MESON Chess Problem Database

Problem Display
PID: 234773 (k7/8/K1Pn4/bR1N4/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2015

k7/8/K1Pn4/bR1N4/8/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Sc7#
    • 1...Bd2
      • 2.Sc7#
    • 1...Bc3
      • 2.Sc7#
    • 1...Bb4
      • 2.Sc7#
    • 1...Bc7
      • 2.Sxc7#
  • Keys
    • 1.c7!
      • threat
        • 2.Rb8#
      • 1...Bxc7
        • 2.Sxc7#
      • 1...Sxb5
        • 2.c8Q#
        • 2.c8R#
      • 1...Bb6
        • 2.Sxb6#
      • 1...Sb7
        • 2.c8Q#
        • 2.c8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::S(B)
    • B(a);N_GUARD::S(B),XB(a)
  • Actual
    • P(D);
    • Threat
      • R1(A)
    • Vars
      • B(a);XP(D)::S(B),XB(a)
      • S(b);N_GUARD,XR(A)::P=Q
      • B(a);N_GUARD::S(B),XB(a)
      • S(b);N_GUARD::P=Q
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