MESON Chess Problem Database

Problem Display
PID: 187631 (3R4/2kP1P2/Q7/8/8/8/8/4K3 w - - 0 1)

Thomson, Robert Gavin

Chess Amateur (The), 1909

3R4/2kP1P2/Q7/8/8/8/8/4K3

#2

5 + 1

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rb8?
      • threat
        • 2.d8Q#
      • 1...Kxb8
        • 2.d8Q#
      • 1...Kxd7!
    • 1.Qc6+?
      • 1...Kxd8
        • 2.f8Q#
      • 1...Kxc6!
  • Keys
    • 1.f8B!
      • 1...Kxd8
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Threat
        • P=Q
      • Vars
        • K(a);S_FLIGHT,XR(E)::P=Q
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(E)::P=Q
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • P(D);
    • Vars
      • K(a);S_FLIGHT,XR(E)::QAR1(B)
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