dxe1Q
        • 2.Bc2#
      • 1...dxe1S
        • 2.Rd2#
      • 1...dxe1B
        • 2.Bc2#
      • 1...dxe1R
        • 2.Bc2#
        • 2.Rd2#
      • 1...Kxe1!
  • Keys
    • 1.Rf2!
      • 1...Kxe1
        • 2.Rf1#
      • 1...dxe1Q
        • 2.Bc2#
      • 1...dxe1S
        • 2.Rd2#
      • 1...dxe1B
        • 2.Bc2#
      • 1...dxe1R
        • 2.Bc2#
        • 2.Rd2#

FEATURES

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