MESON Chess Problem Database

Problem Display
PID: 174970 (8/7K/6R1/5N2/4k3/3N4/2R5/1B6 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1901

8/7K/6R1/5N2/4k3/3N4/2R5/1B6

#2

6 + 1

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4+?
      • 1...Kd5
        • 2.Se3#
        • 2.Rd4#
      • 1...Kxf5
        • 2.Rf4#
      • 1...Kf3!
    • 1.Rg4+?
      • 1...Kxd3
        • 2.Rd4#
      • 1...Kf3
        • 2.Se5#
        • 2.Rf4#
      • 1...Kd5
        • 2.Ba2#
      • 1...Kxf5!
  • Keys
    • 1.Re2+!
      • 1...Kf3
        • 2.Sd4#
        • 2.Re3#
      • 1...Kd5
        • 2.Ba2#
      • 1...Kxf5
        • 2.Re5#

Anticipated by 69535(0000)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::R1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(C)::R1(E)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • R(B);CHECK
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);OGATE,S_FLIGHT,XS(D)::R1(B)
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