MESON Chess Problem Database

Problem Display
PID: 173166 (8/8/8/8/1r1p4/2R3Pp/1RP4k/2K1Q3 w - - 0 1)

Ling, John Francis

Problem Observer, 2006

8/8/8/8/1r1p4/2R3Pp/1RP4k/2K1Q3

#2

6 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.cxb3#
  • Keys
    • 1.Rcb3!
      • threat
        • 2.c3#
        • 2.c4#
      • 1...Kg2
        • 2.c4#
      • 1...Rxb3
        • 2.cxb3#
      • 1...Rc4
        • 2.c3#
      • 1...d3
        • 2.cxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::R(C)+P(D),XR(c)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::R(C)+P(D)
      • R(c);OGATE,XR(E)::R(C)+P(D),XR(c)
      • R(c);P_PINP(D)::R(C)+P(D)
      • P(d);OGATE::R(C)+P(D),XP(d)
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