MESON Chess Problem Database

Problem Display
PID: 234762 (k2K4/8/2p5/1R6/8/8/4p1R1/6B1 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2015

k2K4/8/2p5/1R6/8/8/4p1R1/6B1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e1S
      • 2.Ra2#
    • 1...e1R
      • 2.Ra2#
  • Tries
    • 1.Kc8?
      • threat
        • 2.Ra5#
        • 2.Rb8#
      • 1...c5
        • 2.Ra5#
      • 1...e1Q
        • 2.Rb8#
      • 1...e1B
        • 2.Rb8#
      • 1...cxb5!
    • 1.Rb4?
      • 1...e1Q
        • 2.Ra2#
      • 1...e1S
        • 2.Ra2#
      • 1...e1B
        • 2.Ra2#
      • 1...e1R
        • 2.Ra2#
      • 1...c5!
  • Keys
    • 1.Kc7!
      • threat
        • 2.Rg8#
        • 2.Ra5#
        • 2.Rb8#
      • 1...cxb5
        • 2.Rg8#
      • 1...c5
        • 2.Ra5#
      • 1...e1Q
        • 2.Rb8#
      • 1...e1B
        • 2.Rg8#
        • 2.Rb8#
      • 1...e1R
        • 2.Ra2#
        • 2.Ra5#
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(a);OGATE::R(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R(C)
        • P(a);::R1(C)
      • Refutation
        • P(b);XR(C)
    • Try
      • R(C);
      • Vars
        • P(a);OGATE::R(B)
      • Refutation
        • P(b);
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • DUALS(3)
    • Vars
      • P(b);XR(C)::R(B)
      • P(b);::R(C)
      • P(a);::R1(C)
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