MESON Chess Problem Database

Problem Display
PID: 121013 (8/pkB5/N7/4K3/8/1B6/8/R7 w - - 0 1)

Anonymous

Source?, 0000

8/pkB5/N7/4K3/8/1B6/8/R7

#2

5 + 2

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ka8
      • 2.Bd5#
  • Tries
    • 1.Kd6?
      • 1...Ka8
        • 2.Bd5#
      • 1...Kc8!
    • 1.Ba4?
      • 1...Kxa6
        • 2.Bc6#
      • 1...Ka8
        • 2.Bc6#
      • 1...Kc8!
    • 1.Be6?
      • 1...Ka8
        • 2.Bd5#
      • 1...Kc6!
  • Keys
    • 1.Rb1!
      • 1...Kxa6
        • 2.Bc4#
      • 1...Kc6
        • 2.Ba4#
      • 1...Ka8
        • 2.Bd5#
      • 1...Kc8
        • 2.Be6#

This anticipates 6383(1929), 19272(1951), 157885(2009)

FEATURES

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