MESON Chess Problem Database

Problem Display
PID: 110568 (8/7K/1R6/5n2/8/8/6R1/k7 w - - 0 1)

Dawson, Thomas Rayner

Asymmetry, 1927

8/7K/1R6/5n2/8/8/6R1/k7

#2

3 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rg4?
      • threat
        • 2.Ra4#
      • 1...Ka2
        • 2.Ra4#
      • 1...Sd4!
    • 1.Rg5?
      • 1...Se3
        • 2.Ra5#
      • 1...Sg3
        • 2.Ra5#
      • 1...Sd4
        • 2.Ra5#
      • 1...Sh4
        • 2.Ra5#
      • 1...Sd6
        • 2.Ra5#
      • 1...Sh6
        • 2.Ra5#
      • 1...Se7
        • 2.Ra5#
      • 1...Sg7
        • 2.Ra5#
      • 1...Ka2!
    • 1.Re6?
      • threat
        • 2.Re1#
      • 1...Kb1
        • 2.Re1#
      • 1...Se3!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Ra8#
      • 1...Ka2
        • 2.Ra8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • S(b);
    • Try
      • R(A);
      • Vars
        • S(b);OGATE::R(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • S(b);
  • Actual
    • R(A);
    • Threat
      • R(A)
    • Vars
      • K(a);P-FLIGHT::R(A)
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